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ALS
Access Link SeriesSDH radio family
User manual
MN.00164.E - 001Volume 1/1
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The information contained in this handbook is subject to change without notice.
Property of Siae Microelettronica S.p.A. All rights reserved according to the law and according to the inter-
national regulations. No part of this document may be reproduced or transmitted in any form or by any
means, electronic or mechanical, without written permission from Siae Microelettronica S.p.A.
Unless otherwise specified, reference to a Company, name, data and address produced on the screen dis-
played is purely indicative aiming at illustrating the use of the product.
MS-DOS®, MS Windows® are trademarks of Microsoft Corporation
HP®, HP OpenView NNM and HP–UX are Hewlett Packard Company registered trademarks.
UNIX is a UNIX System Laboratories registered trademark.
Oracle® is a Oracle Corporation registered trademark.
Linux term is a trademark registered by Linus Torvalds, the original author of the Linux operating system.
Linux is freely distributed according the GNU General Public License (GPL).
Other products cited here in are constructor registered trademarks.
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ALS - MN.00164.E - 001 1
ALS
Section 1.USER GUIDE 7
1 DECLARATION OF CONFORMITY ............................................................................... 7
2 PURPOSE AND STRUCTURE OF THE MANUAL............................................................10
2.1 PURPOSE OF THE MANUAL.................................................................................10
2.2 AUDIENCE BASIC KNOWLEDGE ..........................................................................10
2.3 STRUCTURE OF THE MANUAL .............................................................................10
Section 2.INSTALLATION 13
3 LIST OF ABBREVIATIONS.........................................................................................13
4 EQUIPMENT INTRODUCTION ...................................................................................15
4.1 SYSTEM OVERVIEW ..........................................................................................15
4.2 APPLICATION ...................................................................................................15
4.3 SYSTEM ARCHITECTURE....................................................................................15
4.3.1 IDU.......................................................................................................16
4.3.1.1 IDU SDH modular.....................................................................16
4.3.1.2 IDU SDH compact ....................................................................17
4.3.2 ODU......................................................................................................17
4.3.3 Frequency reuse systems (with XPIC) ........................................................17
4.4 MANAGEMENT SYSTEM......................................................................................17
4.4.1 Hardware platform ..................................................................................18
4.4.2 Management ports..................................................................................18
5 INSTALLATION AND PROCEDURES FOR ENSURING THE ELECTROMAGNETIC COMPAT-
IBILITY25
5.1 ALS SYSTEM ....................................................................................................25
5.2 MECHANICAL INSTALLATION..............................................................................25
5.2.1 IDU installation.......................................................................................25
5.2.1.1 Connections for 1+0 frequency reuse systems..............................25
5.2.1.2 Connections for 1+1 frequency reuse systems..............................255.2.2 ODU installation......................................................................................26
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5.2.2.1 ODU installation for AS version...................................................26
5.2.2.2 ODU installation for ALS version .................................................26
5.3 ELECTRICAL WIRING.........................................................................................26
5.4 GROUNDING CONNECTION ................................................................................28
6 IDU SDH USER CONNECTIONS .................................................................................29
6.1 IDU SDH MODULAR CONNECTORS ......................................................................29
6.2 IDU SDH COMPACT CONNECTORS ......................................................................31
7 INSTALLATION ONTO THE POLE OF THE ODU AS WITH SEPARATED ANTENNA ........33
7.1 INSTALLATION KIT ...........................................................................................33
7.2 REQUIRED TOOLS FOR MOUNTING (NOT SUPPLIED) .............................................33
7.3 INSTALLATION PROCEDURE...............................................................................34
7.4 GROUNDING....................................................................................................36
8 INSTALLATION ONTO THE WALL OF THE ODU AS WITH SEPARATED ANTENNA .......47
8.1 INSTALLATION KIT ...........................................................................................47
8.2 REQUIRED TOOLS FOR MOUNTING (NOT SUPPLIED) .............................................47
8.3 INSTALLATION PROCEDURE...............................................................................47
8.4 GROUNDING....................................................................................................49
9 INSTALLATION ONTO THE POLE OF THE ODU AS WITH INTEGRATED ANTENNA ......59
9.1 FOREWORD .....................................................................................................59
9.2 INSTALLATION KIT ...........................................................................................59
9.3 REQUIRED TOOLS FOR MOUNTING (NOT SUPPLIED) .............................................59
9.4 INSTALLATION PROCEDURE...............................................................................60
9.4.1 Installation onto the pole of the support system and the antenna..................60
9.4.2 Installation of ODU..................................................................................60
9.4.3 ODU installation......................................................................................61
9.5 ANTENNA AIMING.............................................................................................62
9.6 COMPATIBILITY................................................................................................62
9.7 GROUNDING....................................................................................................62
10 INSTALLATION ONTO THE POLE OF THE ODU AS WITH INTEGRATED ANTENNA (KIT
V32307, V32308, V32309)79
10.1 FOREWORD .....................................................................................................79
10.2 INSTALLATION KIT ...........................................................................................79
10.3 REQUIRED TOOLS FOR MOUNTING (NOT SUPPLIED) .............................................80
10.4 INSTALLATION PROCEDURE...............................................................................80
10.5 1+0 MOUNTING PROCEDURES ...........................................................................81
10.5.1 Setting antenna polarization.....................................................................81
10.5.2 Installation of the centring ring on the antenna...........................................81
10.5.3 Installation of 1+0 ODU support ...............................................................81
10.5.4 Installation onto the pole of the assembled structure ...................................81
10.5.5 Installation of ODU (on 1+0 support).........................................................81
10.5.6 Antenna aiming ......................................................................................82
10.5.7 ODU grounding.......................................................................................82
10.6 1+1 MOUNTING PROCEDURES ...........................................................................82
10.6.1 Hybrid/circulator installation.....................................................................82
10.6.2 Installation of ODUs ................................................................................83
11 INSTALLATION ON POLE OF ODU ALS WITH SEPARATED ANTENNA.........................93
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11.1 TOOLS REQUIRED FOR INSTALLATION ................................................................93
11.2 INSTALLATION PROCEDURE...............................................................................93
12 INSTALLATION ON POLE OF THE ODU ALS WITH INTEGRATED ANTENNA..............105
12.1 FOREWORD ...................................................................................................105
12.2 NEEDED TOOLS..............................................................................................105
12.3 INSTALLATION PROCEDURE.............................................................................105
12.4 ANTENNA ALIGNMENT.....................................................................................106
12.5 INSTALLATION NOTE ON FREQUENCY REUSE SYSTEMS.......................................122
13 INSTALLATION NOTE ON FREQUENCY REUSE SYSTEMS .........................................124
13.1 Frequency reuse.............................................................................................124
13.2 Characteristics ...............................................................................................124
14 ODU AS SUBSTITUTION FOR 1+1 FREQUENCY DIVERSITY SYSTEM .......................127
14.1 1+1 FREQUENCY DIVERSITY SYSTEM: SUBSTITUTION OF ODU ............................127
Section 3.LINE-UP AND MAINTENANCE 129
15 PROGRAMMING AND SUPERVISION.......................................................................129
15.1 GENERAL.......................................................................................................129
16 LINE-UP OF THE RADIO HOP..................................................................................13016.1 LINE-UP OF THE RADIO HOP ............................................................................130
16.1.1 Antenna alignment and received field measurement ..................................130
16.1.2 Network element configuration ............................................................... 130
16.2 LASER FUNCTIONALITY TEST ...........................................................................132
16.2.1 Switch-on procedure .............................................................................132
16.2.2 Automatic laser shut-down check ............................................................ 132
16.3 LINE-UP OF RADIO HOP FOR FREQUENCY REUSE SYSTEMS WITH XPIC (SDH IDU MOD-
ULAR)132
16.3.1 Additional line-up operations for XPIC ...................................................... 132
16.4 NOTES ON MANUAL OPERATIONS ON ALS WITH XPIC (SDH IDU MODULAR)...........133
16.4.1 Management of automatic manual operations ...........................................133
16.4.2 Automatically activated manual operations ...............................................134
17 PERIODICAL CHECKS .............................................................................................138
17.1 GENERAL.......................................................................................................138
17.2 CHECKS TO BE CARRIED OUT ..........................................................................138
18 TROUBLESHOOTING...............................................................................................139
18.1 GENERAL.......................................................................................................139
18.2 TROUBLESHOOTING PROCEDURE .....................................................................139
18.2.1 Loop facilities ....................................................................................... 139
18.2.2 Alarm messages processing....................................................................140
18.3 FAULT MANAGEMENT PROCEDURE FOR FREQUENCY REUSE SYSTEMS WITH XPIC ...14118.3.1 Manual operations activated by FMP ........................................................141
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19 EQUIPMENT CONFIGURATION UPLOAD/SAVE/DOWNLOAD. PARAMETER MODIFICA-
TION AND CREATION OF VIRTUAL CONFIGURATIONS142
19.1 SCOPE ..........................................................................................................142
19.2 PROCEDURE...................................................................................................142
19.2.1 General equipment configuration............................................................. 142
19.2.2 Addresses and routing table ................................................................... 143
19.2.3 Remote Element Table........................................................................... 144
20 BACK UP FULL EQUIPMENT CONFIGURATION WITHOUT POSSIBILITY OF MODIFYING
THE PARAMETERS145
20.1 SCOPE ..........................................................................................................145
20.2 CONFIGURATION UPLOAD ...............................................................................145
20.3 CONFIGURATION DOWNLOAD ..........................................................................145
21 ALS - FIRMWARE UPDATE ......................................................................................147
21.1 INTRODUCTION..............................................................................................147
21.2 SYSTEM VERSION OF FIRMWARE......................................................................14721.3 PRELIMINARY CHECKS ....................................................................................148
21.4 FIRMWARE UPGRADE ......................................................................................148
21.4.1 N90485 - Equipment controller application download .................................148
21.4.2 N90487 - Radio application download (first branch)...................................150
21.4.3 N90489 (ALS6U-ALS18-ALS23)/N90543 (ALS13) - Radio FPGA download (first
branch)151
21.4.4 N90486 or N90530 - Modem download (first branch) .................................151
21.4.5 Radio branch switch (1+1 systems only) ..................................................152
21.4.6 N90487 - Radio application download - second branch (1+1 system only) ....153
21.4.7 N90489 (ALS6U-ALS18-ALS23)/N90543 (ALS13) - Radio FPGA download - second
branch (1+1 system only)153
21.4.8 N90486 or N90530 - Modem download - second branch (1+1 system only) ..15321.4.9 N90486 or N90508 - Baseband download.................................................154
21.5 FINAL CHECK .................................................................................................154
21.5.1 Downgrade procedure ...........................................................................155
Section 4.CHARACTERISTICS AND DESCRIPTIONS SPECIFICATION 157
22 SYSTEM CHARACTERISTICS ...................................................................................157
22.1 GENERAL.......................................................................................................157
22.2 SYSTEM CHARACTERISTICS.............................................................................158
23 CHARACTERISTICS OF THE INDOOR UNIT .............................................................162
23.1 GENERAL.......................................................................................................162
23.2 STM-1 ELECTRICAL INTERFACE ........................................................................162
23.3 STM-1 OPTICAL INTERFACE .............................................................................162
23.4 2 Mbit/s WAYSIDE INTERFACE..........................................................................163
23.5 64 kbit/s CONTRA-DIRECTIONAL INTERFACE V.11 ..............................................163
23.6 ALARM INTERFACE..........................................................................................164
23.7 NETWORK MANAGEMENT INTERFACE................................................................16423.8 MODULATOR/DEMODULATOR ...........................................................................165
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23.9 CABLE INTERFACE ..........................................................................................165
23.10 AVAILABLE LOOPS..........................................................................................166
23.11 BATTERY INTERFACE.......................................................................................166
23.12 POWER SUPPLY CURRENT................................................................................166
24 CHARACTERISTICS OF OUTDOOR UNIT..................................................................167
24.1 GENERAL.......................................................................................................167
25 DESCRIPTION OF THE SDH IDU .............................................................................168
25.1 GENERAL.......................................................................................................168
25.2 DESCRIPTION OF IDU SDH MODULAR ...............................................................168
25.2.1 Description of the LIM ...........................................................................168
25.2.1.1 STM-1 interface .....................................................................168
25.2.1.2 2xSTM-1 interface ..................................................................170
25.2.1.3 4xSTM-1 interface ..................................................................170
25.2.1.4 Up to 4xSTM-1 synchronisation ................................................171
25.2.2 Description of the RIM ........................................................................... 171
25.2.2.1 Modem .................................................................................171
25.2.2.2 Power supply and cable interface..............................................172
25.2.3 Description of RIM with XPIC .................................................................. 172
25.2.4 Description of the controller ................................................................... 173
25.2.4.1 Interface ports.......................................................................173
25.2.4.2 Equipment firmware ...............................................................173
25.2.5 IDU telemetry ...................................................................................... 174
25.2.6 IDU loops ............................................................................................ 174
25.2.6.1 Line loop...............................................................................174
25.2.6.2 Baseband loop .......................................................................175
25.2.6.3 IDU loop ...............................................................................17525.2.7 Front panel of SDH IDU modular ............................................................. 175
25.3 DESCRIPTION OF IDU SDH COMPACT................................................................175
25.3.1 General ............................................................................................... 175
25.3.1.1 STM-1 interface .....................................................................176
25.3.1.2 2xSTM-1 interface ..................................................................177
25.3.1.3 Modem .................................................................................177
25.3.1.4 Power supply and cable interface..............................................178
25.3.2 Controller ............................................................................................ 178
25.3.2.1 Interface ports.......................................................................179
25.3.2.2 Equipment firmware ...............................................................179
25.3.3 IDU telemetry ...................................................................................... 179
25.3.4 IDU loops ............................................................................................ 180
25.3.4.1 Line loop...............................................................................180
25.3.4.2 Baseband loop .......................................................................180
25.3.4.3 IDU loop ...............................................................................180
25.3.5 Front panel of SDH IDU compact............................................................. 180
26 ODU AS DESCRIPTION ...........................................................................................200
26.1 GENERAL.......................................................................................................200
26.2 TRANSMIT SECTION........................................................................................200
26.3 RECEIVE SECTION ..........................................................................................200
26.4 CABLE INTERFACE ..........................................................................................201
26.5 ATPC OPERATION ...........................................................................................201
26.6 1+1 HOT STAND-BY AND FREQUENCY DIVERSITY Tx SYSTEM ............................201
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26.7 POWER SUPPLY ..............................................................................................202
26.8 FREQUENCY REUSE.........................................................................................202
27 ODU ALS DESCRIPTION .........................................................................................206
27.1 GENERAL.......................................................................................................206
27.2 TRANSMITTER SECTION ..................................................................................206
27.3 RECEIVER SECTION ........................................................................................207
27.4 CABLE INTERFACE ..........................................................................................207
27.4.1 Power supply........................................................................................207
27.5 BRANCHING UNIT...........................................................................................208
27.6 ATPC.............................................................................................................208
27.7 RF LOOP (OPTION) .........................................................................................209
27.8 FREQUENCY REUSE.........................................................................................209
Section 5.COMPOSITION 217
28 IDU COMPOSITION ................................................................................................217
28.1 GENERAL.......................................................................................................217
28.2 COMPOSITION OF IDU SDH MODULAR ..............................................................217
28.3 COMPOSITION OF IDU SDH COMPACT...............................................................218
29 COMPOSITION OF THE OUTDOOR UNIT .................................................................219
29.1 GENERAL.......................................................................................................219
29.2 ODU AS COMPOSITION ...................................................................................219
29.3 ALS ODU COMPOSITION..................................................................................220
Section 6.SAFETY RULES AND EQUIPMENT DISPOSAL 223
30 FIRST AID FOR ELECTRICALSHOCK AND SAFETY RULES ........................................223
30.1 FIRST AID FOR ELECTRICAL SHOCK..................................................................22330.1.1 Artificial respiration ............................................................................... 223
30.1.2 Treatment of burns ............................................................................... 223
30.2 SAFETY RULES ...............................................................................................225
30.3 CORRECT DISPOSAL OF THIS PRODUCT (WasteElectrical & Electronic Equipment)...226
31 LIST OF FIGURES ...................................................................................................227
32 LIST OF TABLES .....................................................................................................233
33 ASSISTANCE SERVICE............................................................................................235
33.1 RQ.00961 MODULE .........................................................................................235
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ALS - MN.00164.E - 001 7
Section 1.USER GUIDE
1 DECLARATION OF CONFORMITY
SIAE Microelettronica S.p.AVia Buonarroti, 21 - Cologno (MI) - Italy
DECLARES
THAT THE PRODUCTS
Digital Radio Relay Systems model ALS
comply with the essential requirements of article 3 of the
R&TTE Directive (1999/05/EC)
and therefore are marked:
The following standards have been applied:
EN 60950:2000
"Safety of information technology equipment"
EN 301 489-4 v. 1.3.1 (2002-8)
"Electromagnetic compatibility and Radio spectrum Matters (ERM); ElectroMag-
netic Compatibility (EMC) standard for radio equipment and services; Part 4: Specific conditions for fixed
radio links and ancillary equipment and services"
ETSI EN 301 751 V1.2.1 (2002-11)
"Fixed Radio Systems; Point-to-Point equipments and antennas;Generic harmonized standard for Point-to-
Point digital fixed radio systems and antennas covering the essential requirements under article 3.2 of the
1999/5/EC Directive."
ETSI EN 302 217-2-2 V1.1.3 (2004-12)
"Fixed Radio Systems; Characteristics and requirements for point-to-point equipment and antennas; Part2-2: Harmonized EN covering essential requirements of Article 3.2 of R&TTE Directive for digital systems
operating in frequency bands where frequency co-ordination is applied."
The equipment makes use of non-harmonized frequency bands.Following the requirements of the R&TTE Directive (article 12)
and the relevant decision of the EC, in term of classification of Ra-dio Equipment and Telecommunications Terminal Equipment andassociated identifiers, the ALS shall carry the 'class 2' identifier:
Cologno Monzese, 16/05/2005 On behalf of SIAE Microelettronica S.p.A.
Chairman and Executive Officer
Alberto Mascetti
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10ALS - MN.00164.E - 001
2 PURPOSE AND STRUCTURE OF THE MANUAL
2.1 PURPOSE OF THE MANUAL
The purpose of this manual consists in providing the user with information which permit to operate and
maintain the ALS radio family.
Warning: This manual does not include information relevant to the SCT/LCT management program win-
dows and relevant application. They will be provided by the program itself as help-on line.
2.2 AUDIENCE BASIC KNOWLEDGE
The following knowledge and skills are required to operate the equipment:
• a basic understanding of SDH transmission
• installation and maintenance experience on digital radio system
• knowledge of IP/OSI networking.
2.3 STRUCTURE OF THE MANUAL
The manual is subdivided in sections, each one developing a subject pointed out as title of the section.
Each section consists of a set of chapters, which describe more in detail the main subject.
Section 1 - User Guide
It expounds the purpose and the structure of the manual.
Section 2 - Installation
The mechanical installation procedures are herein set down as well as the user electrical connections. The
content of the tool kit (if supplied) is also listed.
Section 3 - Line-up and maintenance
Line-up procedures are described as well as checks to be carried out for the equipment correct operation.
The list of the instruments to be used and their characteristics are also set down.The routine maintenance
actions are described as well as fault location procedures in order to identify the faulty unit and to re-es-
tablish the operation after its replacement with a spare one.
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ALS - MN.00164.E - 001 11
Section 4 - Characteristics and description
It traces the broad line of equipment operation and lists the main technical characteristics. List of abbre-
viation meaning is also supplied.
Section 5 - Composition
Position, part numbers of the components the equipment consist of, are shown in this section.
Section 6 - Safety rules and equipment disposal
It provides the information about the main safety rules and the equipment disposal (electrical and elec-
tronical wastes).
Section 7 - Lists and assistance
The section contains the lists of the figures and the tables of the manual and the information relevant to
the assistance service.
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ALS - MN.00164.E - 001 13
Section 2.INSTALLATION
3 LIST OF ABBREVIATIONS
- ATPC Automatic Transmit Power Control
- BB Baseband
- BBER Background Block Error Ratio
- BCM Block Coded Modulation
- BER Bit Error Ratio
- CC Co-channel
- C/I Carrier to Interference (ratio)
- DCC Data Communication Channel
- DRRS Digital Radio Relay Systems
- ECC Embedded Control Channel
- EMC Electromagnetic Compatibility
- ERC European Radiocommunications Committee
- HDLC High-level Data Link Control
- IDU Indoor Unit
- IF Intermediate Frequency
- LED Light Emitted Diode
- LAPS Link Access Procedure SDH
- LAN Local Area Network
- LIM Line Interface Module
- LO Local Oscillator
- LOS Loss Of Signal
- LOF Loss Of Frame
- LCT Local Craft Terminal
- MIB Management Information Base
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14 ALS - MN.00164.E - 001
- MSOH Multiplex Section Overhead
- MST Multiplex Section Termination
- MTBF Mean Time Between Failure
- NE Network Element
- NMI Network Management Interface
- ODU Outdoor Unit
- PDH Plesiochronous Digital Hierarchy
- PPI Plesiochronous Physical Interface
- PPP Point to Point Protocol
- RFC Radio Frequency Channel
- RFCOH Radio Frame Complementary OverHead
- RIM Radio Interface Module
- RPS Radio Protection Switching
- RST Regenerator Section Termination
- RTPC Remote Transmission Power Control
- RSL Received Signal Level
- RSOH Regenerator Section OverHead
- RSPI Radio Synchronous Physical Interface
- RST Regenerator Section Termination
- RTPC Remote Transmission Power Control
- SDH Synchronous Digital Hierarchy
- SETS SDH Equipment Timing Source
- SETG SDH Equipment Timing Generator
- SNMP Simple Network Management Protocol
- SOH Section OverHead
- SPI Synchronous Physical Interface
- STM-1 Synchronous Transport Module Level 1(155.52 Mbit/s)
- TCP/IP Transmission Control Protocol/Internet Protocol
- TMN Telecommunications Management Network
- TU Tributary Unit
- VC Virtual Container
- XPIC XPIC Interference Canceller
- XIF XPIC Improvement Factor
- VLAN Virtual LAN
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ALS - MN.00164.E - 001 15
4 EQUIPMENT INTRODUCTION
4.1 SYSTEM OVERVIEW
Access Link Series (ALS) radio family, is radio link family designed and developed by SIAE Microelettronica
S.p.A. for high capacity transmission.
The equipment offers scalable data rates from STM-1 up to 4xSTM-1 making use of 32 QAM or 128QAM
software programmable modulation.
Crosspolar Interference Canceller (XPIC) facility allows the frequency reuse of the radio channel thus per-
mitting to double the transmission capacity.
Cost-effective, high reliability, fast installation, commonalities and fully programmability are the most out-
standing performances that permits the ALS radio family to cope with success the very demanding tele-
communication market.
4.2 APPLICATION
The equipment finds application in the following fields:
• urban and regional network
• media diversity protection
• Gigabit ethernet extension
• SDH ring
• high capacity interconnection among GSM/UMTS cellular infrastructures
• spur route from backbone network.
4.3 SYSTEM ARCHITECTURE
The ALS equipment is split mount type. It consists of two separate units called IDU and ODU available in
different versions:
• IDU is 19” wired mechanical structure for indoor rack mounting. The unit height depends on the
different assembly versions.
It contains circuitry for in/out tributary interfacing and management of the whole equipment.
• ODU is a light, waterproof metallic body for pole or wall mounting. The internal circuitry makes up
the RF head interfacing the antenna. The two units are interconnected via a single coaxial cable.
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4.3.1 IDU
The IDU unit is available in two versions:
• IDU SDH modular, for STM-1 and Gigabit traffic
• IDU SDH compact, for STM-1 traffic.
4.3.1.1 IDU SDH modular
The IDU SDH is available in the following capacities:
• 1+0 version; 1 unit high, up to 2xSTM-1 capacity
• 1+1 version; 1 unit high, up to 2xSTM-1 capacity
• 1+0 version; 1 unit high, up to 2xSTM-1 capacity with frequency reuse
• 1+1 version; 2 unit high, up to 2xSTM-1 capacity with frequency reuse
• 1+0 version; 1 unit high, up to 4xSTM-1 capacity with frequency reuse
• 1+1 version; 2 unit high, up to 4xSTM-1 capacity with frequency reuse
• 1+0/1+1 Gigabit version, under development
STM-1 interfaces can be electrical or optical. With plug-in modules the electrical or optical interface can be
selected by the user for each STM-1 interface.
The IDU consists of LIM, CONTROLLER, RIM modules inserted into a wired shelf. The LIM interface contains
tributaries and processes the STM-n frames in RST operating mode.
Fig.1, Fig.2, Fig.3 and Fig.4 show equipment layouts, pointing out capacity and configuration with ODU AS
as example (these configurations can support ODU ALS too).
1xSTM-1 transmission: as shown in Fig.5 the STM-1 after the RSOH termination, along with 1x2 Mbit/s
wayside and 1x64 kbit/s V.11 service channel is sent to an SOH insert circuit to generate an aggregate
frame to be sent to the modulator within the RIM. The opposite is done at the receive side.
2xSTM-1 transmission: as shown in Fig.6 and Fig.7 two STM-1 after the RSOH termination, along with
the 2x2 Mbit/s waysides and 1x64 kbit/s service channel, is sent to a 2xSTM-1 multiplexer. These latter
generates an aggregate frame to be sent to the modulator within the RIM. The opposite is done at the
receive side.
4xSTM-1 transmission: as shown in Fig.8, the four STM-1, after the SOH termination, are two by two
grouped. The achieved 2x2 STM-1 signals are one by one sent to a 2xSTM-1 multiplexer along with the
2x2 Mbit/s waysides and the 1x64 kbit/s V.11 service signal. The aggregate signals, available at the output
of each 2x2 Mbit/s multiplexer, are sent to two independent RIMs and then to two independent ODUs con-
nected to a double polarised antenna.
Gigabit transmission: under development.
In 1+1 configuration the LIM duplicates the aggregate frames at Tx side and performs the changeover at
Rx side.
The RIM is supplied with the following:
• all the circuitry for the 32/128QAM programmable modemodulation including FEC corrector. In case
of cochannel operation the XPIC circuit option is used
• the power supply unit that supplies power to the IDU circuits and sends the battery voltage to the
ODU. Protection against cable short/open is also supplied.
• the cable interface for the bidirectional communication between IDU and ODU via interconnecting
cable.
The Controller:
• contains the equipment software that permits to control and to manage all the equipment function-
ality through a main controller and associated peripherals distributed within IDU and ODU
• interfaces the management system through Ethernet, RS232 and USB ports
• receives external alarms and sends to relay contacts along the internal alarms generated by the
equipment.
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ALS - MN.00164.E - 001 17
4.3.1.2 IDU SDH compact
IDU SDH compact is available for 1xSTM-1/2xSTM-1 capacity and 1+0 configuration. The unit description
is included in the homonymous paragraph.
4.3.2 ODU
The ODU unit contains circuits that permits to interface from one side one IDU and the antenna from the
other side.
The QAM modulated carrier is shifted to RF frequency bands through a double conversion. Similarly it oc-
curs at the receive side to send the IF converted carrier to the demodulator within the IDU.
It is possible to join two ODU units on one single supporting plate (pole or wall). In the support system
there is the hybrid for 1+1 hot stand-by configuration or the circulator for 1+1 frequency diversity config-
uration.
ODU unit is available for ODU AS and ODU ALS versions.
4.3.3 Frequency reuse systems (with XPIC)
The frequency reuse systems permit to double the link capacity. It is possible to transmit one carrier on
vertical polarization and one on horizontal polarization.
A cross polar interference canceller (XPIC) is necessary to reduce the effects of cross polar interference.
The idea is that, with XPIC, the receiver re-constructs the wanted signal and deletes the interference.
The interference is unknown and it is obtained in function of received signal on other polarization.
The XPIC circuits are housed into indoor unit.
4.4 MANAGEMENT SYSTEM
The ALS family radio equipment can be managed by the following:
• SCT/LCT for the management of subnetworks. The two programs are running on the PC under win-
dows platform.
• NMS5UX for the management of large networks. The program is running on workstation under Unix
platform and Linux platform.
Both tools use SNMP as management protocol along with IP or IPoverOSI as communication protocol. Themain management functionalities implemented are:
• fault management (alarms, events, date, time, type, address, severity, etc...)
• equipment configuration and test: configuration parameters, loopback, manual forcing of 1+1
switching, mapping of relay alarms and user input
• software management: software release management and software downloading
• performance management: all performance according with ITU-T G.828 are supported, BER meas-
urements, Rx level measurements etc...
• security management: management of security levels for operator access.
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18 ALS - MN.00164.E - 001
4.4.1 Hardware platform
The hardware/software platform used by SCT/LCT is based on personal computer having at least following
characteristics:
• microprocessor Pentium 133 MHz or more
• 64 Mbyte RAM
• windows compatible graphic monitor
• NIC interface
• HD with 50 Mbyte of free space
• Windows 95/Windows NT/Windows 98/Windows 2000/Windows XP.
4.4.2 Management ports
The SCT/LCT program is connected to the equipment via the following communication ports:
• Ethernet LAN, 10BaseT, 10Base2, AUI
• Asynchronous RS232 serial line
• USB port
• Radio via DCC (Data Communication Channel embedded into the SOH of STM-n frame).
Fig.1 – 1xSTM-1 and 2xSTM-1 unprotected version
2xSTM-1
1U IDU
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ALS - MN.00164.E - 001 19
Fig.2 – 1xSTM-1 and 2xSTM-1 protected version
Fig.3 – 2xSTM-1, 4xSTM-1 unprotected version
2xSTM-1
1U IDU
Branching
1U IDU
4xSTM- 1
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20 ALS - MN.00164.E - 001
Fig.4 – 4xSTM1 optical interface protected version
Branching Branching
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ALS - MN.00164.E - 001 21
Fig.5 – 1+0, up to 1xSTM-1 equipment block diagram, with ODU AS
R S O H
d r o p
R S O H
i n s e r t
S O H
i n s e r t
S O H
i n s e r t
L I M
E n c o d e r
M O D
D e c o d e r
D E M
I n t e r f .
c a v o
G e s t .
O D U
P S U
R I M 1
A l i m .
I D U
B a t t .
R T 1
I n t e r f .
c a v o
T x
R x
+
-
C o n t r .
O D U
A l i m .
O D U
C o n t r o
l l e r
p r i n c
. C O N T R O L L E R
C o n t r . I D U
G e s t .
O D U
V i s u a l .
a l l a r m i
S C T /
L C T
O D U A S
1 x 2 M b i t / s
1 x 2 M b i t / s
1 x S T M - 1
1 x S T M - 1
I D U
6 4 k b i t / s
6 4 k b i t / s
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22 ALS - MN.00164.E - 001
Fig.6 – 1+0, up to 2xSTM-1 equipment block diagram, with ODU AS
E l a b
.
S D H
E l a b
.
S D H
2 x S T M - 1
M U X
2 x S T M - 1
D E M U X
L I M
E n c o d e r
M O D
D e c o d e r
D E M
I n t e r f .
c a v o .
G e s t .
O D U
P S U
R I M 1
A l i m .
I D U
B a t t .
R T 1
I n t e r f .
c a v o
T x
R x
+
-
C o
n t r .
O
D U
A l i m .
O D U
C o n t r o l l e r
p
r i n c . C
O N T R O L L E R
C o
n t r .
I
D U
G e s t .
O D U
V i s u a l .
a l l a r m i
S C T /
L C T
O D U
2 x 2 M b i t / s
2 x 2 M b i t / s
2 x S T M - 1
2 x S T M - 1
I D U
6 4 k b i t / s
6 4 k b i t / s
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ALS - MN.00164.E - 001 23
Fig.7 – 1+1, up to 2xSTM-1 equipment block diagram, hot stand-by or
frequency diversity versions with ODU AS
E l a b .
S D H
E l a b .
S D H
2
x S T M - 1
M U X
2 x S T M - 1
D
E M U X
L I M
C o d e r
M O D
D e c o d e r
D E M
I n t e r f .
c a v o
O D U
m a n a g
P S U
R I M 1
A
l i m .
I D U
B a t t .
R T 1
I n t e r f .
c a v o
T x
R x
+ -
C o n t r .
O D U
A l i m .
O D U
C o n t r o l l e r
p r i n c . C
O N T R O L L E R
C o n t r .
I D U
G e s t .
O D U
V i s u a l .
a l l a r m i
S C T /
L C T
O D U
2 x 2 M b i t / s
C o d e r
M O D
D e c o d e r
D E M
I n t e r f .
c a v o
G e s t .
O D U
P S U
R I M 2
A
l i m .
I D U
B a t t .
R T 2
I n t e r f .
c a v o
T x
R x
+
-
C o n t r .
O D U
A l i m .
O D U
I D U
2 x 2 M b i t / s
2 x S T M - 1
2 x S T M - 1
6 4 k b i t / s
6 4 k b i t / s
F r e
q .
D i v e r s i t y
H o t S t a n d - b y
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24 ALS - MN.00164.E - 001
Fig.8 – 1+0, 4xSTM-1 equipment block diagram, with ODU AS
E l a b .
S D H
E l a b .
S D H
2 x S
T M - 1
M
U X
2 x S T M - 1
D E M
U X
L I M
C o d e r
M O D
D e c o d e r
D E M
I n t e r f .
c a v o
G e s t .
O D U
P S U
R I M 1
A l i m
. I D U
B a t t .
I n t e r f .
c a v o
T
x
R
x
+
-
C o n t r .
O D U
A l i m .
O D U
C o n t r o l l e r
p r i n c . C
O N T R O L L E R
C o n t r .
I D U
G e s t .
O D U
V i s
u a l .
a l l a r m i
S C T /
L C T
O D U 1
2 x S T M - 1
C o d e r
M O D
D e c o d e r
D E M
I n t e r f .
c a v o
G e s t .
O D U
P S U
R I M 2
A l i m
. I D U
B a t t .
I n t e r f .
c a v o
T
x
R
x
+
-
C o n t r .
O D U
A l i m .
O D U
I D U
O D U 2
E l a b .
S D H
E l a b .
S D H
2 x S
T M - 1
M
U X
2 x S T M - 1
D E M U X
2 x S T M - 1
X P I C
4 x S T M - 1
X P I C
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ALS - MN.00164.E - 001 25
5 INSTALLATION AND PROCEDURES FOR ENSUR-
ING THE ELECTROMAGNETIC COMPATIBILITY
5.1 ALS SYSTEM
The equipment consists of IDU and ODU(s) units and is mechanically made up of a wired 19" subrack (IDU)
and a weather proof metallic container (ODU).
After unpacking, mechanical installation takes place followed by electrical connections as described in the
following paragraphs.
5.2 MECHANICAL INSTALLATION
5.2.1 IDU installation
On their sides the subracks making up the several IDU versions are provided with two holes for the M6
screws fastening the subracks to a rack or to a mechanical 19" structure. The front of the IDU mechanicalstructure is provided with two holes at the sides. This permits to fasten the subrack to a 19” rack by means
of 4 M6 screws.
Other close equipment have to be spaced by 1/2 unit (22 mm).
5.2.1.1 Connections for 1+0 frequency reuse systems
The frequency reuse systems require interconnections between the RIMs.
They make use of cables with SMA-SMA male connectors.
Fig.9 shows the interconnections for 1+0 version.
5.2.1.2 Connections for 1+1 frequency reuse systems
The frequency reuse systems require interconnections between the RIMs.
They make use of cables with SMA-SMA male connectors.
Fig.10 shows interconnections for 1+1 version.
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26 ALS - MN.00164.E - 001
5.2.2 ODU installation
The description of installation procedures are different depending on ODU versions, As or ALS.
5.2.2.1 ODU installation for AS version
Refer to following procedures:
• Installation onto the pole of the ODU AS with separated antenna (see chapter 7)
• Installation onto the wall of the ODU AS with separated antenna (see chapter 8)
• Installation onto the pole of the ODU AS with integrated antenna (see chapter 9)
• Installation onto the pole of the ODU AS with integrated antenna (KIT V32307, V32308, V32309)
(see chapter 10)
5.2.2.2 ODU installation for ALS version
Refer to following procedures:
• Installation onto the pole of the ODU ALS with separated antenna (see chapter 11)
• Installation onto the pole of the ODU AS with integrated antenna (see chapter 12)
Fig.9 – Interconnections for frequency reuse - 1+0 version
Fig.10 – Interconnections for frequency reuse - 1+1 version
5.3 ELECTRICAL WIRING
The electrical wiring must be done using appropriate cables thus assuring the equipment responds to the
electromagnetic compatibility standards.
The cable terminates to flying connectors which have to be connected to the corresponding connectors on
the equipment front.
Position and pin-out of the equipment connectors are available in this section.
Tab.1 shows the characteristics of the cables to be used and the flying connector types.
STM1-4STM1-3STM1-2STM1-1
FAIL
V11W.S.2W.S.1
IDU ODU
REM
TEST
LCT RS232 USER IN/OUT
Q3
R
XX
+-
RIM
RIM
1
2
2
1
RIM
RIM
-+
X X
XX
+-
RIM
RIM
1
2
2
1
RIM
RIM
-+
X X
XX
+-
RIM
RIM
1
2
2
1
RIM
RIM
-+
X X
IDU ODU
REM
TEST
LCT RS232 USER IN/OUT
Q3
R
V11W.S.2W.S.1
STM1-4STM1-3STM1-2STM1-1
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ALS - MN.00164.E - 001 27
Tab.11 - Cable and connector characteristics
Interconnecting pointsType of connector terminating
the cableType of cable/conductor
Battery Polarised SUB-D 3W3 female con-nector
Section of each wire 2.5 sqmm 1
Tributary signals
1.0/2.3 male connector
– 75 ohm coaxial cable with double
shield diameter 4.5 mm dielectric
in expanded polyethylene type
2YCC 0.4/2.5 or equivalent
– Alternatively to the above op-
tion, 75 ohm coaxial cable with
double shield, diameter 3.1 mm
dielectric in Teflon type RG179 B/U
DS or equivalent
SUB-D 25 pin male connector
–120 Ohm balanced four symmet-
ric pairs with shield–75 Ohm unbalanced four coaxial
cable pairs with the shield connect
to ground pin (see “6 IDU SDH
USER CONNECTIONS” document
for pin details)
1.0/2.3 male connector- 75 ohm coaxial cable with double
shield
User inputs/alarms outputFemale type D connector with 9
pins and shielded holder
9 conductor cable with double
brass sheath type interconductor
DB 28.25 or equivalent
RS232Female type D connector with 9
pins and shielded holder
9 conductor cable with double
brass sheath type interconductor
DB 28.10 or equivalent
GND Faston male type Section area 6 sq. mm.
LCT USB Female USB type B Cable USB 1.1
1 For power cable length longer than 20 m. a section of 4 mm is required.
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28 ALS - MN.00164.E - 001
5.4 GROUNDING CONNECTION
Fig.11 and annexed legend show how to perform the grounding connections.
Legend
(1) IDU grounding point, fast type. The cross section area of the cable used must be 4 sq. mm. The
faston is available on the IDU both sides.
(2) ODU grounding bolt. The cross section area of the cable used must be 16 sq. mm.
(3) IDU-ODU interconnection coax cable terminated with N-type male (ODU side) and SMA male (IDU
side).
(4) Grounding kit type Cabel Metal or similar to connect the shield of interconnection cable.
(5) Matching cable (tail) terminated with N male and N female connectors.
(6) Battery grounding point of IDU to be connected to earth by means of a cable with a section area
2.5 sq. mm. Length 10 m.
(7) Grounding cords connected to a real earth internal of station. The cross section area of the cable
must be 16 sq. mm.
Fig.11 - Grounding connection
IDUunit
ODUunit
2
6(+) (-)
4
Localground
Rack
ground
Indoor
Stationground
7
1 5
3 4 3
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ALS - MN.00164.E - 001 29
6 IDU SDH USER CONNECTIONS
6.1 IDU SDH MODULAR CONNECTORS
The user connections are performed through connectors on RIM/LIM/CONTROLLER modules. Fig.12 shows
the connectors position.
Warning: The connector position are the same for all the IDU version.
The connectors are the following:
LIM module
• STM-1 in/out: electrical interface with connectors 1.0/2.3 75 Ohm female type; plug-in with elec-
trical interface 1.0/2.3 connector module; plug-in with optical interface LC connector module
• WS1/WS2: connectors RJ45 female for 2 Mbit/s way side: refer to Tab.2 for connector pin-out.
• V11: connector RJ45 female for 64 kbit/s contradirectional. Refer to Tab.3 fro connector pin-out.
CONTROLLER module
• LCT: connector USB type B male. For pin-out refer to USB standards
• USER IN/OUT: connector SUB-D, 9 pins male type. Refer to Tab.4 for connector pin-out.
• RS232: connector SUB-D, 9 pins male type. Refer to Tab.5 for connector pin-out.
• Q3: connector BNC or connector RJ45. Refer to Tab.6 for connector RJ45.
RIM module
• Connector SMA/50 Ohm female for connection to ODU
• Connector SUB-D, 3 pin male for connection to battery
• Connector SMA/50 Ohm female for connection to other RIM for XPIC correction (only for XPIC equip-
ment).
Fig.12 – Typical connector position
W.S.1 W.S.2 V11
FAIL
STM1-1 STM1-2
R
Q3
USER IN/OUTRS232LCT
TEST
REM
ODUIDU
2
1
RIM
RIM-
+
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30 ALS - MN.00164.E - 001
Tab.2 – WS1/WS2 connector pin-out for 2 Mbit/s
Tab.3 – V11 connector pin-out for 64 kbit/s channel - V.11 interface
Tab.4 – User in/out connector pin-out for external alarm input and alarm transfer to outside
Pin Description
1 Tx–C
2 Tx–F
3 GND
4 ––
5 Rx–C
6 Rx–F
7 GND
8 ––
Pin Description
1 D–V11–Tx
2 D+V11–Tx
3 C–V11–Tx
4 C+V11–Tx
5 D–V11–Rx
6 D+V11–Rx
7 C–V11–Rx
8 C+V11–Rx
Pin Description
1 Realy 1 common
2 NA/NC relay 1 contact
3 Realy 2 common
4 NA/NC relay 2 contact
5 User input 04
6 User input 03
7 User input 02
8 User input 01
9 GND
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ALS - MN.00164.E - 001 31
Tab.5 – RS232 connector pin-out for connection to/from supervision system (modular IDU)
Tab.6 – RJ45 connector pin-out for 10BaseT Ethernet connection
6.2 IDU SDH COMPACT CONNECTORS
The user connections are performed through connectors on the unit front. Fig.13 shows the connectors
position.
The connectors are the following:
• STM-1 in/out: electrical interface with connectors 1.0/2.3 75 Ohm female type; plug-in with elec-
trical interface 1.0/2.3 connector module; plug-in with optical interface LC connector module
• WS1/WS2: connectors RJ45 female for 2 Mbit/s way side: refer to Tab.2 for connector pin-out.
• V11: connector RJ45 female for 64 kbit/s contradirectional. Refer to Tab.3 for connector pin-out.
• LCT: connector USB type B male. For pin-out refer to USB standards
• USER IN/OUT: connector SUB-D, 9 pins male type. Refer to Tab.4 for connector pin-out.
• RS232: connector RJ45 type. Refer to Tab.7 for connector pin-out.
• Q3: double connector RJ45. Refer to Tab.6 for connector RJ45.
• Connector SMA/50 Ohm female for connection to ODU
• Connector SUB-D, 3 pin male for connection to battery
Pin Description
1 Not to be connected
2 Rx D (IN)
3 Tx D (OUT)
4 Not to be connected
5 GND
6/7/8/9 ––
Pin Description
1 Tx+
2 Tx–
3 Rx+
4 ––
5 ––
6 Rx–
7 ––
8 ––
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32 ALS - MN.00164.E - 001
Tab.7 - Pin out of IDU compact RS232 connector
Fig.13 - Connectors position
Pin Description
1 RTS
2 TxD
3 DTR
4 DSR
5 Gnd
6 RxD
7 CTS
8 n.c.
LCT
+ -
IDU
ON
ODU
TEST
USER IN/OUT
RS232V11
Q 3/ 1 Q 3/ 2
1
2
21
2Mb/s WAYS IDE
STM1-2STM1-1
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ALS - MN.00164.E - 001 33
7 INSTALLATION ONTO THE POLE OF THE ODU AS
WITH SEPARATED ANTENNA
7.1 INSTALLATION KIT
Following installation kits are supplied with the equipment:
• 1+0 system
- antisliding strip (see Fig.14)
- supporting plate plus 60–114 mm pole fixing bracket and relevant nuts and bolts (see Fig.15)
- adapting tools and relevant bolts and nuts for 219 mm pole
- antenna side flange, variable as function of RF frequency (see Fig.17)
- support with ODU fast locking mechanism (see Fig.15)
- connection to the antenna with flexible wave guide and possible use of a rigid elbow (optional)
(see Fig.17)
- kit for ground connection making part of ODU
• 1+1 system
- antisliding strip (see Fig.14)
- supporting plate plus pole fixing bracket and relevant nuts and bolts (see Fig.15)
- adapting tools and relevant bolts and nuts for 219 mm pole
- hybrid/circulator with ODU fast locking mechanism (see Fig.19), (hybrid for 1+1 hot stand-by
configuration, circulator for 1+1 frequency diversity configuration)
- flexible waveguide trunk for connection to antenna (optional) (see Fig.17)
- kit for ground connection making part of the two ODUs.
Warning: in order to avoid damages to flexible waveguides, don’t fold or twist them more than values
specified as limit in installation instructions of the waveguide supplier.
7.2 REQUIRED TOOLS FOR MOUNTING (NOT SUPPLIED)
• N.2 13mm torque wrench
• N.1 15 mm torque wrench
• N.1 17 mm torque wrench
• N.1 3 mm Allen wrench
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34 ALS - MN.00164.E - 001
7.3 INSTALLATION PROCEDURE
Installation procedure proceeds according to the following steps:
• 1+0 system: installation onto the pole of the supporting plate 2
• 1+0 system: installation onto the pole of the supporting plate by Band-it
• 1+1 system: installation onto the pole of the supporting plate 2
• Installation of the ODU (common to both 1+0 and 1+1 system)
• ODU grounding
1+0 system – Installation onto the pole of the supporting plate
Fig.14 – Mount antislide strip around the pole. The position of the plastic blocks depends on the position
of the supporting plate (see next step)
Fig.15 – Adhere the supporting plate to the antisliding strip plastic blocks and then secure it to the pole
through the fixing bracket for 60–114 mm pole (see Fig.15). Bolts and nuts are available on the supportingplate. Tightening torque must be 32 Nm.
Warning: As shown in Fig.16 an adapting kit must be used for the 219 mm pole. It consists of an additional
plate to enlarge the standard supporting plate dimension and relevant U–bolt for 219 mm pole fixing.
Fig.17 – Fix the flexible waveguide to the antenna side flange. Four fixing screws are available the dimen-
sions of which depend on the waveguide type. Tighten progressively and alternatively the four screws with
the following torque:
Tab.8 - Torques for tightening screws
Fig.17 – Fix the antenna side flange to the support with ODU fast locking mechanism. The flange can be
mounted horizontally (as shown in Fig.17) or vertically as function of convenience.
Fig.18 – Fix the support with ODU fast locking mechanism to the supporting plate making use of available
bolts and nuts. Fig.18 shows the possible positions. Tightening torque must be 18 Nm.
1+0 system - Installation onto the pole of the supporting plate by Band-it
In case of installation of an ODU 1+0 with separated antenna, the pole fixing system Band-it can be used:
through the holes (see Fig.21) on the base of the ODU support two metallic strips are placed tightening
the pole. Two clips close the strips.
The characteristics of the strip are:
• thickness = 0,76 mm
• width = 19 mm
• material = steel AISI 201/304
Clip characteristics are:
• material = steel AISI 201/304,
2 In case of 219 mm pole, an adapting kit is supplied for the purpose.
Frequencies Screw Tool Torque
from 18 to 38 GHz Allen screw M3 Allen key 2.5 mm 1 Nm
up to 15 GHz Allen screw M4 Allen key 3 mm 2 Nm
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ALS - MN.00164.E - 001 35
1+1 versions – Installation onto the pole of the supporting plate
Fig.14 – Mount antislide strip around the pole. The position of the plastic blocks depends on the position
of the supporting plate (see next step)
Fig.15 – Position the supporting plate to the antisliding strip plastic blocks and then secure it to the pole
through the fixing bracket for 60–114 mm pole. Bolts and nuts are available on the supporting plate kit.Tightening torque must be 32 Nm.
Fig.19 – Secure the hybrid/circulator with ODU fast locking mechanism to the supporting plate using bolt
and nuts available on the support plate. Tightening torque must be 18 Nm.
Remove the plastic cover from the hybrid flange sides.
Warning: Do not remove the foil from the hybrid flange sides.
Fig.19 – Fix the flexible waveguide to the antenna side flange. Four fixing screws are available the dimen-
sions of which depend on the waveguide type. Tighten progressively and alternatively the four screws with
the following torque:
Tab.9 - Torques for tightening screws
Warning: It is advisable to shape the waveguide flexible trunk, connecting ODU flange with antenna flange
as shown in Fig.23. This avoids possible condensate to be channelled towards the ODU flange.
Installation of the ODU
1 Bring the ODU with the two hands and position the ODU handle at the bottom side.
2 Remove the plastic cover from the ODU flange side.Warning: Do not remove the foil from the flange. Apply silicon grease e.g. type RHODOSIL PATE
4 to the O–ring of Fig.22.
3 Position the ODU body close to the support with ODU fast locking mechanism and align the corre-
spondent flanges:
- 1+0, align ODU side flange (see Fig.22) to antenna side flange (ODU position depends on the
polarization) see Fig.17
- 1+1 hot stand-by, align ODU side flange (see Fig.22) to hybrid side flange (see Fig.19)
- 1+1 frequency diversity, align ODU side flange (see Fig.22) to circulator side flange (see Fig.19)
Note: Hybrid and circulator differ for waveguide orientation. Circulator is shown in Fig.20.
4 After flange alignment, turn the ODU body approx. 30° anti–clockwise and then insert it into the
support and search for alignment between reference tooth on the support (see Fig.17 – 1+0 version
or Fig.19 – 1+1 version) and ODU body reference tooth (see detail Fig.22)
5 When alignment is achieved, turn the ODU body clockwise until “clack” is heard and the ODU rota-
tion stops.
6 Secure ODU body on the support by tightening bolts (1) (see Fig.17 – 1+0 version or Fig.19 – 1+1
version). Tightening torque must be 6 Nm.
Final assembly of 1+1 hot stand-by version is shown in Fig.23.
Final assembly of 1+1 frequency diversity version is shown in Fig.24.
A parasol mounting is optionally possible.
Frequencies Screw Tool Torque
from 18 to 38 GHz Allen screw M3 Allen key 2.5 mm 1 Nm
up to 15 GHz Allen screw M4 Allen key 3 mm 2 Nm
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7.4 GROUNDING
The ODU must be connected to ground making reference to details of Fig.25.
Fig.14 - Antisliding strip
Antisliding stripPlastic blocks
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ALS - MN.00164.E - 001 37
Fig.15 - 60–114 mm pole supporting plate fixing
Supporting plate
Use 15 mm wrench(32Nm torque)
Use 17 mm wrench(32Nm torque)
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38 ALS - MN.00164.E - 001
Fig.16 - Adapting kit for 219 mm pole
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ALS - MN.00164.E - 001 39
*: The flexible waveguides must not be bent more than their limit bending radius (see technical charac-
teristics attached to the waveguide itself)
Fig.17 - Possible mounting position
Antenna side flange
Support with ODU fastlocking mechanism
Reference tooth
Position of antennaside flange
Reference tooth
1
1
13 mm wrench6 Nm torque
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40 ALS - MN.00164.E - 001
Fig.18 - Possible positions of the support with ODU fast locking mechanism
Adapting kit for 219 mm pole
13 mm key (Torque = 18)
Support plate
Support with ODUfast lockingmechanism
A
B
C
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ALS - MN.00164.E - 001 41
*: The flexible waveguides must not be bent more than their limit bending radius (see technical charac-
teristics attached to the waveguide itself)
Fig.19 - Installation onto the pole of the supporting plate
Use 13 mm wrench(18 Nm torque)
Reference toothReference tooth
Hybrid with ODU fastlocking mechanism
1
1
RT1 RT2
Optional vaweguide
Flexiblewaveguide *
Use 13 mm wrench(6 Nm torque)
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42 ALS - MN.00164.E - 001
Fig.20 - Circulator for 1+1 frequency diversity systems
Polarization disk
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ALS - MN.00164.E - 001 43
Fig.21 - Band-it pole fixing
Fig.22 - ODU reference tooth
"N"
"BNC"
Ground bolt
O-ring
Tooth
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44 ALS - MN.00164.E - 001
Fig.23 - Final ODU assembly of 1+1 hot stand-by version
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ALS - MN.00164.E - 001 45
Fig.24 - Final assembly of 1+1 frequency diversity system
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46 ALS - MN.00164.E - 001
1 Bolt2 Grounding collar
Fig.25 - ODU grounding
1
2
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ALS - MN.00164.E - 001 47
8 INSTALLATION ONTO THE WALL OF THE ODU AS
WITH SEPARATED ANTENNA
8.1 INSTALLATION KIT
Following installation kits are supplied with the equipment depending on different versions:
• 1+0 system
- wall supporting plate with additional contact surface extension plates (see Fig.26)
- antenna side flange, variable as function of RF frequency (see Fig.27)- support with ODU fast locking mechanism (see Fig.27)
- connection to the antenna with flexible wave guide and possible use of a rigid elbow (optional)
(see Fig.27)
- kit for ground connection making part of ODU
• 1+1 system
- supporting plate with additional contact surface extension tools (see Fig.26)
- hybrid/circulator with ODU fast locking mechanism (see Fig.29), (hybrid for 1+1 hot stand-by
configuration, circulator for 1+1 frequency diversity configuration)
- connection to the antenna with flexible wave guide and possible use of a rigid elbow (optional)
(see Fig.27)
- kit for ground connection making part of the two ODUs.
8.2 REQUIRED TOOLS FOR MOUNTING (NOT SUPPLIED)
• N.2 13mm torque wrench
• N.1 15 mm torque wrench
• N.1 17 mm torque wrench
• N.1 3 mm allen wrench.
8.3 INSTALLATION PROCEDURE
Installation procedure proceeds according to the following steps:
• 1+0 system: installation onto the wall of the supporting plate
• 1+1 system: installation onto the wall of the supporting plate
• installation of the ODU (common to both 1+0 and 1+1 system)
• ODU grounding.
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48 ALS - MN.00164.E - 001
1+0 system – Installation onto the wall of the supporting plate
Fig.26 – Fix on the supporting plate the two supplied extension plates to increase the wall contact surface.
Fig.26 – Secure the supporting plate on the wall using the more suitable screws.
Fig.27 – Fix the flexible waveguide to the antenna side flange. Four fixing screws are available the dimen-
sions of which depend on the waveguide type. Tighten progressively and alternatively the four screws with
the following torque:
Tab.10 - Torques for tightening screws
Fig.27 – Fix the antenna side flange to the support with ODU fast locking mechanism. The flange can be
mounted horizontally (as shown in Fig.27) or vertically as function of convenience.
Fig.28 – Fix the support with ODU fast locking mechanism to the supporting plate making use of available
bolts and nuts. Fig.28 shows three possible positions. Tightening torque must be 18 Nm.
1+1 system – Installation onto the wall of the supporting plate
Fig.26 – Fix on the supporting plate the two supplied extension plates to increase the wall contact surface.
Fig.26 – Secure the supporting plate on the wall using the more suitable screws.
Fig.29 – Secure the hybrid with ODU fast locking mechanism to the supporting plate using bolt and nuts
available on the support plate. Tightening torque must be 18 Nm.
Remove the plastic cover from the hybrid flange sides.
Warning: Do not remove the foil from the hybrid flange sides.
Fig.29 – Fix the flexible waveguide to the antenna side flange. Four fixing screws are available the dimen-
sions of which depend on the waveguide type. Tighten progressively and alternatively the four screws withthe following torque:
Tab.11 - Torques for tightening screws
Warning: It is advisable to shape the waveguide flexible trunk, connecting ODU flange with antenna flange
as shown in Fig.33 This avoids possible condensate to be channelled towards the ODU flange.
Installation of the ODU
1 Bring the ODU with the two hands and position the ODU handle at the bottom side.
2 Remove the plastic cover from the ODU flange side.
Warning: Do not remove the foil from the flange. Apply silicon grease e.g. type RHODOSIL PATE
4 to the O–ring of Fig.32.
3 Position the ODU body close to the support with ODU fast locking mechanism and align the corre-
spondent flanges:
- 1+0, align ODU side flange (see Fig.32) to antenna side flange (ODU position depends on the
polarization) see Fig.27.
- 1+1 hot stand-by, align ODU side flange (see Fig.32) to hybrid side flange (see Fig.29)
- 1+1 frequency diversity, align ODU side flange (see Fig.32) to circulator side flange (see Fig.29)
Note: Hybrid and circulator differ for waveguide orientation. Circulator is shown in Fig.30.
Frequencies Screw Tool Torque
from 18 to 38 GHz Allen screw M3 Allen key 2.5 mm 1 Nm
up to 15 GHz Allen screw M4 Allen key 3 mm 2 Nm
Frequencies Screw Tool Torque
from 18 to 38 GHz Allen screw M3 Allen key 2.5 mm 1 Nm
up to 15 GHz Allen screw M4 Allen key 3 mm 2 Nm
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ALS - MN.00164.E - 001 49
4 After flange alignment, turn the ODU body approx. 30° anti–clockwise and then insert it into the
support and search for alignment between reference tooth on the support (see Fig.27 – 1+0 version
or Fig.29 – 1+1 version) and ODU body reference tooth (see detail Fig.32)
5 When alignment is achieved, turn the ODU body clockwise until “clack” is heard and the ODU rota-
tion stops.
6 Secure ODU body on the support by tightening bolts (1) (see Fig.27 – 1+0 version or Fig.29 – 1+1version). Tightening torque must be 6 Nm.
Final assembly of 1+1 hot stand-by system is shown in Fig.33.
Final assembly of 1+1 frequency diversity system is shown in Fig.34.
A parasol mounting is optionally possible.
8.4 GROUNDING
The ODU must be connected to ground making reference to details of Fig.35.
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50 ALS - MN.00164.E - 001
Fig.26 - Wall supporting plate
Extension plate
Supporting plate
M8 bolt and nut
Another possible fixation
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ALS - MN.00164.E - 001 51
Fig.27 - Support with ODU fast locking mechanism
Antenna side flange
Support with ODU fastlocking mechanism
Reference tooth
Position of antennaside flange
Reference tooth
1
1
13 mm wrench6 Nm torque
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Fig.28 - Possible mounting positions
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ALS - MN.00164.E - 001 53
Fig.29 - Installation onto the wall of the supporting plate
Use 13 mm wrench(18 Nm torque)
Reference toothReference tooth
Hybrid with ODU fastlocking mechanism
1
1
RT1 RT2
Optional waveguide
Flexiblewaveguide
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54 ALS - MN.00164.E - 001
Fig.30 - Circulator of 1+1 frequency diversity system
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ALS - MN.00164.E - 001 55
Fig.31 - Position of the ODU body:
1+0 system - depending on the polarisation.
1+1 hot stand-by system - polarisation is always vertical (handle always at the left side)
1+1 frequency diversity system - polarisation is always horizontal (handle always at the right
side)
Fig.32 - ODU body reference tooth
Vertical Horizontal
"BNC"
Ground bolt
"N"
O-ring
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Fig.33 - Final assembly of 1+1 hot stand-by version
Suncover (optional)
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ALS - MN.00164.E - 001 57
Fig.34 - Final assembly of 1+1 frequency diversity version
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58 ALS - MN.00164.E - 001
1 Bolt
2 Earth cable collar
Fig.35 - ODU grounding
1
2
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ALS - MN.00164.E - 001 59
9 INSTALLATION ONTO THE POLE OF THE ODU AS
WITH INTEGRATED ANTENNA
9.1 FOREWORD
The installation onto the pole of the ODU with integrated antenna concerns both 1+0 and 1+1 systems.
9.2 INSTALLATION KIT
Following installation kits are supplied with the equipment depending on different systems:
1+0 system
• 60 to 114 mm pole mounting kit consisting of:
- centering ring and relevant screws (see Fig.36)
- antislide strip (see Fig.37)
- pole support system and pole fixing brackets (see Fig.38)
- ODU with O–ring and devices for ground connection
1+1 system
• pole mounting kit from 60 to 114 mm for 1+1 consisting of:
- centering ring and relevant screws (see Fig.36)
- antislide strip (see Fig.37)
- pole support system and pole fixing brackets (see Fig.38)
• hybrid for hot stand-by version (see Fig.47) or circulator for frequency diversity version (see Fig.48)
• polarization twist disk (see Fig.50)
• 2 ODUs with O–rings and devices for ground connection.
9.3 REQUIRED TOOLS FOR MOUNTING (NOT SUPPLIED)
• N.2 13 mm torque wrench
• N.1 15 mm torque wrench
• N.1 17 mm torque wrench
• N.1 3 mm allen wrench.
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60 ALS - MN.00164.E - 001
9.4 INSTALLATION PROCEDURE
Installation procedure proceeds according with the following steps:
1+0 system
1 installation onto the pole of the support system
2 installation of the antenna
3 installation of ODU
4 antenna aiming
5 ODU grounding
1+1 system
1 installation onto the pole of the support system
2 installation of the antenna
3 installation of hybrid/circulator circuit
4 installation of the two ODUs
5 antenna aiming
6 ODU grounding.
9.4.1 Installation onto the pole of the support system and the antenna
Fig.36 – Set the antenna in such a position as to be able to operate on its rear side. Locate the five threaded
holes around antenna flange. Mount centering ring onto antenna flange and tight it with 3 calibrated bolts.
Caution: centering ring should be mounted so that the screws do not stick out.
Define if the antenna will be mounted with vertical or horizontal polarization. Check that free drain holes
stay at bottom side. Mount bolt type M10x30, in position A leaving it loose of 2 cm approx. With horizontal
polarization mount bolt type M10x30 in position D, leaving it loose of 2 cm approx.
Fig.37 – Mount antislide strip onto the pole. Place blocks as in Fig.37 following antenna aiming direction.
Tighten the strip with screwdriver.
Fig.38 – Mount pole supporting system with relevant pole fixing brackets following antenna aiming direc-
tion as indicated by arrow. Antislide strip should result at the center of supporting plate. Supporting system
should lean against antislide clamp with the tooth as in Fig.39.
Position the antenna in such a way that bolt in position A or D of Fig.36 cross through hole E of Fig.40.
Secure the support system to the pole by means of the pole fixing brackets and relevant fixing bolts.
Fig.41 – Rotate the antenna body until the remainder three antenna holes coincide with the three support
holes. Secure the antenna to the support by thightening the relevant passing through bolts.
9.4.2 Installation of ODU
1+0 system
1 Apply silicon grease e.g. RHODOSIL PATE 4” to the O–ring (4) of Fig.44 by protecting finger hands
with gloves.
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ALS - MN.00164.E - 001 61
2 Bring the ODU with the two hands and position the ODU handle at the bottom side. The ODU handle
can assume position of Fig.42 depending on the polarization.
3 Position the ODU body near the support system and align ODU side flange to antenna side flange
(see Fig.43).
With respect to the flange alignment, turn the ODU body approx. 30° anti–clockwise and then insert
the ODU body into the support and search for alignment between reference tooth on the support
(see Fig.43) and ODU body reference tooth (see detail of Fig.44).
4 When alignment is achieved, turn the ODU body clockwise until “clack” is heard and the ODU rota-
tion stops.
Fig.45 and Fig.46 show ODU housing final position for vertical and horizontal polarization respec-
tively.
5 Secure ODU body on the support system by tightening bolts (1) of Fig.43.
1+1 system
Fig.47 (hot stand-by) or Fig.48 (frequency diversity) – Apply silicon grease, type “RHODOSIL PATE 4” to
O–rings (1). Insert O–rings (1) and (6) into twist polarization disk (2).
Vertical polarization
Fix the disk on hybrid flange placing marker (4), on disk, close to V mark.
Horizontal polarization
Fix the disk on hybrid flange placing reference (4), on disk, close to H mark.
Caution: Twist disk has two planes. Take care of position marker (4) on twist disk. The position of marker
(4) plane should be in contact to hybrid like in figure. Tighten progressively and alternatively four screws
(7) with four spring washers (8) with the following torque:
Tab.12 - Torques for tightening screws
Fig.50 – Fix hybrid to support system with four bolts (1) taking care of RT1/RT2 position shown by labels
of Fig.50. Tighten progressively and alternatively four bolts (1).
In 13 and 15 GHz ODU the polarization disk is fixed to hybrid flange by means of three screws, as shown
in Fig.49.
9.4.3 ODU installation
1 Bring the ODU with the two hands and position the ODU handle at the bottom side.
2 Remove the plastic cover from the ODU flange side.
Warning: Do not remove the foil from the flange. Apply silicon grease e.g. type RHODOSIL PATE
4 to the O–ring of Fig.44.
3 Position the ODU body close to the support with ODU fast locking mechanism and align the corre-
spondent flanges:
- 1+0, align ODU side flange (see Fig.44) to antenna side flange (ODU position depends on the
polarization) see Fig.43.
- 1+1 hot stand-by, align ODU side flange (see Fig.44) to hybrid side flange (see Fig.47)
- 1+1 frequency diversity, align ODU side flange (see Fig.44) to circulator side flange (see Fig.48)
Note: Hybrid (see Fig.47) and circulator (see Fig.48) differ for waveguide orientation.
Frequencies Screw Tool Torque
from 18 to 38 GHz Allen screw M3 Allen key 2.5 mm 1 Nm
up to 15 GHz Allen screw M4 Allen key 3 mm 2 Nm
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4 After flange alignment, turn the ODU body approx. 30° anti–clockwise and then insert it into the
support and search for alignment between reference tooth on the support (see Fig.43 – 1+0 version
or Fig.47 and Fig.48 – 1+1 version) and ODU body reference tooth (see detail Fig.44)
5 When alignment is achieved, turn the ODU body clockwise until “clack” is heard and the ODU rota-
tion stops.
6 Secure ODU body on the support by tightening bolts (1) (see Fig.43 – 1+0 version or Fig.47 andFig.48 – 1+1 version). Tightening torque must be 6 Nm.
Final assembly of 1+1 hot stand-by version is shown in Fig.51.
Final assembly of 1+1 frequency diversity version is shown in Fig.52.
A parasol mounting is optionally possible.
9.5 ANTENNA AIMING
Antenna aiming for 1+0 version and 1+1 version is the same. The antenna aiming devices allow to perform
the following adjustments with respect to the starting aiming position:
- Horizontal ± 15° operating on the nut (3) shown in Fig.53, only after having loosen
the nuts (7), (8), (9), (10) of Fig.54.
- Vertical ± 15° operating on vertical adjustment worm screw (2) shown in Fig.53 only
after having loosen nuts (1), (2), (11) of Fig.54 and (4) and (5) of Fig.53.
For adjustment from 0° to +30° extract nut (1) Fig.54 and position it in hole
(4), extract nut (2) Fig.54 and position it in hole (6). Operate on vertical
adjustment worm screw (2) after having loosen nuts (1), (2), (11) of Fig.54
and (4) of Fig.53.
For adjustment from 0° to –30° extract nut (1) of Fig.54 and position it in hole
(3), extract nut (2) of Fig.54 and position it in hole (5). Operate on vertical
adjustment worm screw (2) after having loosen nuts (1), (2), (11) of Fig.54
and (4) of Fig.53.
For vertical adjustment some markers, every 10°, are available on support.
The bigger marker gives 0° starting aiming position. Once the optimum aiming
position is obtained, tighten firmly the four nuts (1), (2), (11) of Fig.54 and
(4) and (5) of Fig.53 for vertical adjustment and the four nuts (7), (8), (9),
(10) of Fig.54 for horizontal adjustment. Tighten with 15 mm wrench and
32 Nm torque.
9.6 COMPATIBILITY
The pole installation kit of the ODU unit in 1+0 and 1+1 configuration is compatible with integrated antenna
complying with SIAE standard with measures 0.2 m, 0.4 m, 0.6 m, 0.8 m of diameter.
9.7 GROUNDING
See Fig.55. On ODU grounding can be connected with the available bolt spring washer and flat washers as
shown.
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ALS - MN.00164.E - 001 63
1 Antenna
2 Calibrated Allen screw
3 Centering ring
Fig.36 - Centering ring position
A
B C
D D
A B
C
A
B
C1
2
3
Horizontal polarizationVertical polarization
3 mm Allen key2,5 Nm torque
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64 ALS - MN.00164.E - 001
1 Steel belt
2 Plastic blocks
Fig.37 - Antislide strip
1
2
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ALS - MN.00164.E - 001 65
1 Pole fixing brackets
2 Tooth
3 Bolt
4 Pole support system
Fig.38 - Support mount on pole
2
3Antenna aiming direction
15 mm wrench32 Nm torque
1
3
1
3
3 3
3
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1 Tooth
Fig.39 - Supporting system position
Fig.40 - Hole E
1
Antenna aiming direction
E
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ALS - MN.00164.E - 001 67
A, B, C, D Bolt slots
Fig.41 - Antenna installation on pole support
Fig.42 - Position of the ODU handle depending on the polarisation for 1+0. For 1+1 the polari-
sation is always horizontal. Handle at the right side.
DA
B C
15 mm wrench32 Nm torque
Vertical Horizontal
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68 ALS - MN.00164.E - 001
H: Reference tooth
Fig.43 - Support system for ODU housing and reference tooth in evidence
1
1
1
V
V
H
H
13 mm wrench6 Nm torque
1 13 mm wrench6 Nm torque
Verticalpolarization
Horizontalpolarization
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Fig.44 - ODU body reference tooth
Fig.45 - ODU housing final position for vertical polarization
"N"
"BNC"
Ground bolt
ODU side flange
Reference tooth
O-ring
30°
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Fig.46 - ODU housing final position for horizontal polarization
30°
30°
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ALS - MN.00164.E - 001 71
1 O–ring
2 Polarization twist disk
3 Hybrid mechanical body
4 Position marker of twist disk
5 Reference label for twist disk
6 O–ring
7 Allen screws
8 Spring washer
Fig.47 - Hybrid and polarization disk
2
1
3
4
5
6
7
8
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72 ALS - MN.00164.E - 001
1 O-Ring
2 Polarizer disk
3 Circulator mechanical body
4 Disk position indication
5 Disk reference
6 O-Ring
7 Allen screws with spring washers
Fig.48 - Circulator and polarization disk
7
1
2
46
5
3
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ALS - MN.00164.E - 001 73
Fig.49 - Fixing of the polarization disk (only for 13 GHz and 15 GHz)
Horizontal polarization
Vertical polarization
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1 Bolts
2 Spring washer
Fig.50 - Hybrid mount on pole support
2
1
1
13 mm wrench18 Nm torque
RT2
RT1
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Fig.51 - ODU final position for 1+1 version
Fig.52 - Final ODU assembly of 1+1 frequency diversity version
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1 Marker
2 Vertical adjustment
3 Horizontal adjustment
4 Bolt
5 Fixing nut
Fig.53 - Vertical and horizontal adjustments
12
3 4
5
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ALS - MN.00164.E - 001 77
1., 2., 3., 4. Horizontal aiming block bolts5., 6., 7. Vertical aiming block bolts
8., 11. Threaded hole for vertical aiming up to –30°
9., 10. Threaded hole for vertical aiming up to +30°
Fig.54 - Antenna aiming block
2
13
5
4
69
10
87
11
15 mm wrench32 Nm torque
15 mm wrench32 Nm torque
15 mm wrench32 Nm torque
15 mm wrench32 Nm torque
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78 ALS - MN.00164.E - 001
1 Bolt
2 Earth cable collar
Fig.55 - ODU grounding
1
2
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ALS - MN.00164.E - 001 79
10 INSTALLATION ONTO THE POLE OF THE ODU AS
WITH INTEGRATED ANTENNA (KIT V32307,
V32308, V32309)
10.1 FOREWORD
The description concerns pole mounting of ODU, in 1+0 and 1+1 system, using following installation kits:
- V32307 for ODU with frequency from 10 to 13 GHz
- V32308 for ODU with frequency from 15 to 38 GHz
- V32309 for ODU with frequency from 7 to 8 GHz
Differences regard the dimensions and the presence of the centring ring (see Fig.56):
- V32307 centring ring for antenna flange from 10 to 13 GHz
- V32308 centring ring for antenna flange from 15 to 38 GHz
- V32309 no centring ring (and relevant screws).
10.2 INSTALLATION KIT
Following installation kits are supplied with the equipment depending on different systems.
1+0 system
• 60 to 129 mm pole mounting kit:
- centring ring and relevant screws
- pole support system plus antenna (already assembled) and pole fixing brackets
- 1+0 ODU support and relevant screws
- ODU with O–ring and devices for ground connection
1+1 system
• 60 to 129 mm pole mounting kit:
- centring ring and relevant screws
- pole support system plus antenna (already assembled) and pole fixing brackets
- 1+0 ODU support
- hybrid and relevant screws
- polarization twist disk and relevant screws- 2 ODUs with O–rings and devices for ground connection.
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80 ALS - MN.00164.E - 001
10.3 REQUIRED TOOLS FOR MOUNTING (NOT SUPPLIED)
• N.1 2.5 mm Allen wrench
• N.1 3 mm Allen wrench
• N.1 6 mm Allen wrench
• N.1 13 mm spanner
• N.2 17 mm spanner.
10.4 INSTALLATION PROCEDURE
Installation procedure is listed below:
1+0 system
1 antenna polarization
2 installation of the centring ring on the antenna
3 installation of 1+0 ODU support
4 installation onto the pole of the assembled structure
5 installation of ODU
6 antenna aiming
7 ODU grounding
1+1 system
1 antenna polarization
2 installation of the centring ring on the antenna
3 installation of 1+0 ODU support
4 installation onto the pole of the assembled structure
5 installation of hybrid (hot stand-by version) or circulator (frequency diversity version)
6 installation of ODUs
7 antenna aiming
8 ODU grounding.
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ALS - MN.00164.E - 001 81
10.5 1+0 MOUNTING PROCEDURES
10.5.1 Setting antenna polarization
Fig.56 – Set the antenna in such a position to operate on its rear side. Locate the four M3 Allen screws
around the antenna flange. Unscrew them (use 2.5 mm Allen wrench) and position the antenna flange ac-
cording on: horizontal wave guide –> vertical polarization, vertical wave guide –> horizontal polariza-
tion. Screw again the four Allen screws (torque = 1 Nm).
10.5.2 Installation of the centring ring on the antenna
Fig.56 – Set the antenna in such a position to operate on its rear side. Locate the three holes around the
antenna flange. Mount the centring ring onto antenna flange and tight it with the 3 Allen screws M4 (use3mm Allen wrench, torque 2 = Nm).
10.5.3 Installation of 1+0 ODU support
Fig.56 – Mount the support onto assembled structure (pole support system plus antenna) using the four
M8 Allen screws (use 6 mm Allen wrench, torque 18 = Nm). Two of the four screws, diagonally opposed,
must be mounted with the two bushes around.
10.5.4 Installation onto the pole of the assembled structure
Fig.56 – Mount the assembled structure on the pole using the two pole fixing brackets and the four M10
screws (use 17 mm spanner, torque = 13 Nm); the heads of the screws are inserted on the antenna side,
the four nuts and the springs between nut and brackets are inserted on bracket side.
10.5.5 Installation of ODU (on 1+0 support)
Fig.57 – Apply silicon grease (e.g. RHODOSIL PATE 4”) on the O–ring by protecting fingers with gloves.Fig.58 – Bring the ODU with the two hands and position the ODU handle at the bottom side. The handle
can assume the positions shown in the figure depending on the polarization. Position the ODU body near
the support and align the wave guide of the ODU to the Wave guide of the antenna: respect to the position
of wave guide alignment, turn the ODU body approx. 30° counter–clockwise into the support and search
for matching between reference tooth on the support (see Fig.59) and reference tooth on the ODU body.
Fig.60 – When alignment of the references teeth is achieved, turn the ODU body clockwise until rotation is
stopped. In figure are shown ODU final position for both polarisations.
Fig.59 – When ODU positioning is over, secure ODU body on the support by tightening bolts (use 13mm
spanner, torque = 6Nm).
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82 ALS - MN.00164.E - 001
10.5.6 Antenna aiming
Antenna aiming procedure for 1+0 version or 1+1 version is the same.
Horizontal aiming: ±5° operating on the 17 mm nut shown in Fig.61 with a 17 mm spanner, only after
having loosen the two 17 mm nut on the pivot.
Vertical aiming: ±20° operating on the 13 mm nut shown in Fig.61 with a 13 mm spanner, only after having
loosen the three 13 mm nut on the pole support.
Once optimum position is obtained, tighten firmly all the nuts previously loosen.
10.5.7 ODU grounding
ODU grounding is achieved with:
• M8 screw without washers
• M6 screw with washeras shown in Fig.62.
10.6 1+1 MOUNTING PROCEDURES
In further page are explained all the mounting step not already discussed in paragraph ” 10.5 1+0 MOUNT-
ING PROCEDURES”
10.6.1 Hybrid/circulator installation
Fig.63 (hybrid for hot stand-by version) or Fig.64 (circulator for frequency diversity version) – The polar-
ization twist disk must be always fixed on hybrid/circulator flange.
Apply silicon grease (e.g. RHODOSIL PATE 4”) on the O–rings by protecting fingers with gloves. Bring the
polarization twist disk with the position marker down. Insert the O–ring into polarization twist disk.
Vertical polarization: fix the twist disk on hybrid/circulator flange placing the marker of the disk towards V
mark.
Horizontal polarization: fix the twist disk on hybrid/circulator flange placing the marker of the disk towards
H mark.Tighten progressively and alternatively the four screws and spring washer with following torque:
Tab.13 - Torques for tightening screws
Fig.66 – Fix hybrid body to 1+0 support with four M8 bolts (use 13 mm spanner, torque = 18 Nm), tighten
progressively and alternatively the bolts.
In case of installation of ODU at the frequency of 13 or 15 GHz, the polarizer disk joins the flange of the
hybrid with only three screws, as displayed in Fig.65.
Frequencies Screw Tool Torque
from 18 to 38 GHz Allen screw M3 Allen key 2.5 mm 1 Nm
up to 15 GHz Allen screw M4 Allen key 3 mm 2 Nm
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ALS - MN.00164.E - 001 83
10.6.2 Installation of ODUs
For both ODUs.
Fig.57 – Apply silicon grease e.g. RHODOSIL PATE 4” to the O–ring by protecting fingers with gloves.
Fig.58 – Bring the ODU with the two hands and position the ODU handle at the bottom side. The handle
can assume the positions shown in the figure depending on the polarization. Position the ODU body near
the support and align the wave guide of the ODU to the wave guide of the hybrid/circulator: respect to the
position of wave guide alignment, turn the ODU body approx. 30° counter–clockwise and then insert the
ODU body into the support. For 1+1 system the handle of the ODU is always positioned on the right. The
polarization twist disk on the hybrid/circulator matches the antenna polarization.
Fig.67 – When alignment of the reference teeth is achieved, turn the ODU body clockwise until the rotation
stops. In figure are shown ODUs final position.
Fig.59 – When ODU positioning is over, secure ODU body on the support by tightening bolts (use 17 mm
spanner, torque = 6 Nm).
WARNING: Internal codes (e.g. installation items, antennas, PCB) are here reported only as example. The
Manufacturer reserves the right to change them without any previous advice.
At the end of the installation the system will be as in Fig.67 for hot stand-by version or as in Fig.68 for
frequency diversity version.
Fig.56 - 1+0 pole mounting
Four 13mm
screws
Two bushes
1+0 support
Three 3mm Allen screws
(not present in V32309)
Centring ring(not present in V32309)
Antenna
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84 ALS - MN.00164.E - 001
Fig.57 - ODU body reference tooth
Fig.58 - Position of the ODU body:
1+0 system - depending on the polarisation.
1+1 hot stand-by system - polarisation is always horizontal (handle always at the right side)
1+1 frequency diversity system - polarisation is always vertical (handle always at the left side)
Vertical Horizontal
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ALS - MN.00164.E - 001 85
1 6 mm Allen screw
2 Bush (diagonally placed)
3 17 mm Tightening bolts (max torque = 6 Nm)
4 Reference point for horizontal polarization
5 Reference point for vertical polarization
Fig.59 - 1+0 support
1
1
2
2
3
1
1
3
4
5
4
5
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86 ALS - MN.00164.E - 001
Fig.60 - ODU final position
Fig.61 - Antenna aiming
Right handle for horizontal polarizationLeft handle for horizontal polarization
Horizontal aiming: two17mm block screws
Vertical aiming: three13mm block screws
Pole support
17mm nut for horizontaladjustment of antenna
Internal 5mm Allenscrew for vertical
adjustment of antenna
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ALS - MN.00164.E - 001 87
1 Bolt
2 Earth cable collar
Fig.62 - ODU grounding
1
2
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88 ALS - MN.00164.E - 001
1 O–ring
2 Polarization twist disk
3 Hybrid mechanical body
4 Position marker of twist disk
5 Reference label for twist disk
6 O–ring
7 Allen screws
8 Spring washer
Fig.63 - Hybrid and polarization disk
2
1
3
4
5
6
7
8
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ALS - MN.00164.E - 001 89
1 O–ring
2 Polarization twist disk
3 Hybrid mechanical body
4 Position marker of twist disk
5 Reference label for twist disk
6 O–ring
7 Allen screws
8 Spring washer
Fig.64 - Circulator and polarisation disk
7
1
2
46
5
3
8
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90 ALS - MN.00164.E - 001
Fig.65 - Fixing of the polarization disk (only for 13 GHz and 15 GHz)
Horizontal polarization
Vertical polarization
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ALS - MN.00164.E - 001 91
Fig.66 - Hybrid/circulator installation
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Fig.67 - Installation of 1+1 hot stand-by ODUs
Fig.68 - Installation of 1+1 frequency diversity ODUs
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ALS - MN.00164.E - 001 93
11 INSTALLATION ON POLE OF ODU ALS WITH SEP-
ARATED ANTENNA
11.1 TOOLS REQUIRED FOR INSTALLATION
Herebelow is the list of tools required for installation:
• pole supporting kit for 219 mm pole V46000
• pole supporting kit for 114 mm pole V46002
• pole supporting kit for 90 mm pole V46003
• 17 mm open–ended spanner (not supplied)
• 13 mm open–ended spanner (not supplied)
• 10 mm torque wrench (not supplied)
11.2 INSTALLATION PROCEDURE
According with pole diameter use the following pole supporting kit:
• 218 mm pole V46000
• 114 mm pole V46002
• 90 mm pole V46003
Refer to Fig.72 and Fig.73 (1+1), Fig.74 and Fig.75 (1+0).
1 See Fig.69 – Fix the antenna bend at 90° to the ODU antenna flange of branching inserting the
greased O–ring with silicon grease in small quantity (torque wrench 3 mm, screw M4, 2.5 Nm)
2 See Fig.70 – Install the two brackets to branching with two bolts for brackets A and B, without fix-
ing.
3 Mount the collar with the self–locking unit (see Fig.71) on bracket and pole, position them perpen-
dicular to the pole and fix them (M10 32 Nm). Fix correctly the three bolts of branching too (M10
32 Nm). See Fig.72 and Fig.73 (1+1); Fig.74 and Fig.75 (1+0).
Install bracket (1) on the pole through collar (2). The collar passes through holes (6) of the bracket.
The bracket is secured to the pole by means of plain washer (3), spring washer (4) and hexagonal
bolt (5). Fix second bracket (16) on ODU branching projection (7) through plain washer (3), spring
washer (4) and hexagonal bolt (8).
4 Lean pre–assembled structure as per point 3. on the bracket (1) already installed on the pole.
5 Secure bracket (16) on the pole by using second collar (10).
6 Secure the whole ODU body on the pole by fixing bracket (1) to two projections (9) (one for 1+0)
of the branching body through plain washer (3), spring washer (4) and bolt (8).
7 Take transceivers (13) (one in the 1+0 system) and put them in place on the branching shell by
aligning two coupling pins on the transceiver shell to coupling holes (16) of Fig.76.
Fast coupling levers (14) (see Fig.74) move in such a way to facilitate the correct mechanical cou-pling.
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8 Screw knobs (15) first by hands and then using 10 mm torque wrench to tighten the two mechanical
bodies (branching and transceiver).
Warning: set torque wrench to 4 Nm.
9 If equipment has a frequency > 10 GHz the antenna bend at 90° to connect the antenna is fixed to
branching with quick lock flange connection. You may insert it also later after the final connection
to the pole (see Fig.77).
Installation of two ODU 1+0 using the two antenna polarizations may be done in the way shown in
Fig.78.
10 Connect the grounding cord to projection (25 mm2) (15) of Fig.73 or Fig.75 from bolt (M8 18 Nm)
provided from the branching. Use a proper bug, adequate to the cable section and with fixing hole
Ø 8.2 mm. Insert bolt, washer and bug in the proper order.
See Fig.79.
11 See Fig.80, Fig.81 and Fig.82.
Use the six calibrated screws of pole supporting kit to connect the wave guide between ODU and
antenna in the proper polarization. Verify that flange O–ring are inserted correctly, a bit greased
without making dirty the flanges. Don’t damage them by fixing.
12 Fix the flexible wave guide to the pole with the proper locks.
13 Insert on ODU–IDU connecting cable the proper connector for outdoor use (N male).
14 Connect the N female connector of ODU to the above–said cable.
15 Insert the coax cable into a grounding kit near to the ODU.
16 Connect the grounding kit cable to the ground centre of the structure.
17 Label the cable with carefulness.
18 Mount the sun–screen with the four screws and relevant bushes (see Fig.83).
19 Check ODU operation using local loops.
20 After checking on both stations proceed to antenna aiming.
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ALS - MN.00164.E - 001 95
Fig.69 - ODU 1+1 and 1+0
O-ring
N. 4 screw M4 2.5 NmAllen wrench 3 mm
Antenna bend at90°
O-ring
N. 4 screw M4 2.5 NmAllen wrench 3 mm
Antenna bend at90°
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Fig.70 - ODU 1+0 and 1+1
17 mm open-endedspanner
Bolt M10 32Nm
ODU grounding point
Bracket A
Bracket B
17 mm open-endedspanner
Bolt M10 32Nm
Bracket A
Bracket B
ODU grounding point
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ALS - MN.00164.E - 001 97
Fig.71 - Collar mounting ODU 1+0 and 1+1
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98 ALS - MN.00164.E - 001
Fig.72 - Side view (1+1)
Fig.73 - Rear view (1+1)
1514
13 1 2
3 4 5
1016
12
7
6
1
15
9
3 4 8
3 4 8
11
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ALS - MN.00164.E - 001 99
Fig.74 - Side view (1+0)
Fig.75 - Rear view (1+0)
131
2
3 4 5
15
14
10
16
12
7
11
9
6 15
3 4 8
3 4 8
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100 ALS - MN.00164.E - 001
Fig.76 - Details for transceiver mounting on the branching shell
Fig.77 - Antenna bend
16
16
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Fig.78 - ODU installation (top view and front view)
Fig.79 - Grounding cord connection
Pole Φ 114 mm
n.1 ODU 1+0
n.1 ODU 1+0
Plain washer
Lug
Plain washer
Spring washer
13 mm open-ended spanner
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Fig.80 - Wave guide fixing, cable connection
13 mm open-endedspanner
Grounding cable ≥ 25 mm2
Cellflex 1/4"
Grounding kit for cable cellflex 1/4"Ground
Wave guide
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Fig.81 - Installation on pole of the outdoor unit (1+0)
Grounding cable ≥ 25 mm2.
Ground
Ground lug
Cellflex 1/4"
Grounding kit for cable Cellflex
Guide lock
Wave guide
Pol. VPol. H
Antenna tie-rods(if provided)
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Fig.82 - Installation on pole of 3 m antenna of two ODU using two polarization
Fig.83 - Sun–screen
Ground lug
Cellflex 1/4"
Ground kit Cellflex cable
Grounding cable ≥ 25 mm2
Ground
Guide lock
Wave guide
Pol. V Pol. HAntenna tie-rods
(if provided)
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12 INSTALLATION ON POLE OF THE ODU ALS WITH
INTEGRATED ANTENNA
12.1 FOREWORD
The installation on pole of the ODU with integrated antenna concerns both 1+0 and 1+1 systems.
12.2 NEEDED TOOLS
Set of accessories supplied:
• pole supporting kit (V52000)
• alignment regulating kit (V00501)
• integrated antenna
• ODU to antenna connecting kit (V52004–V520093)
• 17 mm open–ended spanners (not supplied)
• 3 mm allen wrench (not supplied)
• 22 mm open–ended spanner (not supplied)
• 27 mm open–ended spanner (not supplied)
• 10 mm torque wrench (not supplied)
• n° 1 Phillips screwdriver (not supplied).
12.3 INSTALLATION PROCEDURE
Warning: If required each attached figure shows the maximum tightening torque for the screw tightening.
Proceed as listed below:
1 Fig.84 – Verify that the antenna is polarised according to the requirements, by comparing it to the
mentioned figure. Otherwise, unscrew the four screws (2) and rotate by 90 degrees the body of the
feed (1). The four screws (2) are to be fastened at the centre of the elliptic slot that allows the po-
larisation to be fine–adjusted within ± 3 degrees.
2 Fig.85 – Set the antenna in such a position as to be able of working on its rear side.
3 Fig.85 – Take out from the unit to antenna connection kit the mechanical details shown in the figure.
Apply the O–rings of the trunk (2) a small quantity of silicon grease N00706 and then mount the
trunk on the antenna feed body. In the case of horizontal polarisation mount the twisted wave–
guide trunk.
3 The code changes as function of operating frequency and antenna polarisation.
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106 ALS - MN.00164.E - 001
4 Fig.86 – Take out the pole supporting kit. Unscrew the screws (4) and remove the supporting brack-
et (3) from the supporting ones (1) and (2).
5 Fig.87 – Install the supporting bracket (5) on the antenna (1) rear side by means of the four screws
(2), the spring washers (3) into the holes (6).
6 Fig.88 – Install the antisliding collar on the pole.
7 Fig.88 – Install on the pole the supporting brackets (5) and (6) by means of two collars (4), a nut
(1), a washer (3) and a spring washer (2). Position the brackets (5) and (6) aligned with the direc-
tion (7) of the radio beam and then tighten them to the pole in a permanent way.
8 Fig.89 – Fix the antenna to the pole inserting the pin (4) of the supporting bracket (2) into the pivot
(8) of the supporting bracket (1) and tighten lightly by means of the screws (7), spring washers
(5), washers (6).
9 Fig.89 – Unscrew the nut (3) fixed on the plate (2). Take the pins (1) and position them as shown
in the mentioned figure. Screw again the nut (3) till to have the plate (2) at beating ready to be
clamped by means of the screw (4).
10 Fig.91 (for 1+1 branching); Fig.92 (for 1+0 branching) – Place the branching projections (11) on
the bracket (1). Insert the screws (4), the spring washers (5), washers (6) without tighten them to
the end. Conduct the branching so long as the two pins of the branching flange fit in the correspond-
ing holes of the antenna flange.Warning: Before securing the two flanges via coupling ring (7) it is compulsory to apply some sil-
icon grease N00706 on the ring thread. Terminate by tightening screws (4).
11 Fig.93 (1+1) and Fig.94 (1+0) – Take transceivers (1) and put them in place on the branching shell
by aligning two coupling pins on the transceiver shell to coupling holes (10) of Fig.91 (1+1) and
Fig.92 (1+0).
Fast coupling levers (2) move in such a way to facilitate the correct mechanical coupling.
12 Fig.93 (1+1) and Fig.94 (1+0) – Screw knobs (3) first by hands and then using 10 mm torque
wrench to tighten the two mechanical bodies (branching and transceiver).
13 Fig.91 – Tighten to end screws (4).
14 Fig.93 (1+1) and Fig.94 (1+0) – Connect the grounding cord to projection (4) accessible on the
branching body (5) rear side, and tights it through M8 bolt an relevant plain an spring-washers.
15 Fig.97 – Put the covering shield in place and secure it to the branching body through the four wingscrews making part of the covering.
Note: In case of transceiver removal to get access to transceiver fixing knobs it is necessary:
- loose the covering wing screws
- lift the covering up, pull it backward and then lower it down to put it in place.
12.4 ANTENNA ALIGNMENT
The antenna alignment devices allow to perform the following adjustments with respect to the starting aim-ing position:
- horizontal: ± 15°, operating on the nut (3) shown in Fig.95, only after having loosen
the screws (2)
- vertical ± 20°, operating on the nut (1) shown in Fig.96, only after having loosen
the screws (2)
- polarisation ± 3°, unscrewing the four screws (2) shown in Fig.98, remove the screw
(4) and loosen the other four screws (3). Turn then the antenna feed body
till to optimise the polarisation. Tighten the four screws (2) the four ones
(3) and the screw (4).
Once the optimum aiming position is obtained, tighten firmly the four nuts (3) shown in Fig.95 for the hor-
izontal adjustment and the four nuts (1) shown in Fig.96 for the vertical one.
After tightening the screws, it is possible to recover the fine alignment kit for further aims.
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1 Antenna feed
2 No. 4 M4x14 screws
a Vertical polarisation
b Horizontal polarisation
Fig.84 - Checking the antenna polarisation
a b
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108 ALS - MN.00164.E - 001
1 Antenna feed
2 Wave guide trunk straight or twisted
3 N° 5 M4x14 screws
4 N° 5 flat washers
5 N° 5 spring washers
6 Drain holes
Fig.85 - Rear view of the antenna
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ALS - MN.00164.E - 001 109
1 Supporting bracket
2 Supporting bracket for pole installation
3 Supporting bracket
4 No. 4 screws
5 No. 4 spring washers
6 No. 4 flat washers
7 Teflon washer
Fig.86 - Pole supporting kit
7
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110 ALS - MN.00164.E - 001
1 Antenna
2 No. 4 M10x20 screws (max torque = 45 Nm)
3 No. 4 spring washers
4 Drain holes
5 Supporting bracket
6 Fixing holes
7 Wave–guide trunk
8 Quick–coupling flange
Fig.87 - Supporting bracket mounting on the antenna rear side
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ALS - MN.00164.E - 001 111
1 Pole mounting collars
2 Supporting bracket
3 Pole mounting supporting bracket
4 Radio beam direction
5 Antisliding collar
Fig.88 - Supporting bracket mounting
5
43
2
1
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112 ALS - MN.00164.E - 001
1 Supporting bracket
2 Supporting bracket
3 Antenna
4 Pin
5 No. 4 spring washers
6 No. 4 flat washers
7 No. 4 M10x25 screws (max torque = 45 Nm)
8 Pivot
Fig.89 - Antenna fixing to the pole
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1 Pin
2 Plate
3 Alignment adjustment nut
4 M6 screws
Fig.90 - Alignment adjustment kit mounting
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114 ALS - MN.00164.E - 001
1 Supporting bracket
2 Wave–guide trunk
3 1+1 branching
4 No. 4 screws
5 No. 4 spring washers
6 No. 4 flat washers
7 Quick–coupling ring with hexagonal nut for tightening (f 15 Ghz, max torque = 25 Nm; f 18 Ghz,
max torque = 20 Nm)
8 O–ring
9 ODU flange
10 Coupling holes
11 Branching projections
Fig.91 - 1+1 branching mounting on supporting bracket
10
10
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1 Supporting bracket
2 Wave–guide trunk
3 1+0 branching
4 No. 3 screws
5 No. 4 spring washers
6 No. 4 flat washers
7 Quick–coupling ring with hexagonal nut for tightening (f 15 Ghz, max torque = 25 Nm; f 18 Ghz,
max torque = 20 Nm)
8 O–ring
9 ODU flange
10 Coupling holes
Fig.92 - 1+0 branching mounting on supporting bracket
10
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116 ALS - MN.00164.E - 001
1 Transceiver (number 1 on the left)
2 Fast coupling levers
3 Fixing knobs with hexagonal nut for tightening (max torque = 4 Nm)
Fig.93 - ODU mounting in 1+1 configuration
4
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1 Transceiver
2 Fixing knobs with hexagonal nut for tightening (max torque = 4 Nm)
Fig.94 - ODU mounting in 1+0 configuration
4
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1 Fixed pin
2 Screws
3 Nut for horizontal alignment adjustment
Fig.95 - Horizontal alignment adjustment
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1 Nut for vertical alignment adjustment
2 Screws
Fig.96 - Vertical alignment adjustment
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Fig.97 - Outdoor unit with covering
1
Shield
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1 Antenna feed
2 No. 4 screws
3 No. 4 screws
4 No. 1 screws
Fig.98 - Checking the antenna alignment
4
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122 ALS - MN.00164.E - 001
12.5 INSTALLATION NOTE ON FREQUENCY REUSE SYSTEMS
The ALS with frequency reuse is double carrier systems with one carrier on vertical path and one carrier
on horizontal path.
One carrier can have a traffic of one STM–1 for a total of 2xSTM–1 or 2xSTM–1 for a total of 4xSTM–1traffic.
For frequency reuse systems to assume the achievement of guaranteed performances of XPIC functional-
ities some care shall be taken for IDU–ODU cabling.
Antennas
The antennas will be double polarization antennas.
RF channel
RF channel shall be the same for vertical polarization path and horizontal polarization path.
J0
J0 SOH byte shall be different on vertical polarization path and horizontal polarization path.
ATPC
Low ATPC level shall be 15 dB higher than BER 10–6 threshold (see chapter “22 SYSTEM CHARACTERIS-
TICS”).
IDU–ODU cable
The IDU–ODU cable length difference shall be:
• Cable from RT1A to RIM1A and cable from RT1B to RIM1B (see Fig.99 and Fig.100) shall not differ
more than:
- 3 meters for 2xSTM1 links 32QAM
- 3 meters for 2xSTM1 links 128QAM
- 1,5 meters for 4xSTM1 links 128QAM
• IDU RIM to RIM cable. The cables RIM1A to RIM1B and RIM2A to RIM2B shall be SMA to SMA cables
– F01693 and connected as Fig.101 and Fig.102.
Additional notes
On ALS with XPIC some manual operations create other manual operation, for more information please
refer to chapter “16.4 NOTES ON MANUAL OPERATIONS ON ALS WITH XPIC (SDH IDU MODULAR)”.
On ALS with XPIC a fault management procedure is used to protect the not alarmed path, for more infor-
mation please refer to chapter “18.3 FAULT MANAGEMENT PROCEDURE FOR FREQUENCY REUSE SYSTEMS
WITH XPIC”.
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Fig.99 -
Fig.100 -
Fig.101 - XPIC SMA to SMA cables
Fig.102 - XPIC SMA to SMA cables
RIM1A
RIM1B
RIM2A
RIM2B
RT1A
RT1B
RT2A
RT2B
RIM1A
RIM1B
RT1A
RT1B
-+
X X
XX
+-
W.S .1 W.S. 2 V11
ONONONON
FAIL
1 2 3 4
REM
R
USER IN/OUTRS232LCT
TEST
ODUIDU
Q3
XX
+-
RIM
RIM
1
2
2
1
RIM
RIM-
+X X
XX
+-
RIM
RIM
1
2
2
1
RIM
RIM-
+X X
IDUODU
REMTEST
LCT RS232 USER IN/OUT
Q3
R
V11W.S.2W.S.1
STM1-4STM1-3STM1-2STM1-1
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13 INSTALLATION NOTE ON FREQUENCY REUSE
SYSTEMS
13.1 Frequency reuse
The ALS with frequency reuse is double carrier systems with one carrier on vertical path and one carrier
on horizontal path.
One carrier can have a traffic of one STM-1 for a total of 2xSTM-1 or 2xSTM-1 for a total of 4xSTM-1 traffic.
For frequency reuse systems to assume the achievement of guaranteed performances of XPIC functional-
ities some care shall be taken for IDU-ODU cabling.
13.2 Characteristics
Antennas
The antennas will be double polarization antennas.
RF channel
RF channel shall be the same for vertical polarization path and horizontal polarization path.
J0
J0 SOH byte relevant to vertical polarization path shall be different from the one relevant to horizontal po-
larization path.
ATPC
Low ATPC level shall be 15 dB higher than BER 10-6 threshold (see chapter “ 22 SYSTEM CHARACTERIS-TICS”).
IDU-ODU cable
The IDU-ODU cable length difference shall be:
• Cable from RT1A to RIM1A and cable from RT1B to RIM1B (see Fig.103 and Fig.104) shall not differ
more than:
- 3 meters for 2xSTM1 links 32QAM
- 3 meters for 2xSTM1 links 128QAM
- 1,5 meters for 4xSTM1 links 128QAM
• IDU RIM to RIM cable. The cables:
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- RIM1A to RIM1B
- RIM2A to RIM2B
shall be SMA to SMA cables - F01693 and connected as Fig.105 and Fig.106.
Additional notes
On ALS with XPIC some manual operations create other manual operation, for more information please
refer to chapter “16.4 NOTES ON MANUAL OPERATIONS ON ALS WITH XPIC (SDH IDU MODULAR)”.
On ALS with XPIC a fault management procedure is used to protect the not alarmed path, for more infor-
mation please refer to chapter “18.3 FAULT MANAGEMENT PROCEDURE FOR FREQUENCY REUSE SYSTEMS
WITH XPIC”.
Fig.103 - IDU-ODU cables
Fig.104 - IDU-ODU cables
RIM1A
RIM1B
RIM2A
RIM2B
RT1A
RT1B
RT2A
RT2B
RIM1A
RIM1B
RT1A
RT1B
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Fig.105 – Connection cables
Fig.106 – Connection cables
-+
X X
XX
+-
W.S.1 W.S.2 V11
ONONONON
FAIL
1 2 3 4
REM
R
USER IN/OUTRS232LCT
TEST
ODUIDU
Q3
XX
+-
RIM
RIM
1
2
2
1
RIM
RIM-
+X X
XX
+-
RIM
RIM
1
2
2
1
RIM
RIM-
+X X
IDUODU
REMTEST
LCT RS232 USER IN/OUT
Q3
R
V11W.S.2W.S.1
STM1-4STM1-3STM1-2STM1-1
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14 ODU AS SUBSTITUTION FOR 1+1 FREQUENCY
DIVERSITY SYSTEM
14.1 1+1 FREQUENCY DIVERSITY SYSTEM: SUBSTITUTION OF ODU
In 1+1 frequency diversity system the separation of an ODU from circulator support causes a service in-
terruption on the other ODU too.
The following procedure must be followed order to avoid this interruption (see Fig.107):
1 locate the ODU (1) to substitute, loose the bolts (4), insert the guillotine shutter (3) in the slot (2)until the end
2 rotate and extract the ODU (1) as usual (see “System Installation” chapter)
3 insert the new ODU as usual (see “System Installation” chapter)
4 extract the shutter (3) from slot (2), tighten the bolts (4).
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1 ODU to be substituted
2 Slot
3 Guillotine shutter
4 Bolts (6 Nm torque)
Fig.107 - Substitution of ODU in 1+1 frequency diversity system
3
1
2
4
4
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Section 3.LINE-UP AND MAINTENANCE
15 PROGRAMMING AND SUPERVISION
15.1 GENERAL
The radio equipment was designed to be easily programmed and supervised.
The following tools are implemented to the purpose:
• SCT Subnetwork Craft Terminal + LCT Local Craft Terminal. They are used for remote and local con-
trol of a subnetwork consisted of a maximum of 100 equipment.
• NMS5-UX Network Management. It is used for the remote control of an entire network consisted of
different SIAE equipment.
For details refer to relevant documentation. SCT/LCT documentation is available as help on-line.
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16 LINE-UP OF THE RADIO HOP
16.1 LINE-UP OF THE RADIO HOP
The line-up consists of the following steps:
• on site radio terminal installation (perform user connections and ODU installation as described in
the relevant chapters)
• equipment switch-on (operate the ON/OFF switch on the IDU front)
• antenna alignment for maximum received RF signal level
• network element configuration
• check measurements.
16.1.1 Antenna alignment and received field measurement
Purpose of antenna alignment is to maximize the RF received signal level.
Proceed as follows:
• connect a multimeter to BNC connector on the ODU for AGC measurement
• adjust antenna pointing as soon as the maximum AGC voltage value is achieved.
16.1.2 Network element configuration
A factory default address is assigned to each network element that must normally be re-configurated on
site following the network administrator rules. To the purpose it is required to connect the PC, where the
SCT/LCT program has been installed, to the network interface port. This has to be done via serial cable
(connector RS232) or USB cable (connector LCT).
Warning: the checks that follow require a good knowledge of the program use.
The description of each menu and relevant windows are given by the program itself as help on line.
Run the program and perform the connection to equipment by choosing from menu “Option” the connec-
tion made via serial cable or via LAN.
Perform the login to the equipment by entering:
• Equipment IP address 4
• User ID (default: SYSTEM)
• Password (default: SIAEMICR)
Proceed to re-configurate the network element according with the following procedure:
4 If the Ethernet interface IP address is not known, select the serial cable connection where the IP ad-
dress is shown automatically.
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• IP Address: select menu “Equipment” from the menu bar and then Communication Setup->Port
Configuration. Enter the required port addresses in the available communication ports. Press ? for
details.
• Routing Table and Default Gateway: select menu “Equipment” from the menu bar and then Com-
munication Setup-> Routing Table: enter the routes or default gateway if necessary. Press ? for
details.
Warning: the routing policy depends on the routing type: manual IP/OSPF/Is-IS. The relevant
routing rules must be normally given by network administrator.
• Remote Element Table: select menu “Tools” from menu bar and then Subnetwork Configuration
Wizard. Station name and remote element table must be assigned following description of the con-
textual help on-line (?).
• Agent IP Address: select menu “Equipment” and then “Properties”. Assign the address in accord-
ance to the address of the remote element you want to reach.
10.1.3Radio checks
It is advisable to perform the following measurements to check the correct operation of the radio hop.
To the purpose make use of the SCT/LCT program and relevant help on line.
The measurements list of the following:
• transmitted power
• received power
• RF frequency
• BER measurement.
All these checks make use of the SCT/LCT program.
• Transmitted power, received RF level, RF frequency
- Run SCT/LCT program and then perform the connection to the equipment you want to check.
- Make double click on the select equipment until main RADIO window is shown.
- On top of the window Tx/Rx power and frequency values are displayed. In case of Tx power and
frequency setup proceed to Branch 1/2 and Power/Frequencies submenus.
• BER measurement
- RUN SCT/LCT program and then perform the connection to the equipment you want to check.
- Make double click on the selected equipment until main RADIO window is shown.
- On the left side select BER 1/2 measure. In alternative it is possible to use the PRBS function if
one line is free.
- Perform the BER measurement and check that values comply with the requirements.
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16.2 LASER FUNCTIONALITY TEST
16.2.1 Switch-on procedure
• Connect input to output with a fibre optic cable
• Program and look for STM-1 East/West window
• Click on STM-1 West (East) of LCT program until relative window is displayed
• Set Automatic Shut-down to “auto” mode into SCT/LCT program
• Check that Led “ON" is ON.
In case of opposite situation is shown, wait for expiration of "x" time present in "Auto Restart Time" box
(range from 60 to 300 sec.).
Note: The laser is switched on every "x" seconds for 2 seconds thus permitting the opposite side laser to
receive and consequently the two transmitters to be switched on.
If faster laser switch-on is required, set "automatic shut down" to "manual" mode and then press "restart"
to send immediately the switch-on control.
Note: if laser power measurement is required, set "automatic shut-down" to "test" mode, preset test time
from 2 to 100 sec. and then press "Restart" to activate the test.
16.2.2 Automatic laser shut-down check
• Set automatic shut-down to “auto” mode
• Remove the optical cable from Rx West (East) side the optical cable and check that Led “ON” goes
off.
16.3 LINE-UP OF RADIO HOP FOR FREQUENCY REUSE SYSTEMSWITH XPIC (SDH IDU MODULAR)
Line-up consists of the following steps:
• Line-up of radio hop (as described in relevant chapter)
• Additional line-up operations for XPIC
16.3.1 Additional line-up operations for XPIC
Additional line-up steps are:
1 Check fade margin on both paths (horizontal or vertical) while making the fade margin on one path
the other should be switched off. Measurements shall be done both ends.
2 Verify decoupling between Tx vertical and receiver horizontal and vice-versa, switching off the
transmitter relative to Rx, see Fig.108.
- Step 1: Tx (H) off into side B, verify Tx (V) into side B decoupling to Rx (H) into site A
- Step 2: Tx (V) off into site B, verify Tx (H) into site B decoupling to Rx (V) into site A
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- Step 3: Tx (H) off into side A, verify Tx (V) into side A decoupling to Rx (H) into site B
- Step 4: Tx (V) off into side A, verify Tx (H) into side A decoupling to Rx (V) into site B.
3 Connect everything to have normal operation with XPIC
4 Start from everything perfectly running:
- set ATPC off on all Tx
- set Tx maximum power in all transceiver
- insert an attenuation equal to antenna XPD. Practically decrease output power of 17 dB on a
transmitter by SCT/LCT. Verify that in this situation the corresponding receiver doesn’t have er-
rors. To verify XPIC functionality, disconnect XPIC Rx cable and verify that there are errors in
the receiver. Restore output power of Tx. Do the same on all receivers.
Fig.108 – Decoupling verify - Step 1
16.4 NOTES ON MANUAL OPERATIONS ON ALS WITH XPIC (SDHIDU MODULAR)
On ALS with XPIC some manual operations create automatically other manual operations. The purpose is
to give a correct functionality of loop IF, loop RF and save traffic on the other path where there is no forcing.
16.4.1 Management of automatic manual operations
The manual operations discussed into this document are:
• loop RF
• loop IF
• carrier only
• Tx off
• RT PSU off.
Tx
Rx
Tx
Rx
Tx
Rx
Tx
Rx
V
H
V
H
Site A Site B
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16.4.2 Automatically activated manual operations
For configuration with XPIC in systems 1+0 the Tab.14 details for any manual operation which are the au-
tomatically activated manual operations in local equipment and remote equipment.
Tab.14 – Configuration: XPIC 1+0
Local terminal Remote terminal
Manual operationAutomatically activated manual
operation
Automatically activated manu-
al operation
Radio-1A
Loop RF
Rim 1A Xpic Input Disable
Rim 1B Xpic Input DisableRadio -1A transmitter off
Radio-1BLoop RF
Rim 1A Xpic Input DisableRim 1B Xpic Input Disable
Radio -1B transmitter off
Radio-1A
Loop IF
Rim 1A Xpic Input Disable
Rim 1B Xpic Input DisableRadio -1A transmitter off
Radio-1B
Loop IF
Rim 1A Xpic Input Disable
Rim 1B Xpic Input DisableRadio -1B transmitter off
Radio-1A
Carrier onlyRim 1B Xpic Input Disable
Radio-1B
Carrier only
Rim 1A Xpic Input Disable
Radio-1A
Tx off Rim 1B Xpic Input Disable
Radio-1B
Tx off Rim 1A Xpic Input Disable
Radio-1A
RT PSU off Rim 1B Xpic Input Disable
Radio-1A transmitter off
Rim 1B Xpic Input Disable
Radio-1B
RT PSU off Rim 1A Xpic Input Disable
Radio-1B transmitter off
Rim 1A Xpic Input Disable
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Tab.15 – Configuration: XPIC, 1+1, Hot stand-by/Hot stand-by, Space Diversity
Local termination Remote terminal
Manual operationAutomatically activated manual
operation
Automatically activated manu-
al operation
Radio-1A
Loop RF
Rim 1A Xpic Input Disable
Rim 2A Xpic Input Disable
Rim 1B Xpic Input Disable
Rim 2B Xpic Input Disable
Radio-1A transmitter off
Radio-2A transmitter off
Radio-2A
Loop RF
Rim 1A Xpic Input Disable
Rim 2A Xpic Input Disable
Rim 1B Xpic Input Disable
Rim 2B Xpic Input Disable
Radio-1A transmitter off
Radio-2A transmitter off
Radio-1B
Loop RF
Rim 1A Xpic Input Disable
Rim 2A Xpic Input Disable
Rim 1B Xpic Input Disable
Rim 2B Xpic Input Disable
Radio-1B transmitter off
Radio-2B transmitter off
Radio-2B
Loop RF
Rim 1A Xpic Input Disable
Rim 2A Xpic Input Disable
Rim 1B Xpic Input Disable
Rim 2B Xpic Input Disable
Radio-1B transmitter off
Radio-2B transmitter off
Radio-1A
Loop IF
Rim 1A Xpic Input Disable
Rim 1B Xpic Input Disable
Radio-2A
Loop IF
Rim 2A Xpic Input Disable
Rim 2B Xpic Input Disable
Radio-1B
Loop IF
Rim 1A Xpic Input Disable
Rim 1B Xpic Input Disable
Radio-2B
Loop IF
Rim 2A Xpic Input Disable
Rim 2B Xpic Input Disable
Radio-1ACarrier only
If Tx 1A local is active:Rim 1B Xpic Input Disable
Rim 2B Xpic Input Disable
Radio-2A
Carrier only
If Tx 2A local is active:
Rim 1B Xpic Input Disable
Rim 2B Xpic Input Disable
Radio-1B
Carrier only
If Tx 1B local is active:
Rim 1A Xpic Input Disable
Rim 2A Xpic Input Disable
Radio-2B
Carrier only
If Tx 2B local is active:
Rim 1A Xpic Input Disable
Rim 2A Xpic Input Disable
Radio-1ATx off
If Tx 1A local is active:
Rim 1B Xpic Input DisableRim 2B Xpic Input Disable
Radio-2A
Tx off
If Tx 2A local is active:
Rim 1B Xpic Input Disable
Rim 2B Xpic Input Disable
Radio-1B
Tx off
If Tx 1B local is active:
Rim 1A Xpic Input Disable
Rim 2A Xpic Input Disable
Radio-2B
Tx off
If Tx 2B local is active:
Rim 1A Xpic Input Disable
Rim 2A Xpic Input Disable
Radio-1A
RT PSU off Rim 1B Xpic Input Disable
If Tx 1A local is active:
Rim 1B Xpic Input DisableRim 2B Xpic Input Disable
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Radio-2A
RT PSU off Rim 1B Xpic Input Disable
If Tx 2A local is active:
Rim 1B Xpic Input Disable
Rim 2B Xpic Input Disable
Radio-1B
RT PSU off Rim 1A Xpic Input Disable
If Tx 1B local is active:
Rim 1A Xpic Input Disable
Rim 2A Xpic Input Disable
Radio-2B
RT PSU off Rim 2A Xpic Input Disable
If Tx 2B local is active:
Rim 1A Xpic Input Disable
Rim 2A Xpic Input Disable
Local termination Remote terminal
Manual operationAutomatically activated manual
operation
Automatically activated manu-
al operation
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Tab.16 – Configuration: XPIC, 1+1, Frequency Diversity/Frequency Diversity, Space Diversity
Local termination Remote terminal
Manual operationAutomatically activated manual
operation
Automatically activated manu-
al operation
Radio-1A
Loop RF
Rim 1A Xpic Input Disable
Rim 1B Xpic Input DisableRadio-1A transmitter off
Radio-2A
Loop RF
Rim 2A Xpic Input Disable
Rim 2B Xpic Input DisableRadio-2A transmitter off
Radio-1B
Loop RF
Rim 1A Xpic Input Disable
Rim 1B Xpic Input DisableRadio-1B transmitter off
Radio-2B
Loop RF
Rim 2A Xpic Input Disable
Rim 2B Xpic Input DisableRadio-2B transmitter off
Radio-1A
Loop IF
Rim 1A Xpic Input Disable
Rim 1B Xpic Input DisableRadio-1A transmitter off
Radio-2A
Loop IF
Rim 2A Xpic Input Disable
Rim 2B Xpic Input Disable
Radio-2A transmitter off
Radio-1B
Loop IF
Rim 1A Xpic Input Disable
Rim 1B Xpic Input DisableRadio-1B transmitter off
Radio-2B
Loop IF
Rim 2A Xpic Input Disable
Rim 2B Xpic Input DisableRadio-2B transmitter off
Radio-1A
Carrier onlyRim 1B Xpic Input Disable
Radio-2A
Carrier onlyRim 2B Xpic Input Disable
Radio-1B
Carrier onlyRim 1A Xpic Input Disable
Radio-2B
Carrier only Rim 2A Xpic Input Disable
Radio-1A
Tx off Rim 1B Xpic Input Disable
Radio-2A
Tx off Rim 2B Xpic Input Disable
Radio-1B
Tx off Rim 1A Xpic Input Disable
Radio-2B
Tx off Rim 2A Xpic Input Disable
Radio-1A
RT PSU off Rim 1B Xpic Input Disable
Radio-1A transmitter off
Rim 1B Xpic Input Disable
Radio-2ART PSU off
Rim 2B Xpic Input Disable Radio-2A transmitter off Rim 2B Xpic Input Disable
Radio-1B
RT PSU off Rim 1A Xpic Input Disable
Radio-1B transmitter off
Rim 1A Xpic Input Disable
Radio-2B
RT PSU off Rim 2A Xpic Input Disable
Radio-2B transmitter off
Rim 2A Xpic Input Disable
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17 PERIODICAL CHECKS
17.1 GENERAL
Periodical checks are used to check correct operation of the radio equipment without the presence of any
alarm condition.
The SCT/LCT programs running on the PC are used for the purpose.
17.2 CHECKS TO BE CARRIED OUT
The following checks must be carried out:
• check of the transmitted power;
• check of the received field strength (the reading must match the value resulting from hop calcula-
tions);
• check of the bit error ratio and the hop performances.
For checking procedures, please refer to SCT/LCT program and relevant help-on line.
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18 TROUBLESHOOTING
18.1 GENERAL
The equipment consists of the following replaceable parts:
• ALS SDH with IDU SDH compact
- IDU
- ODU
• ALS SDH with IDU SDH modular
- LIM
- CONTROLLER
- RIM
- ODU.
Purpose of the troubleshooting is to pinpoint the faulty part and replace it with spare.
Warning: the replacement of the faulty CONTROLLER module with spare causes the spare CONTROLLER
to be re-programmed.
18.2 TROUBLESHOOTING PROCEDURE
Troubleshooting procedure is used both with IDU SDH modular equipment and IDU SDH compact equip-
ment. In case of IDU SDH compact equipment, replace the whole IDU if the troubleshooting detects a fail-
ure on one of the following modules:
• LIM
• CONTROLLER
• RIM.
Troubleshooting starts as soon as one of the following alarm condition: alarm LED “ON” on the IDU front
panel or alarm messages are displayed by managers SCT/LCT.
Two methods are used to troubleshoot the cause of fault:
• loop facilities
• alarm message processing using the manager SCT/LCT
18.2.1 Loop facilities
The equipment is provided with different loops with the aid to locate the faulty equipment and then the
faulty module the equipment consists of.Warning: the majority of loops causes the traffic to be lost.
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The available loops are the following:
• local tributary loops: usually used to test the cables interfacing the equipment upstreams
• remote tributary loops: usually used to test the two direction link performance making use of an
unused tributary (if available).
• baseband loop: it permits to test the LIM circuits• IDU loop: it permits to test the complete IDU
• RF loop: it permits to test the complete radio terminal
18.2.2 Alarm messages processing
When an alarm condition occurs, the equipment generates a number of alarm messages that appear on
the SCT windows ie: log history area and equipment view current alarm.
Investigation on the alarm message meaning permits to troubleshoot the faulty module.
Alarm message organisation
The alarms (traps) are organized as alarm grouping relevant to a specific functions performed by the equip-
ment.
The alarm grouping is available only in the view current alarm submenu.
What follows is the list of the alarm grouping:
• COMMON - alarms which are not related to a specific part of the equipment but relevant to the link
as DCC radio link alarm or link telemetry fail. If these alarms are ON the link is lost. Investigation
must be made on a possible bad propagation or equipment failure. See the condition of the others
alarm grouping.
• LIM - This grouping may generate alarms for the following causes:
- external fault: tributary signal loss
- LIM failure: i.e. loss of the power supply inside the module or clock loss
- alarm that can be propagated by RIM or ODU modules as baseband Rx alarm. The Baseband
loop permits to discover if the cause of this alarm activation is external or internal to the LIM.
If yes the module must be replaced.
• RIM - This grouping may generate alarms for the following causes:
- external fault: demodulator fail alarm and local ODU alarm are generated when the ODU be-
comes faulty.
- RIM failure - power supply alarm along with cable short/open alarms or modulator/demodulator
alarms are activated.
• RT - This grouping may generate alarms for the following causes:
- external fault: Rx power low alarm is generated given by a bad propagation or by a faulty remote
terminal.
- ODU failure: PSU fail alarm or RF VCO alarm or RT IF alarm is activated. If this happens, replace
the ODU.
• UNIT - This grouping generates alarms when one of the units, the equipment consists of, is faulty
or does not respond to the controller polling. Replace the faulty unit.
• CONTROLLER - There is not an alarm message relevant to a controller module failure. An alarm con-
dition causes Led IDU to steady lights up.
Warning: The replacement of controller module requires the spare to be realigned.
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18.3 FAULT MANAGEMENT PROCEDURE FOR FREQUENCY REUSESYSTEMS WITH XPIC
The Fault Management Procedure (FMP) is used into 1+0 systems with a vertical and an horizontal carriergiving a total traffic of 2xSTM-1 or 4xSTM-1.
Purpose of FMP is to identify a malfunction caused by equipment failure and protect radio path horizontal
or vertical where there is no problem.
FMP will distinguish between alarm coming from external causes (e.g. fading) and alarms coming from a
defect into equipment.
Tx Power Control can be in Automatic or Manual mode. Low ATPC threshold shall be 15 dB higher than BER
= 10-6 Prx level. See chapter "System Characteristics ".
FMP is used into 1+0 systems in case of a single hardware failure.
In 1+1 systems a single hardware failure is protected by doubled configuration structure.
FMP switches off automatically the alarmed path protecting the not alarmed path.
Once the decision is taken it is permanent and only an operator with SCT/LCT program or NMSUX can resetthe status.
18.3.1 Manual operations activated by FMP
FMP can activate the following manual operations:
• remote Tx off
• local Xpic disable
• disable FMP.
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19 EQUIPMENT CONFIGURATION UPLOAD/SAVE/
DOWNLOAD. PARAMETER MODIFICATION AND
CREATION OF VIRTUAL CONFIGURATIONS
19.1 SCOPE
This chapter describes the procedure to create configuration files.
Equipment configuration files must be used in case of replacing a faulty CONTROLLER module with the
spare. To the purpose it is necessary to upload, from each equipment the network consists of, equipmentconfigurations and save them on three configuration files. It is advisable to do it upon the first installation.
Configuration file download on the spare CONTROLLER permits to restore previous operating condition. It
is also possible to create virtual configuration without being connected to equipment.
19.2 PROCEDURE
To configure the spare CONTROLLER the following must be uploaded/saved on the file/downloaded:
• General equipment configuration
• Addresses and routing table
• Remote element table
To do it, run the SCT/LCT program (see relevant documentation available on line) until "Subnetwork Craft
Terminal" application window is displayed.
19.2.1 General equipment configuration
Upload and save
1 Select Open Configuration Template from Tools menu following this path: Tools Æ Equipment
Configuration Wizard Æ File Æ Open Configuration Template.
The system will show Template Selection window.
2 Choose from Template Selection window the type of equipment and version (for instance radio PDH
AL: 2x2, 4x2, 8x2, 16x2 Mbit/s) from which you want to make the upload.
3 Press OK.
The system will display the Configuration Wizard window referring to the selected type of equipment
and version (example: radio ALS: STM-1)
4 Press Upload push button and select Get Current Type Configuration from Equipment .
The system will display the Upload Configuration File window. The window will show the equipment
list.
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5 Select the equipment you wish to upload a configuration file from (normally the local equipment)
by activating the relevant box.
6 Press OK.
The system displays the Communication Status window where is pointed out:
- the operation status: upload in progress/complete.- errors area: where error messages relevant to possible abort of the operation are displayed.
At the end of the operation by pressing OK, the system displays, the uploaded equipment param-
eters present into the Configuration Wizard window.
7 Save the uploaded configuration into a file by selecting Save File As command from File Save
Save File As.
The system will display Save This Config. File.
Type the file name into the proper box (with "cfg" extension) and set the path to be used to save
the file.
8 Press Save push button to finish.
Download
After having installed the spare LIM proceed as follows:
1 Select Open File from Tools menu following this path: Tools menu Equipment Configuration
Wizard File Open Open File.
The system will display Select a Config. File window.
2 Select the wanted file and open it by pushing Open push button. The system will display the file
content.
3 Press Download push button and select Configure Equipment as Current File.
4 Activate the box relevant to the equipment you wish to download configuration file to (normally the
local equipment) and select Configure Equipment as Current File.
5 Press OK.
The system displays the Communication Status window where is pointed out:
- the operation status: upload in progress/completed
- errors area: where error messages relevant to possible abort of operation are displayed.
6 Press OK to finish.
19.2.2 Addresses and routing table
Upload and save
1 Select Open Address Configuration Template from Tools menu following this path: Tools menu
Equipment Configuration Wizard File Open Open Address Configuration Template.
The system will show the mask of the Address Configuration Template.
2 Press Upload push button and select Get Current Type Configuration from Equipment.
The system will display the Upload Configuration File window.
3 Select the equipment you wish to upload a configuration from (normally the local equipment).
4 Press OK.
The system displays the Communication Status window where is pointed out:
- the operation status: upload in progress- errors area: where error messages relevant to possible abort of the operation are displayed.
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At the end of the operation, the system displays, the equipment parameter present into the Con-
figuration Wizard window.
5 Save the uploaded configuration into a file by selecting Save File As command from File Save
Save File As
The system will display the Save This Config. File window. Into the proper boxes type the file name
(with "cfg" extension) and set the path to be used to save the file.
6 Press Save push button to finish.
Download
1 Select Open File command from Tools menu following this path: Tools Equipment Configuration
Wizard File Open Open File.
The system will display Select a Config. File window.
2 Select the wanted file and open it by pushing Open push button. The system will display the pa-
rameters contained into the file.
3 Press Download push button and select Configure Equipment as Current File.
4 Activate the box relevant to the equipment you wish to download configuration file to (normally the
local equipment).
5 Press OK.
6 The system will display Download Type Selection window. Activate boxes IP port addresses config-
uration e Routing table. If OSPF facility is enabled, you can only select Standard (IP/Communi-
cation/OSPF) Settings.
7 Press OK.
The system will show a warning indicating the possibility to proceed the download or not.
8 Press OK.
The system will show the Download in progress.
9 At the end of the download will be shown the file content.
19.2.3 Remote Element Table
Upload and save
1 Select window Subnetwork Configuration Wizard from menu Tools.
2 Select equipment Local from Actual Configuration Area and then press Retrieve. In New configu-
ration area is shown the list of remote equipment included the local.
3 Press Save to file. The system will show window Save remote element configuration file.
4 Save the file with Rel extension and then press Save to finish.
Download
1 Select Subnetwork Configuration Wizard from menu Tool .
2 Press Read from file and then select the desired file (with Rel extension).
3 Press Open push button and then the system will show the file content into the New Configuration
Area.
4 Select into the Actual configuration area the equipment you desire to download, the list of the re-
mote element included the local.
5 Press Send to send the list.
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20 BACK UP FULL EQUIPMENT CONFIGURATION
WITHOUT POSSIBILITY OF MODIFYING THE PA-
RAMETERS
20.1 SCOPE
This chapter describes the procedure to back up the full equipment configuration.
This permits to recover the original equipment configuration in case of faulty CONTROLLER module replace-
ment with spare.
20.2 CONFIGURATION UPLOAD
Foreword: it is advisable to upload the configuration during the first installation. Proceed as follows:
1 Select “Equipment Configuration Wizard” from menu "Tools"; "Equipment Configuration Wiz-
ard " window will be displayed.
2 Select “Upload” and then “Backup Full Equipment Configuration”; “Template Selection” win-
dow will be displayed.
3 Select the correct equipment template (in case of uncorrected choice the backup will be aborted).
4 Press OK and then select the equipment to be uploaded from “Upload Configuration File” window.
5 Press OK and then edit the file name from “Save backup as” window.
6 Press Save; “Equipment Configuration Wizard: Complete Backup” window will appear.
The window shows dynamically the backup procedure. If everything is OK, at the end of the upload
will appear the word “done” showing the procedure success.
7 Press OK to finish.
20.3 CONFIGURATION DOWNLOAD
Once the spare LIM has been installed proceed as follows:
1 Select “Equipment Configuration Wizard” from menu “Tools”. “Equipment Configuration Wizard ”
window will be displayed.
2 Select “Download” and than “Restore Full Equipment Configuration” from Equipment Config-uration Wizard . “Select Backup File” window will be displayed.
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3 Select the wanted backup file with extension .bku and then press Open. “Download Configuration
File” window will be displayed.
4 Select the equipment to download and then press OK; “Equipment Configuration Wizard: Complete
restore” window will be displayed. This window shows dynamically the download operation. The
word “done” indicates that download has been successfully.
5 Press OK to finish.
Warning: In case of EOC alarm proceed to restart the equipment.
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21 ALS - FIRMWARE UPDATE
21.1 INTRODUCTION
This chapter contains the description of the procedure to update ALS radio with SDH firmware.
Firmware update IS TRAFFIC AFFECTING: this procedure minimize the duration of traffic interruptions.
This procedure is applicable to each equipment of the network: it is presented as a procedure applicable
using the SCT/LCT, both from a local connection or from a remote one, but an equivalent procedure may
be followed from the NMS5UX management system.
21.2 SYSTEM VERSION OF FIRMWARE
Firmware software modules are described by an object called System version.
The system version is made up by a code and a version: SRALSOxy version 0x.0y.0z where X and y are
digits describing the release and the last z is the digit regarding the version of the release.
Few examples are:
SRALSO11 version 01.01.01
SRALSO12 version 01.02.03
Tab.17 – System version composition
SRALSOxy (0x.0y.0z) Version ALS radio link
E82079 0a.0b.0c Equipment controller boot (C12080)
N90485 0a.0b.0c Equipment controller appl.
N904830a.0b.0c Fpga_Base_Band (LIM Ed. 01)
0a.0b.0c Conf_Base_Band (LIM Ed. 01)
N905080a.0b.0c Fpga_Base_Band (LIM Ed. 02)
0a.0b.0c Conf_Base_Band (LIM Ed. 02)
N904860a.0b.0c Fpga_Modem (RIM Ed. 01)
0a.0b.0c Conf_Modem (RIM Ed. 01)
N905300a.0b.0c Fpga_Modem (RIM Ed. 02)
0a.0b.0c Conf_Modem (RIM Ed. 02)
N905330a.0b.0c Fpga_Modem (RIM XPIC)
0a.0b.0c Conf_Modem (RIM XPIC)
E82076 0a.0b.0c Radio boot
N92487 0a.0b.0c Radio appl.
N90489 0a.0b.0c Radio Fpga (ALS6, ALS18, ALS23)
N90543 0a.0b.0c Radio Fpga (ALS13)
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21.3 PRELIMINARY CHECKS
Once received from SIAE a new system version, always check inside the "release notes" if the new system
version can be applied on the working one directly or if an intermediate step should be performed before.
Before starting the upgrade procedure be sure of the status of the equipment to be downloaded. In theSCT window “Current alarms” verify the absence of internal alarms, i.e. alarms related to:
• hardware module failures
• software module failure
• hardware or software mismatch
• units not responding
If the download is performed on a terminal connected to the SCT via the PPP radio, verify also the absence
of any alarm related to the radio connection, i.e.:
• RX power low
• TX power low
• HBER, LBER or EWL.
The presence of any other kind of alarm must in any case be justified and its cause known before proceed-
ing with the download procedure.
Upgrade should not be performed in presence of alarms.
In any case, if any alarm is present, save a Fault Report (using the SCT menu Equipment/Reports/Fault
Report) as a reference, to verify after the upgrade that no further alarms appeared.
To assure the possibility to perform a downgrade from the new version back to the old one, you must save
all the configuration data (using the SCT configuration wizard) before starting this update.
Note: Saving the configuration before proceeding with the download of a new version is always recom-
mended, even if downgrade is not foreseen.
21.4 FIRMWARE UPGRADE
A list of necessary steps is provided.
Please, be sure to have read previous chapters before performing the upgrade.
Note: the order of the paragraphs corresponds to the order to be followed in the upgrade procedure to
guarantee the minimum impact on the traffic and the proper behaviour of the equipment.
21.4.1 N90485 - Equipment controller application download
In SCT window Download setup select in Download Type field Forced. Locate the file als_all_osi.dwl
on your PC (in Fig.109 you can see an example of Download Setup window, please note that the Down-
load file path in the example may not correspond to the one you have).
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Fig.109 – Download setup window for equipment controller application download
Press Start to execute the download.
Confirm the command clicking on Procedure to download? button (see Fig.110) before expiration time.
Fig.110 – Confirm of the operation
The Downloading window (see Fig.111) appears with download status.
Fig.111 – Download progress
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During download, the relevant Status message is present in the log window of the SCT.
During the download no traffic interruption and no alarm should appear.
During the download the Downloading Warning is present in the summary panel.
After the download, the Software Download Completed message appears in the log window of SCT and
new SW release appears in the software unit table of Equipment Software Version window.
Important note: if Software Download Aborted message appears in log window of SCT or if Software
Download Completed message does not appear, the download operation has not been properly per-
formed, hence the bench switch must not be done.
After the download, click on Bench Switch button to switch on the memory bench with the new firmware
as in Fig.112.
Fig.112 – Equipment software version window
21.4.2 N90487 - Radio application download (first branch)
Warning: This download procedure IS TRAFFIC AFFECTING, if performed on the working radio branch. In
1+1 system, to minimize the impact on traffic the download has to be performed on the stand-by branch.
In this procedure we assume that initially the working radio branch is branch 1.
If the initially working radio branch is branch 2, just reverse the instructions between branch1 and branch
2.
In Download setup window select download type Only difference or not present/peripheral.
Locate the file n90487_0a0b0c -br2A.dwl on your PC (similar to Fig.109).
Please note the actual filename has the actual firmware module version (e.g. 01.01.00) insteadof 0a0b0c.
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In a 1+1 equipment this file refers to radio branch 2. Press Start to execute the download.
Confirm the command clicking on Proceed to download? button (see Fig.110) before expiration time.
A window will appear, giving the status of the download, similarly to Fig.111.
During download, the relevant Status message is present in the log window of the SCT.
During the download no traffic interruption and no alarm should appear.
During the download the Downloading Warning is present in the summary panel.
This upgrade procedure IS NOT TRAFFIC AFFECTING only if performed on the stand-by branch.
After the download, the Software Download Completed message appears in log window of SCT and new
SW release appears in the software unit table of Equipment Software Version window (see Fig.112).
21.4.3 N90489 (ALS6U-ALS18-ALS23)/N90543 (ALS13) - Radio FPGAdownload (first branch)
Warning: This download procedure IS TRAFFIC AFFECTING, if performed on the working radio branch.
In 1+1 system, to minimize the impact on traffic the download has to be performed on the stand-by
branch. In this procedure we assume that initially the working radio branch is branch 1.
If the initially working radio branch is branch 2, just reverse the instructions between branch1 and branch2.
In SCT window Download setup (similar to Fig.109) select download type Only difference or not
present/peripheral.
Locate the file n90489_0a0b0c_br2A.dwl (for ALS6U, ALS18 or ALS23) or n90543_0a0b0c_br2A.dwl
(for ALS13) on your PC.
Press Start to execute the download.
Confirm the command clicking on the Proceed to download? button (as in Fig.110) before expiration
time.
A window will appear, giving the status of the download, similarly to Fig.111.
During download, the relevant Status message is present in the log window of the SCT.
During the download no traffic interruption and no alarm should appear.
During the download the Downloading Warning is present in the summary panel.
After the download, the Software Download Completed message appears in log window of SCT and new
SW release appears in the software unit table of Equipment Software Version window (see Fig.112).
21.4.4 N90486 or N90530 - Modem download (first branch)
Warning: this download procedure IS TRAFFIC AFFECTING, if performed on the working radio branch.
In 1+1 system, to minimize the impact on traffic the download has to be performed on the stand-by
branch.
In this procedure we assume that initially the working radio branch is branch 1.
If the initially working radio branch is branch 2, just reverse the instructions between branch 1 and branch
2.
In the SCT window Download setup (similar to Fig.109) select download type Only difference or not
present/peripheral. Locate the file n90486_rim2a.dwl on your PC.
User must always select n90486_rim2a.dwl; the controller will manage the download of this file or of
the file n90530_*** depending on the version of the controller itself.
Press Start to execute the download.
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Confirm the command clicking on the Proceed to download? button (as in Fig.110) before expiration
time.
A window will appear, giving the status of the download, similarly to Fig.111.
During download, the relevant Status message is present in the log window of the SCT.
During the download no traffic interruption and no alarm should appear.During the download the Downloading Warning is present in the summary panel.
After the download, the Software Download Completed message appears in log window of SCT and new
SW release appears in the software unit table of Equipment Software Version window (see Fig.112).
21.4.5 Radio branch switch (1+1 systems only)
Warning: This part of the procedure IS TRAFFIC AFFECTING: the average impact on the traffic is 1 ES
(Errored Second) and 1 SES (Severely Errored Second).
OPen ALS LCT, select Radio Switch page and set Branch-2 for both Rx preferential and Tx Preferentialfields (see Fig.113).
Fig.113 – Radio switch window
Press Apply to perform the new setting.
Confirm the command clicking on the Confirm changes? button (as in Fig.110) before expiration time.
As a consequence of the Tx switch, some Rx alarms will appear on the remote terminal, on both branches.
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21.4.6 N90487 - Radio application download - second branch (1+1 sys-tem only)
Warning: this download procedure IS TRAFFIC AFFECTING, if performed on the working radio branch.
In 1+1 system, to minimize the impact on traffic the download has to be performed on the stand-by
branch. In this procedure we assume that initially the working radio branch is branch 1.
If the initially working radio branch is branch 2, just reverse the instructions between branch 1 and branch
2.
In Download setup window select download type Only difference or not present/peripheral.
Locate the file n90487_0a0b0c_br1A.dwl on your PC (similar to Fig.109).
In a 1+1 equipment this file refer to radio branch 1.
Press Start to execute the download.
Confirm the command clicking on Proceed to download? button (see Fig.110) before expiration time.
A window will appear, giving the status of the download, similarly to Fig.111.
During download, the relevant Status message is present in the log window of the SCT.
During the download no traffic interruption and no alarm should appear.
During the download the Downloading Warning is present in the summary panel.
After the download, the Software Download Completed message appears in log window of SCT and new
SW release appears in the software unit table of Equipment Software Version window (see Fig.112).
21.4.7 N90489 (ALS6U-ALS18-ALS23)/N90543 (ALS13) - Radio FPGAdownload - second branch (1+1 system only)
Warning: This download procedure IS TRAFFIC AFFECTING, if performed on the working radio branch.
In 1+1 system, to minimize the impact on traffic the download has to be performed on the stand-by
branch. In this procedure we assume that initially the working radio branch is branch 1.
If the initially working radio branch is branch 2, just reverse the instructions between branch 1 and branch
2.
In SCT window Download setup (similar to Fig.109) select download type Only difference or not
present/peripheral.
Locate the file n90489_0a0b0c_br1A.dwl (for ALS6U, ALS18 or ALS23) or n90543_0a0b0c_br1A.dwl
(for ALS13) on your PC.
Press Start to execute the download.
Confirm the command clicking on the Proceed to download? button (as in Fig.110) before expiration
time. A window will appear, giving the status of the download, similarly to Fig.111.
During download, the relevant Status message is present in the log window of the SCT.
During the download no traffic interruption and no alarm should appear.
During the download the Downloading Warning is present in the summary panel.
After the download, the Software Download Completed message appears in log window of SCT and new
SW release appears in the software unit table of Equipment Software Version window (see Fig.112).
21.4.8 N90486 or N90530 - Modem download - second branch (1+1 sys-tem only)
Warning: This download procedure IS TRAFFIC AFFECTING, if performed on the working radio branch.
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In 1+1 system, to minimize the impact on traffic the download has to be performed on the stand-by
branch. In this procedure we assume that initially the working radio branch is branch 1.
If the initially working radio branch is branch 2, just reverse the instructions between branch 1 and branch
2.
In SCT window Download setup (similar to Fig.109) select download type Only difference or not
present/peripheral.
Locate the file n90486_rim1a.dwl on your PC.
Press Start to execute the download.
Confirm the command clicking on the Proceed to download? button (as in Fig.110) before expiration
time.
A window will appear, giving the status of the download, similarly to Fig.111.
During download, the relevant Status message is present in the log window of the SCT.
During the download no traffic interruption and no alarm should appear.
During the download the Downloading Warning is present in the summary panel.
After the download, the Software Download Completed message appears in log window of SCT and new
SW release appears in the software unit table of Equipment Software Version window (see Fig.112).
21.4.9 N90486 or N90508 - Baseband download
Warning: This part of the procedure IS TRAFFIC AFFECTING: the average impact on the traffic is 4 ES
(Errored Seconds) and 4 SES (Severely Errored Seconds).
In SCT window Download setup (similar to Fig.109) select download type Only difference or not
present/peripheral.
Locate the file n90483.dwl on your PC.
In a 1+1 equipment this file refer to radio branch 1.
Press Start to execute the download.
Confirm the command clicking on the Proceed to download? button (as in Fig.110) before expiration
time.
A window will appear, giving the status of the download, similarly to Fig.111.
This upgrade procedure IS TRAFFIC AFFECTING (about 4 ES and 4 SES has been observed).
After the download, the Software Download Completed message appears in log window of SCT and new
SW release appears in the software unit table of Equipment Software Version window (see Fig.112).
21.5 FINAL CHECK
When the upgrade procedure is finished, verify the status of the equipment by opening the SCT Current
alarms window and verifying the absence of alarms.
If before starting the upgrade procedure some alarms were present, compare Current alarms list with the
previously saved one.
In case of new alarms, verify the possible cause and check the equipment configuration regarding on pre-
viously saved Fault Report.
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21.5.1 Downgrade procedure
If any unresolvable problem occurs while running the newly downloaded version, a downgrade is still pos-
sible. This chapter explains how to perform it.
If upgrade procedure has been performed step by step, the link works on branch 2, in Tx and in Rx. Down-
grade operation can be performed on branch 1 (in stand-by).
Note: a complete downgrade may not br necessary to recover the full functionalities of the equipment. In
this case you can perform only some of the following steps.
Equipment controller
The downgrade of the Equipment Controller firmware is easily done by a simple bench switch (the previ-
ously running firmware being still present in the stand-by memory bench.
Radio application (first radio branch)
To perform the downgrade of the radio application please follow the procedure of paragraph 21.4.2, se-lecting the file n90487_br1.dwl from the relevant system version.
Radio FPGA (first radio branch)
To perform the downgrade of the radio FPGA please follow the procedure of paragraph 21.4.3 selecting the
file n90489_br1.dwl from the relevant system version.
Modem download (first radio branch)
To perform the downgrade of the modem firmware please follow the procedure of paragraph 21.4.4, se-
lecting the file n90486_br1.dwl from the relevant version.
Radio application (second radio branch)
To perform the downgrade of the radio application please follow the procedure of paragraph 21.4.6, se-
lecting the file n90487_br2.dwl from the relevant system version.
Radio FPGA (second radio branch)
To perform the downgrade of the radio FPGA please follow the procedure of paragraph 21.4.7, selecting
the file n90489_br2.dwl from the relevant system version.
Modem download (second radio branch)
To perform the downgrade of the modem firmware please follow the procedure of paragraph 21.4.8, se-
lecting the file n90486_br2.dwl from the relevant system version.
Baseband download
To perform the downgrade of the modem firmware please follow the procedure of paragraph 21.4.9, se-
lecting the file n90483.dwl from the relevant system version.
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Section 4.CHARACTERISTICS AND DE-SCRIPTIONS SPECIFICATION
22 SYSTEM CHARACTERISTICS
22.1 GENERAL
In this chapter:
• system characteristics, relevant to the whole radio equipment
In the following chapters:
• IDU characteristics
• ODU characteristics: the following characteristics, relevant to the radio frequency, are included in
attached manuals:
- operating band and subbands
- band number and width of RF filter
- subdivision of the operating band in different transmitters
- TX guaranteed characteristics
- Rx guaranteed characteristics
- consumption and power supply characteristics
- losses in branching and flange typology towards antenna or wave guide.
• description of IDU and its functional modules
• description of ODU and its functional modules.
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22.2 SYSTEM CHARACTERISTICS
- Configuration 5 1+0/1+1 Hot Stand-by 1 antenna or 2 antennas/
1+1 frequency diversity/2+0
- Modulation 32/128QAM
- Demodulation coherent
- Possible channel schemes (see Fig.114) adjacent channel polarised (ACAP)
adjacent channel co-polarised (ACCP)
co-channel dual polarisation (CCDP)
- Transmission capacity
- Main signal STM-1
2xSTM-1
4xSTM-1 6
- Service channel up to 2x2 Mbit/s way side
1x64 kbit/s, V11 contradirectional
- Interfaces
- Line interfaces STM-1 electrical ITU-T G.703
STM-1 optical I1/S.1.1/L1.1 as per ITU-T G.957
63x2 Mbit/s G.703 6
Ethernet IEEE 802.3 10/100BaseT, 100BaseFx, 6
1000BaseSx or Lx 6
- STM-1 tributary port impedance 75 Ohm micro coaxial
- Impedance and 2 Mbit/s trib.
port connectors 120 Ohm balanced type D 25 pins
Switching protection 6
- Switching configuration 1+1 Hot Stand-by or 1+1 frequency diversity
- Tx switching outage time 180 ms
- Rx switching type hitless
- Static delay recovery ± 32 bit
- Dynamic delay recovery ± 16 bit
Frequency reuse with XPIC 6
- Internal C/I (128 QAM) 1 dB degradation for an internal C/I 17 dB
- Internal C/I (32 QAM) 1 dB degradation for an internal C/I 14 dB
Performance monitoring
- G.828 counters ES, SES, SEP, BBE, UAS
- Transmitter and receiver power counters
- Received Level and Transmitted Level Threshold Seconds- Number of seconds during whom the re-
ceived (transmitted power) is below (above) a predefined threshold "n". The number of threshold
is 4. The operator can set the threshold value.
5 SDH IDU compact is only 1+0
6 only for SDH IDU modular
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- Received Level and Transmitted Level Tide Mark - The Received (Transmitted) Level Tide Mark is a
mechanism that records the maximum and the minimum value reached by RL (TL) during a meas-
urement period.
Environmental conditions
- Temperature range ETSI EN 300-019
- IDU -5°C to +45°C
- ODU -33°C to +50°C
- Relative humidity 93% up to 30°C
- ODU Weather proofing as per Recc. IP65
- EMC (Electromagnetic compatibility) ETS 300-489-4
Dimensions
- IDU 1U mod./compact (lxhxp) 480x45x260 mm
- IDU 2U modular (lxhxp) 480x90x260 mm
- ODU AS 1+0 (lxhxp) 254x254x121 mm
- ODU AS 1+1 (lxhxp) 358x254x296 mm
- ODU ALS 1+0 (lxhxp) 165x400x190 mm
- ODU ALS 1+1 (lxhxp) 316x400x229 mm
Weights of ODU
- ODU AS 1+0 5.5 kg.
- ODU AS 1+1 15 kg.
- ODU ALS 1+0 9 kg.
- ODU ALS 1+1 19 kg.
IDU/ODU AS connection
- Nominal impedance 50 Ohm
- Coaxial cable 1 cable for 1+0 configuration
2 cables for 1+1 configuration
- Cable attenuation <30 dB for 330 MHz
- Cable return loss better than 22 dB for 330 MHz
- Cable max. length <300 m (1/4” Cellflex cable)
IDU/ODU ALS connection
- Nominal impedance 50 Ohm
- Coaxial cable 1 cable for 1+0 configuration
2 cables for 1+1 configuration
- Cable attenuation <30 dB for 330 MHz
- Cable return loss min 22 dB from 100 to 400 MHz
- Total cable resistance 1,9 Ohm
- Cable max length see Tab.18
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Tab.18 – Cable examples
Fig.114 – Example of channel arrangements on the same route
Tx and Rx switches in 1+1 system
Two different configurations are available for ALS 1+1 radio equipment:
• hot stand-by - the controller, depending on precise criteria, manages Rx (hitless) and Tx switches
• frequency diversity - the controller manages only Rx switch (hitless) because both radio send con-
temporarly.
Criteria used for switches are listed in Tab.19 and Tab.20.
Tab.19 - Tx switch
SIAE cable codeMax cable length
K09212A K09259 K09217A K09202
SDH ALS 18-38 300 m 300 m 300 m 550 m
SDH ALS 6-15 200 m 210 m 220 m 550 m
Priority Level Alarm
High
Low
1 RIM PSU alarm
2 Manual forcing
3 Cable short alarm
3 Cable open alarm
3 Modulator failure alarm
3 ODU unit failure alarm
3 VCO failure alarm
3 IF unit alarm
3 Tx power low alarm
4Demand from remote (both remote re-
ceivers in HBER)
5 Revertive Tx
ACCP
V or H
CCDP
V
H
ACAP
V
H
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Tab.20 - Rx switch
Priority Level Alarm
High
Low
1 RIM PSU alarm
2 Manual forcing
3 Cable short alarm
3 Cable open alarm
3 ODU unit failure alarm
3 VCO failure alarm
3 IF unit alarm
3 Demodulator failure alarm
3 BER
4 Early warning
5 Rx Power low alarm
6 CRC pulse
7 Revertive Rx
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23 CHARACTERISTICS OF THE INDOOR UNIT
23.1 GENERAL
The following IDU characteristics are guaranteed for the temperature range from -5°C to +45° C and are
the same for IDU modular and compact, if not differently specified.
23.2 STM-1 ELECTRICAL INTERFACE
Input side
- Bit rate 155520 kbit/s ±20 ppm
- Line code CMI
- Rated impedance 75 ohm
- Rated level 1 Vpp ± 0.1 V
- Return Loss 15 dB from 8 MHz to 240 MHz
- Max. attenuation of the input cable 12.7 dB at 78 MHz ( law)
Output side
- Bit rate 155520 kbit/s ±4,6 ppm
- Rated level 1 Vpp ±0.1 V
- Pulsa shape see mask of Figures 24 and 25 of ITU-T
Rec. G.703
23.3 STM-1 OPTICAL INTERFACE
The optical interface can be specialized for different applications, by simply equipping the STM-1 optical
interface with the appropriate pluggable transceiver (with LC optical connectors). Information about the
presence/absence and type of transceiver is transferred to the main controller. The characteristics of all
the possible optical interfaces are summarized in the Tab.21:
f
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Tab.21
The LIM is provided with Automatic Laser Shutdown functionality as prescribed by ITU-T G.664 Recom-
mendation.
23.4 2 Mbit/s WAYSIDE INTERFACE
Input side
- Bit ate 2048 kbit/s ±50 ppm
- Line code HDB3
- Rated impedance 120 Ohm
- Rated level 2.37 Vp/75 Ohm or 3 Vp/120 Ohm
- Return loss 12 dB from 57 kHz to 102 kHz
18 dB from 102 kHz to 2048 kHz
14 dB from 2048 kHz to 3072 kHz
- Max attenuation of the input cable 6 dB according to law
- Accepted jitter see mask in Table 2, ITU-T Rec. G.823
- Transfer function see mask in Figure 1, ITU-T Rec. G.742
- Output jitter Rec. G.783 (Table 10.1 (4/97))
Output side
- Bit rate 2048 kbit/s ±50 ppm
- Rated impedance 120 Ohm
- Rated level 2.37 Vp/75 Ohm or 3 Vp/120 Ohm
- Pulsa shape see mask in Figure 15, ITU-T Rec. G.703
23.5 64 kbit/s CONTRA-DIRECTIONAL INTERFACE V.11
- Tolerance ±100 ppm
- Equipment side contra-directional
- Coding clock and data on independent wire
- Electrical interface see Rec. ITU-T V.11
Interf. Ref.
Launched
power
(dBm)
Minimum
sensitivity
(dBm)
Operating
wavelengthTransceiver Fiber
Distance
(km)
L-1.2 G.957 0 ... -5 -34 1480-1580 Laser Single-Mode Up to 80
L-1.1 G.957 0 ... -5 -34 1263-1360 Laser Single-Mode Up to 40
S-1.1 G.957 -8 ...-15 -28 1263-1360 Laser Single-Mode Up to 15
I-1 ANSI -14 ... -20 -28 1263-1360 Led MultiMode Up to 2
f
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23.6 ALARM INTERFACE
User output
- Relay contacts normally open (NO) or normally closed (NC)
- Open contacts R min. 100 MOhm at 500 Vdc
- Closed contacts R max. 0.5 Ohm
- Switching voltage Vmax 100 V
- Switching voltage Imax 1 A
User input
- Equivalent circuit recognized as a closed contact 200 Ohm resist. (max) referred to -6 V (min)
- Equivalent circuit recognized as a open contact 60 kOhm (min) referred to +4 V (max)
23.7 NETWORK MANAGEMENT INTERFACE
AUI interface 6
- Connector 15 pin SUB–D
- Connection to LAN with a branching cable and a transceiver to
the Ethernet Thick coaxial cable
- Protocol TCP/IP and IPoverOSI
RJ45 interface
- LAN type Ethernet Twisted Pair 802.3 10BaseT
- Connector RJ45
- Connection to LAN direct with a CAT5 Twisted Pair
- Protocol TCP/IP or IPoverOSI
BNC interface
6
- LAN type Ethernet thinnet 802.3 10Base2
- Connector BNC
- Connection to LAN RG58 coax. cable 50 Ohm
- Protocol TCP/IP or IPoverOSI
RS232 interface
- Electrical interface V.28
- Asynchronous baud rate 9600, 19200, 38400, 57600
- Protocol PPP
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USB LCT interface
- Version 1.1
- Speed rate 12 Mbit/s
- Protocol PPP
23.8 MODULATOR/DEMODULATOR
- Carrier modulating frequency
- Tx side 330 MHz
- Rx side 140 MHz
- Type of modulation 32QAM/128QAM
- Type of coding BCM (Block Coded Modulation)
- Modulating signal gross bit rate 169036.846 kbit/s (STM-1)
338073.692 kbit/s (2xSTM-1)
- Spectrum shaping raised cosine (roll-off = 0.45 for 32QAM;
0.26 or 0.35 for 128QAM)
- Demodulation coherent
- Baseband adaptive equalizer 21 taps
- Coding gain (asymptotic) 11 dB
23.9 CABLE INTERFACE
- Interconnection with the ODU unit single coaxial cable for both Tx and Rx
- Cable length see chapter “22 SYSTEM CHARACTERISTICS”
- Rated impedance 50 Ohm
- Signal running along the cable
- Tx nominal frequency 330 MHz
- Rx nominal frequency 140 MHz
- Transceiver management signals 388 kbit/s bidirectional
- Carrier for transceiver management signals IDU to ODU = 17.5 MHz/-15 dBm
ODU to IDU = 5.5 MHz/-15 dBm
- Remote power supply direct from battery voltage
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23.10 AVAILABLE LOOPS
Following IDU loops are available:
• STM-1 loop, line side
• STM-1 loop, radio side
• baseband loop
• IDU loop.
23.11 BATTERY INTERFACE
- Input battery voltage 48Vdc +20% -15%
Warning:
As protection to power supply circuit, inside the equipment and behind the front panel, there is a fuse with
the following characteristics:
- Nominal current 3A
- Nominal voltage 125 Vdc
- Type timed
- Dimensions 6.10 mm x 2.59 mm
- Contact soldering, not remplaceable during the service
- Position RIM module, behind front panel
23.12 POWER SUPPLY CURRENT
Power supply (Recc. EN 300 132-2)
- Battery voltage 48 Vdc +20% -15% (positive to ground)
- Imax at 48 Vdc
- 1+0 modular terminal <2 A (ALS6/7/8/11/13/15)
<1,3 A (ALS18/23/25/28/38)
- 1+1 modular terminal <3,6 A (ALS6/7/8/11/13/15) (<1,8 A for con.)
<2,3 A (ALS18/23/25/28/38) (<1,15A for con.)
- 1+0 XPIC modular terminal <3,6 A (ALS6/7/8/11/13/15) (<1,8 A for con.)
<2,3 A (ALS18/23/25/28/38) (<1,15A for con.)
- 1+1 XPIC modular terminal <7,2 A (ALS6/7/8/11/13/15) (<1,8 A for con.)
<4,6 A (ALS18/23/25/28/38) (<1,15A for con.)
- 1+0 compact terminal <1,9 A (ALS6/7/8/11/13/15)
<1,2 A (ALS18/23/25/28/38)
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24 CHARACTERISTICS OF OUTDOOR UNIT
24.1 GENERAL
The following ODU characteristics, relevant to the radio frequency, are included in attached manuals:
• operating band and subbands
• band number and width of RF filter
• subdivision of the operating band in different transmitters
• TX guaranteed characteristics
• Rx guaranteed characteristics
• consumption and power supply characteristics
• losses in branching and flange typology towards antenna or wave guide.
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25 DESCRIPTION OF THE SDH IDU
25.1 GENERAL
SDH IDU is available in modular and compact versions.
Modular version has nxSTM1 or Ethernet line interface. Compact version has only STM-1 line interface.
Both versions can be connected to ODU AS and ODU ALS.
25.2 DESCRIPTION OF IDU SDH MODULAR
The SDH IDU consists of a wired mechanical shelf housing the following:
• LIM (Line Interface Module)
• RIM (Radio Interface Module)
• Controller.
Following chapters give description of each individual module.
25.2.1 Description of the LIM
The LIM is placed between the line side and the RIM circuitry. It interfaces the STM-1, 2xSTM-1, 4xSTM-1
tributary signals as below described.
25.2.1.1 STM-1 interface
Line side to radio side
As shown in Fig.116, the STM-1 from the line side is coming from the SPI physical interface, electrical or
optical, for format and level adaptation. The STM-1 is then sent to SOH drop circuit for RSOH bytes termi-
nation. This is done after clock extraction and acknowledgment of A1, A2 frame alignment word made by
an alignment circuit.
The SOH drop circuit extracts the following bytes:
• B1: byte Interleaved Parity, BIP-8 code using even parity. B1 byte carries link quality information.
B1 byte is sent to main controller in order to process the performance monitoring relevant to G.828.
It is calculated on all bits of the previous STM-1 frame after scrambling and placed into B1 byte of
the current frame prior to scrambling.
• D1, D2, D3 are the DCC channels and are sent to main controller for supervision and management
of regenerator sections
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• F1 is used for 64 kbit/s, V11 channel transmission. This signal can be terminated or passed to the
radio side.
Remaining bytes are not changed and transit with no change.
In case of input signal fail or failed recognition of A1/A2 or J0 byte on both radio streams an alarm criteria
is provided (LOS/LOF) which allows to:
• enable the local restart and permit the insertion of service signals relevant to RSOH section of SOH
towards the radio side.
• insert an MS AIS signal on the SOH and on the payload.
The RSOH bytes previously terminated from line side are radio side recovered for sending the whole STM-
1 frame to the two RIMs. One 2 Mbit/s wayside channel is embedded in the STM-1 frame by using the
media dependent bytes and extra columns joined to STM-1 frame. The total bit rate corresponds to 157248
kbit/s. Remaining bytes are not used and transit with no change.
Radio side to line side
As shown in Fig.116 STM-1 signals from RIMs are sent to SOH Drop circuits. The extraction of byte from
SOH relevant to RSOH section is carried out, after recognising A1, A2 alignment frame bytes by means of an aligner. Besides, it is performed a check on the path identifier contained into J0 byte.
In case of input signal fail or failed recognition of A1/A2 or J0 bytes on both radio streams an alarm criteria
is provided (LOS/LOF) which allows to:
• enable the local restart and permit the insertion of service signals relevant to RSOH section of SOH
towards the line side.
• insert an MS AIS signal on MSOH section of SOH and on the payload.
The SOH drop circuit extracts the following bytes:
• B1: byte Interleaved Parity, BIP-8 code using even parity. B1 byte carries link quality information.
B1 byte is sent to main controller in order to process the performance monitoring relevant to G.826.
It is calculated on all bits of the previous STM-1 frame after scrambling and placed into B1 byte of
the current frame prior to scrambling.
• D1, D2, D3 are the DCC channel and are sent to main controller for supervision and management
of regenerator sections
• F1 is used for extraction of a 64 kbit/s, V11 channel. This signal can be terminated or passed to the
radio side.
• 2 Mbit/s wayside from media dependent bytes and extra columns joined to STM-1 frame.
Remaining bytes are not changed and transit with no change.
In 1+1 version STM-1 signals at the output of the two SOH drop circuits are sent to the Rx switching sec-
tion.
The switch is of hitless type. It provides the dynamic alignment for the two streams before switching with
delay compensation up to ±16 bit.
Switching operation can be observed on front panel LEDS.
Alarms and controls managed by the main controller manage the switching operation according to the fol-
lowing priority list:
• power supply failure alarm
• local manual force command
• major receiver alarms: receiver failure, cable interface alarm, demodulator, LOS/LOF alarms
• HBER alarm: bit error rate with threshold presettable 10-6 or 10-3
• HBER alarm: bit error rate with threshold presettable 10-9 or 10-6
• Early warning: bit error rate with threshold presettable 10-12 or 10-9
• Prx alarm: presettable threshold within the received field range
• preferred branch presetting.
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The STM-1 signal at switching output is sent to SOH Insert circuit to insert B1, DCC and F1. In case of local
restart A1, A2 bytes are regenerated for frame alignment purpose. SPI output circuit allows to adapt levels
and code to G.703 specification for electrical interface or G.957 for optical interface.
25.2.1.2 2xSTM-1 interface
Line side to radio side (see Fig.117)
The two STM-1 signals enter similar input circuits already seen in Fig.116, that is SPI and SOH drop.
The local restart and the consequent MS-AIS generation is enabled in case of missing of both STM-1 input
signals.
The generation of the 2xSTM-1 frame is obtained by interleaving column by column the two STM-1 frames
plus additional columns dedicated for the insertion of two local 2 Mbit/s wayside.
The 2xSTM-1 frame generation is enabled provided that the two input STM-1 are synchronous between
them (see paragraph 25.2.1.4 Up to 4xSTM-1 synchronisation for details).
The frame also contains the J0 bytes and B1 bytes for radio path trace and performance monitoring.
As far as F1 carrying 64 kbit/s V.11 is concerned, the physical interface point on the LIM front is only one.
The operating mode is controlled as follows:
• line side: via software it is possible to terminate one F1 and enable the transit to the other in pass-
through modality
• radio side: via software it is possible to enable one F1 whereas the F1, line side, transits in pass-
through modality.
At the output of the 2xSTM-1 multiplexer the bit rate of the signal is 314496 kbit/s.
Along with the relevant clock the 314496 kbit/s signal is sent to the two modulators within the RIM via an
hybrid for signal duplication.
Radio side (see Fig.118)
The 2xSTM-1 signal plus relevant cks from demodulators within the RIMs are sent to the frame aligner
circuits with the purpose of extracting radio performances and alarms (LOS, J0 trace identifier mismatch)
that drive the hitless switch. This latter provides dynamic alignment of ±7 bytes before switching. The
2xSTM-1 radio side SOH drop circuit terminates the F1, D1-D3, J0, RPM (Radio Performance Monitoring)
signals that were embedded in the 2x2STM-1 frame in the far terminal, radio side.
At the output of SOH drop circuit will be available, on two separated paths, the two STM-1 signals plus the
2 Mbit/s way side.
The circuits that follow first terminate the wayside signals sending them to the 2 Mbit/s output interfaces
and then, through a RSOH insert circuit, embed the F1, D1-D3, J0, B1 into the two STM-1 frames to be
delivered to the line side.
Take into account that only one F1 can be use to carry a 64 kbit/s -V.11 channel from the local service
interface. The other F1 carries another 64 kbit/s-V11 channel (if used) in pass-through mode.
25.2.1.3 4xSTM-1 interface
Refer to Fig.119.
The four STM-1 signals are two by two grouped (precisely STM-1#1 with STM-1#2 and STM-1#3 with STM-
1#4) and then sent to two different 2xSTM-1 multiplexers.
The signal processing is equal to that already seen in paragraph 25.2.1.2 2xSTM-1 interface.
The output of the 2x2 STM-1 multiplexers are individually sent to modem 1 and modem 2 to be applied,
through the two transceivers, to a double-polarization antenna.
This occurs when the frequency re-use system is used.
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25.2.1.4 Up to 4xSTM-1 synchronisation
Refer to Fig.120.
The 2xSTM1 or 4xSTM-1 configurations require:
• the input STM-1s to be synchronous among them;
• the selection of the clock signal achieved from one of the input STM-1.
This to the purpose to generate a common synchronisation that enables the generation of one (2xSTM-1
transmission) or two 2xSTM-1 (4xSTM-1 transmission) frames along with the 2x2 Mbit/s waysides and 64
kbit/s service channel.
As shown by the Fig.120 the clocks extracted from the up to four STM-1 signals are sent to a selection
circuit that chooses one of the four signals depending on the control sent by a selection logic. This latter
acts on the base of alarm roots (LOS-loss of input signal or LOF-loss of frame) priority assigned and manual
forcing. The selected clock drives an oscillator through a PLL circuit. The oscillator will generate the re-
quired synchronisation for the 2xSTM-1 frame generation. If no input signals are available the internal os-
cillator source is used for the local restart.
25.2.2 Description of the RIM
The RIM consists of a common board housing the following mains circuits:
• 32/128 QAM modemodulator
• power supply and cable interface.
25.2.2.1 Modem
Reference is made to Fig.121.
Modulator side
The aggregate signal from LIM is enriched with extra redundancy for FEC operation reaching the total mod-
ulating rate shown below:
• 169036,846 kbit/s (1xSTM-1 version)
• 338073,692 kbit/s (2xSTM-1 version).
The circuit that follows encodes the data for the 32 or 128 constellation points and then, through a digital
filters and D/A converters, supplies the I & Q signals to the QAM modulator along with 330 MHz carrier.
The QAM modulated carrier is passed, through an IF low pass filter and an amplifier, to the cable interface
circuit for the connection to the IDU/ODU cable.
Demodulator side
The 140 MHz QAM modulated carrier from ODU, is received by the demodulator input passing through the
cable interface circuit.
An IF amplifier provided with AGC compensates for cable loss.
This amplifier has two outputs: one connected to the I&Q demodulator circuit, the other can be used for
Xpic operation.
The I&Q demodulator is driven by a 140 MHz recovered carrier. The carrier and clock recovery information
are achieved by the relevant circuits. From the analogue to digital converters the I&Q signals are sent to
the adaptive equalizer to minimize the intersymbolic interference.
The data are then passed to the decoder and the error corrector for the relevant processing and for gen-eration of a single aggregate signal to be sent to the LIM.
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25.2.2.2 Power supply and cable interface
Reference is made to Fig.123.
The Power Supply Unit receives the 48 V battery voltage from a 3W3 SUB-D connector on RIM front. The
battery is processed through a DC to DC converter to achieve the +3.5V; +1.5V; +5V to power feed the
LIM and the RIM.
The same battery voltage is sent to the interconnection cable to power the far ODU. An automatic protec-
tion protects the battery against cable short.
The Cable Interface permits the bidirectional dialogue between IDU and ODU. It consists of combination
and separation filters.
Signals from IDU to ODU are the following:
• battery voltage between the core and the cable shield
• 330 MHz, 32/128QAM modulated carrier carrying the main signal
• 17.5 MHz FSK modulated carrier coming from the LIM and carrying the controls for ODU manage-
ment.
Signal from ODU to IDU are the following:
• 5 MHz FSK modulated carrier going to LIM and carrying the measurements and alarms from ODU
• 140 MHz 32/128 QAM modulated carrier carrying the main signal
25.2.3 Description of RIM with XPIC
The RIM with XPIC for frequency reuse systems consists of a common board housing the following main
circuits:
• 32/128QAM modemodulator
• 32/128QAM additional demodulator
• power supply and cable interface.
Modemodulator, power supply and cable interface are the same of normal RIM.
Additional demodulator for frequency reuse system
The frequency reuse system allows the coexistence of two radio bearer transmission on the same radio
channel. Each radio bearer carries up to 2xSTM-1 signal. The system consists of two fully independent
transceivers, each of one connected to one polarisation of a dual polarized antenna (see Fig.122).
Each receiving path receives the signal from the same polarisation and the interference signal from the
cross polarisation.
The interference signal can varies both in amplitude and phase as a function of the RF channel distortiondue to the propagation condition. The frequency reuse system makes use of an additional demodulator
that receives the IF signal from the receiver placed on the cross polarized antenna. The demodulator is
equipped with an adaptive equalizer (XPIC) able to perform in the time domain the opposite function of
the channel distortion. The signal thus generated, summed-up with the one available on the main demod-
ulator, permits to cancel the interference contained in the copolar signal.
This RIM has 3 connectors (see Fig.115) on front panel:
• SMA connector for IF IDU-ODU cable
• SMA connector to send Rx signal to other RIM on other polarization
• SMA connector to receive Rx signal from the other RIM working on the other polarization.
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ALS - MN.00164.E - 001 173
Fig.115 – RIM with XPIC into 1RU IDU
25.2.4 Description of the controller
The controller module supplies the following:
• the interface ports for the management program access
• the equipment software for equipment management
• the alarm interface through relay contacts that permits to transfer outside the alarm severity asso-
ciated to each alarm root along with external input alarms.
25.2.4.1 Interface ports
The SCT/LCT or NMS5UX management program takes access to the equipment through the following in-
terface ports:
• LCT provided with an USB access connector with a maximum speed rate of 12 Mbit/s
• RS232 provided with a SUB-D access connector with a maximum speed rate of 57.6 kbit/s
• Q3-Ethernet IEEE 802.3 with three different access connector options: RJ45/AUI/BNC.
• STM-1 QECC using D1-D3-SOH bytes of the STM-1 frame with a speed rate of 192 kbit/s.
25.2.4.2 Equipment firmware
Equipment firmware controls and manages all the equipment functionalities.
It is distributed over two hardware levels: main controller within the controller module and peripheral con-
troller within the ODU. The dialogue between the main and slave controllers occurs through a 388 kbit/s
frame carried by FSK modemodulators (see Fig.124) housed into IDU and ODU.
Main controller
The activities performed by the main controller are the following:
• Communication management: it makes use of SNMP as management protocol and IP or IPoverOSI
as communication protocol stacks. See Fig.125 and Fig.126 for details.
The interface ports to permits the dialogue man-machine between the SCT/LCT - NMS5UX programs
and the main controller are listed in paragraph 25.2.4.1.
• Log-in: the main controller manages the equipment or network login/logout by setting and then
controlling the user’s ID and relevant password.
• Database (MIB): validation and storing in a non-volatile memory of the equipment configuration pa-
rameters.
• Equipment configuration: distribution of the parameters stored in the MIB towards the peripheral
µPs for their attenuation in addition to the controls from user not stored in the MIB (i.e. loops, man-
ual forcing etc....)
-+
X X
XX
+ -
W.S.1 W.S.2 V11
ONONONON
FAIL1 2 3 4
REM
R
USER IN/OUTRS232LCT
TEST
ODUIDU
Q3
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174 ALS - MN.00164.E - 001
• Alarm monitoring: acquisition, filtering and correlation of the alarms gathered from slaved µPs. Lo-
cal logger and alarm sending to the connected managers: SCT/LCT-NMS5UX. Management of the
alarm signalling on the LIM front panel.
• Performances: PM management as per Recc. G.828.
• Download: the main controller is equipped with two flash memory banks containing the running pro-
gram (active bank) and the stand-by program (inactive bank). This permits to download a new soft-ware release to the inactive bank without distributing the traffic. Bank switch enables the new
release to be used. Download activity is based on FTP protocol which downloads application pro-
grams, FPGA configuration, configuration files on main controller inactive bank or directly on the
peripheral controllers.
Peripheral controller
The peripheral controllers take place within the ODU and are slaved to main controller with the task of ac-
tivating controls and alarm reporting of dedicated functionality.
25.2.5 IDU telemetry
Refer to Fig.127. The telemetry is used to:
• propagate towards the far radio terminal the following information: ATPC, user inputs and alarms.
It makes use of the S (2,2) media dependent byte for the transport.
• permits the dialogue between IDU and ODU. the ODU management controls are framed over a 388
kbit/s signal that from the main controller is propagated over the IDU/ODU interconnecting cable
making use of a 5.5 MHz FSK modulated carrier.
Similarly alarms and status from ODU are propagated towards IDU making use of another 388 kbit/s
framed signal that is propagated over the interconnecting cable making use of a 17 MHz, FSK modulated
carrier.
25.2.6 IDU loops
To control the IDU correct operation a set of local and remote loops are made available. The controls are
sent by the management program (SCT/LCT or NMS5UX). Refer to Fig.128 for details.
25.2.6.1 Line loop
Local loop
Each input STM-1 signal is routed back directly to the output thus permitting to control the IN/OUT inter-
connecting cables.
Remote loop
Each output STM-1 signal is routed back towards the radio. This permits to control the path back and for-
ward.
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ALS - MN.00164.E - 001 175
25.2.6.2 Baseband loop
The input 1xSTM-1 or 2x STM-1 signals are multiplexed and then, through the loop, routed back to the
output lines. This permits to control all the LIM circuitry.
25.2.6.3 IDU loop
This loop permits to control the full IDU operation. It happens inside the RIM. The modulator output signal
is routed back to the demodulator. Upon enabling the loop, the 330 MHz modulator output frequency is
converted to 140 MHz (demodulator input).
Warning: If IDU loop (IF) doesn’t work, please repeat the IDU loop (IF) with the IDU-ODU cable discon-
nected from IDU to give a final result.
25.2.7 Front panel of SDH IDU modular
Fig.129 shows the front panel of SDH IDU modular (with RIM XPIC) with LEDs and connectors highlighted.
25.3 DESCRIPTION OF IDU SDH COMPACT
25.3.1 General
IDU SDH compact version is an indoor unit for SDH equipment produced in single board structure. There’s
no protected configuration and no XPIC. Two different hardware composition are available for the same
unit in order to operate with user interfaces and services a) and b), as illustrated in the Tab.22.
Tab.22 - Service and user interfaces
Capacities 155 Mbit/s (with 32QAM/128QAM modulation) and 311 Mbit/s (with 128QAM modulation) are
provided.
Specifically the possible alternatives are:
• STM1 (155 Mbit/s) 128QAM - 28 MHz
• STM1 (155 Mbit/s) 32QAM - 56 MHz
• 2xSTM1 (311 Mbit/s) 128QAM - 56 MHz.
IDU consists of a single module which contains all devices to realize following functions:
• line interface
• radio interface
• equipment controller
Type User Payload Service
a2xSTM1 electrical with 1.0/2.3
2xE1 (wayside) connectors
1xV11
1xRS232
b2XSTM1 optical/electrical with plug-in module
2xE1 (wayside) connectors
1xUSB
2xETH10/100
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176 ALS - MN.00164.E - 001
• IDU loop
• baseband loop
• line loop.
25.3.1.1 STM-1 interface
Line side to radio side
As shown in Fig.130, the STM-1 signal from the line side is coming from the SPI physical interface, electrical
or optical, for format and level adaptation. The STM-1 is then sent to SOH drop circuit for RSOH bytes ter-
mination. This is done after clock extraction and acknowledgment of A1, A2 frame alignment word made
by an alignment circuit.
The SOH drop circuit extracts the following bytes:
• B1: byte Interleaved Parity, BIP-8 code using even parity. B1 byte carries link quality information.
B1 byte is sent to main controller in order to process the performance monitoring relevant to G.828.It is calculated on all bits of the previous STM-1 frame after scrambling and placed into B1 byte of
the current frame prior to scrambling.
• D1, D2, D3 are the DCC channels and are sent to main controller for supervision and management
of regenerator sections
• F1 is used for 64 kbit/s, V11 channel transmission. This signal can be terminated or passed to the
radio side.
Remaining bytes are not changed and transit with no change. In case of input signal fail or failed recogni-
tion of A1/A2 or J0 byte on both radio streams an alarm criteria is provided (LOS/LOF) which allows to:
• enable the local restart and permit the insertion of service signals relevant to RSOH section of SOH
towards the radio side.
• insert an MS AIS signal on the SOH and on the payload.
The RSOH bytes previously terminated from line side are radio side recovered for sending the whole STM-
1 frame to modulator. One 2 Mbit/s wayside channel is embedded in the STM-1 frame by using the media
dependent bytes and extra columns joined to STM-1 frame. The total bit rate corresponds to 157248 kbit/
s. Remaining bytes are not used and transit with no change.
Radio side to line side
As shown in Fig.130 STM-1 signals from demodulator are sent to SOH Drop circuits. The extraction of byte
from SOH relevant to RSOH section is carried out, after recognising A1, A2 alignment frame bytes by
means of an aligner. Besides, it is performed a check on the path identifier contained into J0 byte.
In case of input signal fail or failed recognition of A1/A2 or J0 bytes on both radio streams an alarm criteria
is provided (LOS/LOF) which allows to:
• enable the local restart and permit the insertion of service signals relevant to RSOH section of SOH
towards the line side.
• insert an MS AIS signal on MSOH section of SOH and on the payload.
The SOH drop circuit extracts the following bytes:
• B1: byte Interleaved Parity, BIP-8 code using even parity. B1 byte carries link quality information.
B1 byte is sent to main controller in order to process the performance monitoring relevant to G.826.
It is calculated on all bits of the previous STM-1 frame after scrambling and placed into B1 byte of
the current frame prior to scrambling.
• D1, D2, D3 are the DCC channel and are sent to main controller for supervision and management
of regenerator sections
• F1 is used for extraction of a 64 kbit/s, V11 channel. This signal can be terminated or passed to the
radio side.
• 2 Mbit/s wayside from media dependent bytes and extra columns joined to STM-1 frame.
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ALS - MN.00164.E - 001 177
Remaining bytes are not changed and transit with no change.
The STM-1 signal is sent to SOH Insert circuit to insert B1, DCC and F1. In case of local restart A1, A2 bytes
are regenerated for frame alignment purpose. SPI output circuit allows to adapt levels and code to G.703
specification for electrical interface or G.957 for optical interface.
25.3.1.2 2xSTM-1 interface
Line side to radio side (see Fig.131)
The two STM-1 signals enter similar input circuits already seen in Fig.130, that is SPI and SOH drop.
The local restart and the consequent MS-AIS generation is enabled in case of missing of both STM-1 input
signals.
The generation of the 2xSTM-1 frame is obtained by interleaving column by column the two STM-1 frames
plus additional columns dedicated for the insertion of two local 2 Mbit/s wayside.
The 2xSTM-1 frame generation is enabled provided that the two input STM-1 are synchronous betweenthem. The frame also contains the J0 bytes and B1 bytes for radio path trace and performance monitoring.
As far as F1 carrying 64 kbit/s V.11 is concerned, the physical interface point on the front is only one. The
operating mode is controlled as follows:
• line side: via software it is possible to terminate one F1 and enable the transit to the other in pass-
through modality
• radio side: via software it is possible to enable one F1 whereas the F1, line side, transits in pass-
through modality.
At the output of the 2xSTM-1 multiplexer the bit rate of the signal is 314496 kbit/s. Along with the relevant
clock the 314496 kbit/s signal is sent to modulator.
Radio side (see Fig.132)
The 2xSTM-1 signal plus relevant clock from demodulator are sent to the frame aligner circuits with the
purpose of extracting radio performances and alarms (LOS, J0 trace identifier mismatch). The 2xSTM-1
radio side SOH drop circuit terminates the F1, D1-D3, J0, RPM (Radio Performance Monitoring) signals that
were embedded in the 2x2STM-1 frame in the far terminal, radio side.
At the output of SOH drop circuit will be available, on two separated paths, the two STM-1 signals plus the
2 Mbit/s way side.
The circuits that follow first terminate the wayside signals sending them to the 2 Mbit/s output interfaces
and then, through a RSOH insert circuit, embed the F1, D1-D3, J0, B1 into the two STM-1 frames to be
delivered to the line side.
Take into account that only one F1 can be use to carry a 64 kbit/s -V.11 channel from the local service
interface. The other F1 carries another 64 kbit/s-V11 channel (if used) in pass-through mode.
25.3.1.3 Modem
Reference is made to Fig.133.
Modulator side
The aggregate signal from line interface is enriched with extra redundancy for FEC operation reaching the
total modulating rate shown below:
• 169036,846 kbit/s (1xSTM-1 version)
• 338073,692 kbit/s (2xSTM-1 version).
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178 ALS - MN.00164.E - 001
The circuit that follows encodes the data for the 32 or 128 constellation points and then, through a digital
filters and D/A converters, supplies the I & Q signals to the QAM modulator along with 330 MHz carrier.
The QAM modulated carrier is passed, through an IF low pass filter and an amplifier, to the cable interface
circuit for the connection to the IDU/ODU cable.
Demodulator side
The 140 MHz QAM modulated carrier from ODU, is received by the demodulator input passing through the
cable interface circuit.
An IF amplifier provided with AGC compensates for cable loss.
This amplifier has two outputs: one connected to the I&Q demodulator circuit, the other can be used for
Xpic operation.
The I&Q demodulator is driven by a 140 MHz recovered carrier. The carrier and clock recovery information
are achieved by the relevant circuits. From the analogue to digital converters the I&Q signals are sent to
the adaptive equalizer to minimize the intersymbolic interference.
The data are then passed to the decoder and the error corrector for the relevant processing and for gen-
eration of a single aggregate signal to be sent to line interface.
25.3.1.4 Power supply and cable interface
Reference is made to Fig.134.
The Power Supply Unit receives the 48 V battery voltage from a 3W3 SUB-D connector on RIM front. The
battery is processed through a DC to DC converter to achieve the +3.5V; +1.5V; +5V to power feed the
IDU.
The same battery voltage is sent to the interconnection cable to power the far ODU. An automatic protec-
tion protects the battery against cable short.
The Cable Interface permits the bidirectional dialogue between IDU and ODU. It consists of combination
and separation filters.
Signals from IDU to ODU are the following:
• battery voltage between the core and the cable shield
• 330 MHz, 32/128QAM modulated carrier carrying the main signal
• 17.5 MHz FSK modulated carrier coming from the Controller and carrying the controls for ODU man-
agement.
Signal from ODU to IDU are the following:
• 5 MHz FSK modulated carrier going to Controller and carrying the measurements and alarms from
ODU
• 140 MHz 32/128 QAM modulated carrier carrying the main signal
25.3.2 Controller
The controller manages the following:
• the interface ports for the management program access
• the equipment firmware for equipment functioning
• the alarm interface through relay contacts that permits to transfer outside the alarm severity asso-
ciated to each alarm root along with external input alarms.
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ALS - MN.00164.E - 001 179
25.3.2.1 Interface ports
The SCT/LCT or NMS5UX management program takes access to the equipment through the following in-
terface ports:
• LCT provided with an USB access connector with a maximum speed rate of 12 Mbit/s
• RS232 provided with a SUB-D access connector with a maximum speed rate of 57.6 kbit/s
• Q3-Ethernet IEEE 802.3 with RJ45 connector
• STM-1 QECC using D1-D3-SOH bytes of the STM-1 frame with a speed rate of 192 kbit/s.
25.3.2.2 Equipment firmware
Equipment firmware controls and manages all the equipment functionalities.
It is distributed over two hardware levels: main controller within the controller module and peripheral con-
troller within the ODU. The dialogue between the main and slave controllers occurs through a 388 kbit/s
frame carried by FSK modemodulators (see Fig.135) housed into IDU and ODU.
Main controller
The activities performed by the main controller are the following:
• Communication management: it makes use of SNMP as management protocol and IP or IPoverOSI
as communication protocol stacks. See Fig.136 and Fig.137 for details.
• Log-in: the main controller manages the equipment or network login/logout by setting and then
controlling the user’s ID and relevant password.
• Database (MIB): validation and storing in a non-volatile memory of the equipment configuration pa-
rameters.
• Equipment configuration: distribution of the parameters stored in the MIB towards the peripheral
µPs for their attenuation in addition to the controls from user not stored in the MIB (i.e. loops, man-
ual forcing etc....)
• Alarm monitoring: acquisition, filtering and correlation of the alarms gathered from slaved µPs. Lo-
cal logger and alarm sending to the connected managers: SCT/LCT-NMS5UX. Management of the
alarm signalling on the front panel.
• Performances: PM management as per Recc. G.828.
• Download: the main controller is equipped with two flash memory banks containing the running pro-
gram (active bank) and the stand-by program (inactive bank). This permits to download a new soft-
ware release to the inactive bank without distributing the traffic. Bank switch enables the new
release to be used. Download activity is based on FTP protocol which downloads application pro-
grams, FPGA configuration, configuration files on main controller inactive bank or directly on the
peripheral controllers.
Peripheral controller
The peripheral controllers take place within the ODU and are slaved to main controller with the task of ac-
tivating controls and alarm reporting of dedicated functionality.
25.3.3 IDU telemetry
Refer to Fig.138. The telemetry is used to:
• propagate towards the far radio terminal the following information: ATPC, user inputs and alarms.It makes use of the S (2,2) media dependent byte for the transport.
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180 ALS - MN.00164.E - 001
• permits the dialogue between IDU and ODU. the ODU management controls are framed over a 388
kbit/s signal that from the main controller is propagated over the IDU/ODU interconnecting cable
making use of a 5.5 MHz FSK modulated carrier.
Similarly alarms and status from ODU are propagated towards IDU making use of another 388 kbit/s
framed signal that is propagated over the interconnecting cable making use of a 17 MHz, FSK modulated
carrier.
25.3.4 IDU loops
To control the IDU correct operation a set of local and remote loops are made available. The controls are
sent by the management program (SCT/LCT or NMS5UX). Refer to Fig.139 for details.
25.3.4.1 Line loop
Local loop
Each input STM-1 signal is routed back directly to the output thus permitting to control the IN/OUT inter-
connecting cables.
Remote loop
Each output STM-1 signal is routed back towards the radio. This permits to control the path back and for-
ward.
25.3.4.2 Baseband loop
The input 1xSTM-1 or 2x STM-1 signals are multiplexed and then, through the loop, routed back to the
output lines. This permits to control all the line interface circuitry.
25.3.4.3 IDU loop
This loop permits to control the full IDU operation. The modulator output signal is routed back to the de-
modulator. Upon enabling the loop, the 330 MHz modulator output frequency is converted to 140 MHz (de-
modulator input).
Warning: If IDU loop (IF) doesn’t work, please repeat the IDU loop (IF) with the IDU-ODU cable discon-
nected from IDU to give a final result.
25.3.5 Front panel of SDH IDU compact
Fig.140 shows the front panel of SDH IDU compact with LEDs and connectors highlighted.
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A L S
-MN. 0 0 1 6 4 .E
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ALS - MN.00164.E - 001 183
Fig.118 – LIM block diagram, RST operation mode - 2xSTM-1 version - from radio side to line
side
Fig.119 – LIM - 4xSTM-1 operation mode
Framealigner
Hitless switch Switch control
Data–ck–frame
sync
Framealigner
Data–ck–frame
sync
2xSTM–1radio side
SOH Drop
F1
D1–D3
RPMJ0
2 Mbit/s waysidedrop/destuff
2 Mbit/s waysidedrop/destuff
RSOH insert 1 RSOH insert 2
Alarms
(LOF, RPM, J0) dem1 and
2 alarms, Ber
F1 D1–D3 B1 J0 F1 D1–D3 B1 J0
STM–1 + 2 Mbit/s
STM–1
STM–1 + 2 Mbit/s
STM–1
Alarms
(LOF, RPM, J0)
From DEM1 From DEM2
Service channels
interconnection
64 kbit/s/V11
local drop
Equip.controller
Waysideinterf.
2 Mbit/s
2 Mbit/s
STM–1
to line
STM–1
to line
As per circuitryof Fig. 84
As per circuitryof Fig. 84
LIM
MODEM A ODU A
MODEM B ODU B
STM–1#1
STM–1#2
STM–1#3
STM–1#4
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184 ALS - MN.00164.E - 001
Fig.120 – Synchronisation block diagram
Clock
selection
Logic
circuit for
clock
selection
Synchronism
for 2xSTM–1
generation
Ck from STM–1/1
Ck from STM–1/2
Ck from STM–1/3
Ck from STM–1/4
LOS 1–4
LOF 1–4
Priority control
Manual forcing
Control
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A L S
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186 ALS - MN.00164.E - 001
Fig.122 – Frequency reuse system arrangement
Fig.123 – Power supply and cable interface block diagram
+
+
Rx1
Rx2
V
H
IF
IF
MainDEM
Main
DEM
Dem withXPIC
Dem withXPIC
RIM1
RIM2
data H
data V
TxA
TxB
V
H
Data H
Data V
Cableinterface
MOD
DEM140 MHz
330 MHz
Filtering& fuse
–
–
MODFSK
DEMFSK
LIM
5 MHz
17,5 MHz
to/fromODU
–48 Vbattery +5 V
+1.5 V+3.5 V
Cableprotec.
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ALS - MN.00164.E - 001 187
Fig.124 – Main and peripheral controller connection
Fig.125 – Full-IP protocol stack
r e l l o r t n o c n i a
M
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TCP/UDP
SNMP
ALS APPLICATION SOFTWARE
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188 ALS - MN.00164.E - 001
Fig.126 – OSI+IP protocol stack
Fig.127 – IDU telemetry
AsynchronousRS–232
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STM–1 DCC– Line sideSTM–1 DCC– Radio sideISO 8802.3(Ethernet LAN)
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A L S
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190 ALS - MN.00164.E - 001
1 Led fail (self test controller)
- Electrical or plug-in line interface (electrical or optical with LED ON) and fail- 2xE1 wayside (RJ45)
- V11 (RJ45)
- IDU-ODU cable (SMA) connector
- IF out XPIC (SMA) connector
- IF in XPIC (SMA) connector
- -48 Vdc power supply connector, positive to ground
- Switch button
- LCT (USB) connector
- RS232 (SUB-D 9 pin male) connector
- User In/Out (SUB-D 9 pin male) connector
- Q3 (RJ45) connector
- Reset button
- IDU alarm LEDs (red), ODU (red), REM (red), TEST (yellow)
Fig.129 - Front panel of SDH IDU modular
-+
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ALS - MN.00164.E - 001 193
Fig.132 – Line interface block diagram, RST operation mode - 2xSTM-1 version - from radio side
to line side (IDU SDH compact)
Framealigner
Data–ck–frame
sync
2xSTM–1radio sideSOH Drop
F1
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ALS - MN.00164.E - 001 195
Fig.134 – Power supply and cable interface block diagram
C O N T R O L L E R
Cableinterface
MOD
DEM140 MHz
330 MHz
Filtering& fuse
–
–
MODFSK
DEMFSK
5 MHz
17,5 MHz
to/fromODU
–48 Vbattery +5 V
+1.5 V+3.5 V
Cable
protec.
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196 ALS - MN.00164.E - 001
Fig.135 – Main and peripheral controller connection
Fig.136 – Full-IP protocol stack
r e l l o r t n o c n i a
M
N A L
2 3 2 S R
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IP / OSPF
TCP/UDP
SNMP
ALS APPLICATION SOFTWARE
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ALS - MN.00164.E - 001 197
Fig.137 – OSI+IP protocol stack
Fig.138 – IDU telemetry
AsynchronousRS–232
PPP
STM–1 DCC– Line sideSTM–1 DCC– Radio sideISO 8802.3(Ethernet LAN)
LLC ISO 8802.2MAC ISO 8802.3
LAPDQ.921
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TCP/UDP
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ALS APPLICATION SOFTWARE
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1 9 8
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ALS - MN.00164.E - 001 199
1 STM1-1 output (optical or electrical plug-in)
2 STM1-1 input (optical or electrical plug-in)
3 STM1-2 output (optical or electrical plug-in)
4 STM1-2 input (optical or electrical plug-in)
5 2xE1 (1, 2) wayside
6 ETH1 (RJ45) connector
7 ETH2 (RJ45) connector
8 V11 (RJ45) connector
9 RS232 (RJ45) connector
10 LCT (USB) connector
11 (SUB-D 9) 2 user in, 1 user out console
12 3,15 A 250V delayed fuse 5 20 mm miniature
13 SUB-D 3W3 power supply connector
14 IDU-ODU cable SMA connector
15 Led Test (yellow)
16 ODU alarm Led (red)
17 IDU alarm Led (red)
18 Led On (green)
Fig.140 - Front panel of IDU SDH compact
LCT
+ -
IDU
ON
ODU
TEST
USER IN/OUT
RS232V11
Q3 /1 Q3/ 2
1
2
21
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16 17
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200 ALS - MN.00164.E - 001
26 ODU AS DESCRIPTION
26.1 GENERAL
The ODU (refer to Fig.141) consists of a two shell aluminium structure, one shell housing all the circuits,
the other forming the covering plate.
On the ODU there are:
• the “N” type connector for cable interfacing IDU and ODU
• the “BNC” connector for connection to a multimeter with the purpose to measure the received field
strength
• a ground bolt.
The 1+1 hot stand–by version (refer to Fig.142) consist of two ODUs mechanically secured to a structure
housing the hybrid (for 1+1 hot stand-by configuration) or the circulator (for 1+1 frequency diversity con-
figuration) for the antenna connection.
26.2 TRANSMIT SECTION
Refer to block diagram shown in Fig.143.
The 330 MHz QAM modulated carrier from the cable interface (see chapter 26.4 CABLE INTERFACE) is for-
warded to a mixer passing through a cable equalizer for cable loss compensation up to 40 dB. The mixer
and the following bandpass filter give rise to a second IF Tx carrier the frequency of which depends on the
go/return frequency value.
The IF Tx frequency is µP controlled. Same happens to Rx IF and RF local oscillators. This latter is common
to both Tx and Rx sides.
The IF carrier is converted to RF and then amplified making use of MMIC circuits.
The power at the MMIC output can be manually attenuated via software.
The automatic adjustment is performed making use of an ATPC (see paragraph 26.5 ATPC OPERATION for
details).
The regulated output power is kept constant by a detector diode and a feedback including the AGC. RF Tx
signal is injected in Tx section of the duplexer.
The Loop RF circuits permit the conversion of the RF Tx signal to Rx frequency of the terminal. In this way
it is possible to control the total local radio terminal performance.
26.3 RECEIVE SECTION
The RF signal coming from the Rx bandpass filter of the duplexer is sent to a low noise amplifier that am-
plify it to low NF. The following down–converter translates the RF frequency to IF Rx frequency.
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ALS - MN.00164.E - 001 201
A second down converter converts this signal to 140 MHz IF frequency. The output level of this signal is
kept constant to –5 dBm thank to the IF amplifier stages, AGC circuit controlled. Inside the IF Rx chain
there are filters that give Rx selectivity. In addition the AGC gives a measure of the receive RF level.
26.4 CABLE INTERFACE
The cable interface permits to interface the cable interconnecting IDU to ODU and viceversa.
It receives/transmits the following signals:
• 330 MHz (from IDU to ODU)
• 140 MHz (from ODU to IDU)
• 17.5 MHz (from IDU to ODU)
• 5.5 MHz (from ODU to IDU)
• remote power supply.
The 17.5 MHz (IDU -> ODU) and 5.2 MHz (ODU -> IDU) FSK modulated carriers, carry the telemetry chan-
nel. This latter consists of two 388 kbit/s streams one from IDU to ODU with the information to manage
the ODU (RF power, RF frequency, capacity, etc...) while the other, from ODU to IDU, sends back to IDU
measurements and alarms of the ODU. The ODU management is made by a µP.
26.5 ATPC OPERATION
The ATPC regulates the RF output power of the local transmitter depending on the value of the RF level
that joins the remote terminal. This value has to be preset from the local terminal as threshold high and
low. The difference between the two thresholds must be equal or higher than 3 dB.
As soon as the received level crosses the preset threshold level low (see Fig.144) due to the increase of
the hop attenuation, a microP at the received side of the remote terminal sends back to the local terminal
a control to increase the transmitted power. The maximum ATPC range is 40 dB.
If the hop attenuation decreases and the threshold high is crossed then the control sent by the microP
causes the output power to decrease.
26.6 1+1 HOT STAND-BY AND FREQUENCY DIVERSITY Tx SYSTEM
The following 1+1 configurations are available:
• 1+1 hot stand-by, realized by 2 ODUs coupled by a mechanical support with one hybrid inside. Hy-
brid can be balanced or unbalanced.
• 1+1 frequency diversity, realized by 2 ODUs coupled by a mechanical support with a circulator in-
side.
The two ODUs are coupled to the antenna side via a balanced or unbalanced hybrid/circulator.
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202 ALS - MN.00164.E - 001
26.7 POWER SUPPLY
The battery voltage is dropped from the cable interface and then sent to a DC/DC converter to generate
stabilized output voltages used by the ODU circuitry:
Each voltage is protected against overcurrent with automatic restart.
Protection against overvoltage occurs as soon as the output voltage raises more than 15% respect to the
nominal voltage. The restart is automatic.
26.8 FREQUENCY REUSE
The frequency reuse system makes use of an XPIC circuit (Cross Polar Interference Canceller) and allows
the coexistence of two radio bearer transmission on the same RF channel. Each radio bearer carries an
individual STM–1 or 2xSTM–1.
The system consists of two fully independent transceivers, and a crosspolarized antenna with polarization
H connected to one transceiver and polarization V connected to the other transceiver.
The initial co–channel interference is featured by the antenna cross polar discrimination factor (example
29 dB). This value may be not sufficient for frequency reuse system making use of modulations of
32QAM.
After all, it may be impaired by the propagation condition giving rise to a BER degradation. To get a suitable
discrimination value, an adaptive canceller, based on a fully numeric adaptive coefficient filter, must be
used.
As shown in Fig.145, the received signals at the IF receiver outputs are processed by the demodulator
placed on the copolar branch as well as by the canceller annexed to the demodulator processing the signals
from the cross polar polarization. This process operates inbase band time domain.
An adaptive equalizer minimizes the intersymbolic interference within the copolar demodulator whereas acircuit similar to the equalizer, processes the signal on the cross route.
Such a signal, summed with the one available at the equalizer output permits the cancelling of the inter-
ference contained in the copolar signal.
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ALS - MN.00164.E - 001 203
Fig.141 - 1+0 ODU
Fig.142 - 1+1 ODU with branching
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204 ALS - MN.00164.E - 001
Fig.143 - ODU block diagram
C a b l e
i n t e r f a c e
C a b l e
e q u a l i z .
D C D C
S t e p u p
T
L N A
M M I C
v a r i a b l e b w
( c a p a c i t y
d e p e n d i n g )
A G C
N t y p e
3 3 0
M H z
- 4 8 V
x
P R x m e a s
1 4 0
M H z
1 4
0
M H
z
a p p r o x .
7 6 5
M H z
+ 3 . 5
V
+ 6 . 2 t o 8 . 2
V
- 1 2 V
A G C
x
P T x a t t .
c o n t r o l
0 t o 4 0 d B
I F
L O u
n i t
M O D
5 . 5
M H z
R E C
1 7 . 5
M H z
D E M
1 7 . 5
M H z
M U X
D E M U X
3 8 8
k b i t / s
A l a r m
m a n a g
&
c o n t r o l
A l m
c o m m
l o o p s
5 . 5 M H z
1 7 . 5
M H z
3 8 8
k b i t / s
I F T x
a n t e n n a
s i d e
I N V
B N C
P R x
m e a s .
c t r l
R F L O u n i
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x
T
x
R F l o o p
c t r l
c t r l
c t r l
R x
T x
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ALS - MN.00164.E - 001 205
Fig.144 - ATPC operation
Fig.145 - Frequency reuse system
Thresh High
Thresh Low
Hop attenuation (dB)
20 dBATPC range
PTx max.
PTx min.
Remote PRx
dBm
Local PTx
dBm
Hop attenuation (dB)
Tx
Rx
Rx
Tx
PTx actuation
Local Remote
PRx recording
Transmission
of PTx control
µP µP
level
PTx control
+
+
Rx1
Rx2
V
H
IF
IF
DEM
DEM
XPIC
XPIC
RIM1
RIM2
H data
V data
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206 ALS - MN.00164.E - 001
27 ODU ALS DESCRIPTION
27.1 GENERAL
Refer to Fig.146.
The ODU mechanical structure consists of two aluminium shells that contain respectively the active circuits
and the branching filter.
It is the electrical interface with the radiant system and the coaxial cable connected to the indoor unit
(IDU).
The IDU–ODU cable connection is realised by a “N” type connector.
In the 1+1 versions there are two “N” connectors available.
A BNC connector is also available for the measurement of the received field by means of a multimeter.
The ODU is available in the 1+0 version or in the 1+1 version.
The subdivision of active circuits into the transceiver and passive circuits into the branching has allowed
the execution of a mechanical structure that makes easier the maintenance operations.
Two knobs and two fast coupling levers permit to remove the faulty transceiver and replace it with spare.
One handle makes the transceiver transport easier.
27.2 TRANSMITTER SECTION
Refer to block diagram shown in Fig.147.
The modulated signal at 330 MHz intermediate frequency dropped from cable interface (see chapter 27.4
CABLE INTERFACE) is forwarded to a mixer in order to translate it to a new IF frequency by beating with
an IF local oscillator.
The value of this IF frequency depends on the RF channelling.
The frequency conversion from IF to the RF operating band is enabled through an SHP (Sub Harmonic
Pumped) mixer.
This latter is fed by a VCO (RF LO), common also to the receive section.
At the mixer output, it is positioned a filter with metallic insert (E–plane metal insert filter). Such a filter
provides the selection of the useful band and the erasing of the spurious signals coming from the mixer.
The signal at the filter output is forwarded to a power amplifier the gain of which is controlled by an ATPC
circuit (if enabled) or manually controlled. The ATPC range is from 0 to 20 dB, 1 dB step.
ATPC function is managed by the main controller present in the IDU and it is particularly useful to reduce
the possible interference generation.
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ALS - MN.00164.E - 001 207
27.3 RECEIVER SECTION
Refer to block diagram shown in Fig.147.
The signal coming from the branching is forwarded to a low noise amplifier. This operation allows to reduce
the noise factor of the whole receiver.
Then the signal is sent to a variable amplifier with the aim to limit the intermodulation in the following
steps.
At the output, a pre–conversion filter with metallic insert (E–plane metal insert filter) is positioned. Such
a filter provides eliminating all the signals out of the receiving band.
The reception mixer is a SHP (Sub Harmonic Pumped) type one. It allows to convert the received signal
from RF band to IF Rx frequency making use of RFLO oscillator.
At the mixer output, the signal is sent to a dielectric resonator filter to select the useful band and to elim-
inate mixer spurious signals.
A second down conversion translates the IF Rx signal frequency to 140 MHz.
At the mixer output, one filter shapes the passband for STM–1 or 2xSTM–1 signal.
This filter is realised by means of SAW technique to ensure high attenuations out of band.
An AGC (Automatic Gain Control) circuit regulates the received signal at an output constant level before to
be sent to the cable interface.
27.4 CABLE INTERFACE
The cable interface unit permits to interface the cable interconnecting IDU to ODU and viceversa.
It receives/transmits the following signals (see Fig.152):
• 330 MHz (from IDU to ODU)
• 140 MHz (from ODU to IDU)
• 17,5 MHz (from IDU to ODU)
• 5,5 MHz (from ODU to IDU)
• remote power supply.
The 17.5 MHz and 5,5 MHz carriers, carry the telemetry channel. This latter consists of two 388 kbit/s
streams one from IDU to ODU with the information to manage the ODU (RF power, frequency, capacity
etc...) while the other, from ODU to IDU, sends back to IDU measurements and alarms of the ODU.
A Mux/Demux and an alarm/management & control µP complete the telemetry channel.
27.4.1 Power supply
The cable interface unit manages the remote power supply VTAL for the outdoor unit provided through the
interconnecting cable coming from indoor unit. Refer to Fig.147.
This voltage is sent to two DC/DC converters, inserted into the power supply unit, to obtain the –12 V and
+12 V stabilised voltages. The +12 V is sent to another DC/DC converter to obtain the stabilised voltage
+5 V. These three outputs (+12 V, –12 V, +5 V) supply the whole transceiver.
Each voltage has overcurrent protection (Overcurrent prot) to disable the relevant converter.
The Alarm Detector block generates an alarm (PSU AL) due to undervoltage, if at least one of these volt-
ages drops under the fixed threshold.
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208 ALS - MN.00164.E - 001
The unit provides also an interrupt command for the +5 V and +12 V outputs if the output voltage –12 V
is missing. This prevents the devices in the power amplifier stage from reaching their saturation current.
27.5 BRANCHING UNIT
The branching unit allows coupling the antenna to the transmitting side and to the receiving one.
The branching mainly consists of one filter fro the transmission and another filter for the reception, coupled
at the antenna port by means of a duplexer.
At Tx side an optional attenuator permits to lower the output power by 0/20 dB via software. The attenu-
ator is placed in the transceiver for 38 GHz version only.
The branching unit is available in the following versions:
• 1+0 (see Fig.148)
• 1+1, hot stand–by 1 antenna with RF relay (see Fig.149)
This configuration is used up to 26 GHz.
• 1+1, hot stand–by 1 antenna with hybrid (see Fig.150)
This configuration is used from 28 GHz up to 38 GHz.
• 1+1 frequency diversity (see Fig.151).
1+1 hot stand–by version, comprises an electromechanical RF relay in Tx side for transmitter selection and
a splitter in Rx side. Two 0/50 dB attenuators can be used in alternative to the electromechanic selector
switch (see Fig.150). In this case the two 0/50 dB attenuators take place in the transceivers.
Controls for transmitter selection to be coupled to the antenna are from main controller within the LIM. It
processes the switching criteria according to the following priority:
Tab.23 - Switching criteria priority
27.6 ATPC
The automatic transmit power control function (ATPC) is available in the equipment as a standard feature.
The range is 20 dB implemented in 1 dB step. ATPC allows to improve the system performance.
The most important impacts are:
• interference reduction;
• power consumption reduction in nominal propagation condition.
The ATPC functional block diagram is shown in Fig.153.
Priority Level Definition
From highest to lowest
1 Power supply alarm
2 Local manual forcing
3 Cable open/Cable short
4 ODU failure/modulator failure
5 ATPC out of order
6 Preferential branch presetting
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ALS - MN.00164.E - 001 209
West side
The value of the received Rx power is extracted inside ODU Rx section and then transmitted to RIM making
use of a 388 kbit/s frame forwarded through a 5,5 MHz carrier.
Such a value is then inserted into the RFCOH frame to be sent to remote terminal.
East side
The remote terminal drops from the RFCOH frame the PRx information and then sends it to the ODU
through a 388 kbit/s frame forwarded by a 17,5 MHz carrier.
The value of the transmitted power is regulated by the ATPC processor circuit.
27.7 RF LOOP (OPTION)
The RF loop is realised inside the transceiver before the branching, routing the transmitted signal to the
receiver (see Fig.147).
To avoid interference, the far RF transmitter is automatically switched–off during the RF loop activity.
The transmission signal is dropped from the transmitter by means of a coupler.
Upon receiving a control from SCT/NMS5UX programs a shift oscillator is switched–on thus generating the
Tx/Rx separation frequency signal.
This latter is sent to one mixer along with the Tx signal.
The beating between the two permits to convert the Tx frequency to Rx and then to convoy the Rx fre-
quency to the Rx side through a coupler.
Warning
If RF loop is enabled on the remote terminal then the loop must be timed–out to avoid a permanent loss
of connection with the remote terminal.
Time–out presetting is performed by SCT/LCT or NMS5UX programs (for details see relevant documenta-
tion).
The RF loop must be enabled on one terminal at the time. In case of 1+1, Tx and Rx branches must be
forced on the looped branch.
RF loop can be checked only at max PTX. If ATPC is active verify output power or disable ATPC and set PTx
at maximum values.
27.8 FREQUENCY REUSE
The frequency reuse system makes use of an Xpic circuit (Cross Polar Interference Canceller) and allows
the coexistence of two radio bearer transmission on the same RF channel. Each radio bearer carries an
individual STM–1 or 2xSTM–1.
The system consists of two fully independent transceivers, and a crosspolarized antenna with polarization
H connected to one transceiver and polarization V connected to the other transceiver.
The initial co–channel interference is featured by the antenna cross polar discrimination factor (example
29 dB). This value may be not sufficient for frequency reuse system making use of modulations 32QAM.
After all, it may be impaired by the propagation condition giving rise to a BER degradation. To get a suitablediscrimination value, an adaptive canceller, based on a fully numeric adaptive coefficient filter, must be
used.
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210 ALS - MN.00164.E - 001
As shown in Fig.154, the received signals at the IF receiver outputs are processed by the demodulator
placed on the copolar branch as well as by the canceller annexed to the demodulator processing the signals
from the cross polar polarization. This process operates in base band time domain.
An adaptive equalizer minimizes the intersymbolic interference within the copolar demodulator whereas a
circuit similar to the equalizer, processes the signal on the cross route.
Such a signal, summed with the one available at the equalizer output permits the cancelling of the inter-ference contained in the copolar signal.
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ALS - MN.00164.E - 001 211
Fig.146 - Lower view of the ODU 1+1 and ODU 1+0 units
Transceivers
BNC connectorsfor PRx measuerment
N connectorsfor IDU cable
Branching
BNC connectorfor PRx measurement
N connectorfor IDU cable
Branching
Transceiver
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212 ALS - MN.00164.E - 001
Fig.147 - Block diagram of the ODU
S h i f t e r
f r o m µ P
A G C
L N A
1 4 0
M H z
P R x
I F R x
I F T x
I F R x
I F T x
R F f r o m b
r a n c h i n g
R F t o b r
a n c h i n g
d a
µ P
A T P C
1 4 0 M H z
3 3 0
M H z
M O D
5 . 5
M H z
R E C
1 7 . 5
M H z
D E M
1 7 . 5
M H z
M U X
D E M U X
A l a r m
m a n a g .
& c o n t .
µ P
5 . 5
M H z
3 8 8 k b i t / s
3 8 8 k b i t / s
A l a r m
c o m
m a n d s
l o o p s
R F L O
1 2 . 5
M H z
O v e r c u r r .
p r o
t e c .
A l a r m
d e t e c
t .
C a b l e
i n t e r f a c e
+ 1 2 V
+ 5 V P
S U A L
- 1 2 V
V T A L
t o / f r o m I D
U
R
F
A G C
0 / 2 0 d B
3 8 0 G H z s o l o
f r o m µ P
f r o m µ P
M e a s u r e
2 x S T M - 1
1 x S T M - 1
R F L o o p
O v e r c u r r .
p r o t e c .
O
v e r c u r r .
p r o t e c .
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ALS - MN.00164.E - 001 213
Fig.148 - 1+0 branching
Fig.149 - 1+1 hot stand–by branching, 1 antenna (RF relay version)
Rx
Tx
Antennaside
to/fromtransceiver
Duplexer
From Tx1
Antenna
From Tx2
To Rx1
To Rx2
Switchingcontrol
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214 ALS - MN.00164.E - 001
Fig.150 - Branching 1+1 hot stand–by, 1 antenna (version with hybrid)
Rx1
Tx1
Antennaside
Rx2
Tx2
Switching
command
from µP
Switching
command
from µP
T
0/50 dB
T
50/0 dB
Branching side
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Fig.151 - 1+1 branching frequency diversity
Fig.152 - Signals present on the IDU–ODU coaxial cable
T
0/20 dB optional
command
T
0/20 dB optional
command
from
A
from
A
48 Vdc
330 MHz140 MHz17.5 MHz5.5 MHz
RxTelemeteringfrom IDUto ODU
Tx
Telemiteringfrom ODUto IDU Rx signal Tx signal
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216 ALS - MN.00164.E - 001
Fig.153 - ATPC functional block diagram
Fig.154 - Frequency reuse system
BR ANCHING
Tx
Rx
BR ANCHING
Rx
Tx
RFCOH MOD
PRx meas.
STM-1RFCOHDEM
PRx meas.
ATPC
RIMRIM
ODUODU
West side East side
+
+
Rx1
Rx2
V
H
IF
IF
DEM
DEM
XPIC
XPIC
RIM1
RIM2
data H
data V
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ALS - MN.00164.E - 001 217
Section 5.COMPOSITION
28 IDU COMPOSITION
28.1 GENERAL
IDU SDH consists of the following versions:
• IDU SDH modular
• IDU SDH compact
Each module is available in different versions and is composed of various subunits.
Warning: Modules mentioned in this document are those that, following a failure, are considered as re-
placeable parts.
28.2 COMPOSITION OF IDU SDH MODULAR
The IDU consists of LIM/RIM/CONTROLLER modules made-up in different versions. Each module is identi-
fied through a label (see Fig.155) placed inside indicating the correspondent P/N. The P/Ns are the follow-
ing:
- LIM D12091 capacity 2xSTM-1 electrical interface
D12092 capacity 4xSTM-1 electrical interface
D12106-02 capacity 2xSTM-1 electrical/optical interface without plug-in
D12107-02 capacity 4xSTM-1 electrical/optical interface without plug-in
- E01409 plug-in module with Laser S11 interface
- S04002 plug-in module with electrical STM-1 interface and 1.0/2.3 connector
- RIM D16027 (with Xpic)
D16026 (without Xpic)
- CONTROLLER D12078 option RJ45
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Fig.155 - IDU P/N
28.3 COMPOSITION OF IDU SDH COMPACT
IDU is available in different versions; each of them is identified by a part number code.
A label, on the top left side of IDU mechanical structure contains this part number.
The available versions are:
- IDU 1+0 2xSTM-1 electrical interface GD0366
- IDU 1+0 2xSTM-1 optical interface GD0367.
ALS IDU
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29 COMPOSITION OF THE OUTDOOR UNIT
29.1 GENERAL
SDH ODU is available in ALS and AS versions.
29.2 ODU AS COMPOSITION
The ODU AS consists of mechanical structure formed by two shells. One shell houses the transceiver mod-
ule, the other houses the branching module.
Both the transceiver and the branching are available in different versions depending on the operating band,
the antenna configuration, the channel filters etc.....
To the purpose on the branching mechanical structure is available a label showing the ODU most significant
parameters and the P/N of the whole unit. Fig.156 shows label position whereas Fig.157 shows a typical
example of the parameters evidenced by the label.
Fig.156 - Label positiobs - ODU AS
ODU serial nr. plate
ODU type plate (see next figure)
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220 ALS - MN.00164.E - 001
Fig.157 - Equipment most significant data
29.3 ALS ODU COMPOSITION
IDU is made up of a mechanical structure consisting of two cases. One case houses the transceiver module
and the other houses the branching module.
Both transceiver and branching are available in different versions depending on the operating band, an-
tenna configuration, channel filters, etc....
On branching mechanical structure a label is provided; it shows the most important ODU parameters and
the part number of the whole unit.
ALS18
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ALS - MN.00164.E - 001 221
Fig.158 - Label positions - ODU ALS
Branching
Branching
Transceiver
Transceiver P/N label
Transceiver
ODU P/N position
ODU P/N position
Transceiver P/N label
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Section 6.SAFETY RULES AND EQUIP-MENT DISPOSAL
30 FIRST AID FOR ELECTRICALSHOCK AND SAFETYRULES
30.1 FIRST AID FOR ELECTRICAL SHOCK
Do not touch the patient with bare hands until the circuit has been opened. Open the circuit by switch-
ing off the line switches. If that is not possible protect yourself with dry material and free the patient
from the conductor.
30.1.1 Artificial respiration
It is important to start mouth resuscitation at once and to call a doctor immediately. suggested procedure
for mouth to mouth resuscitation method is described in the Tab.24.
30.1.2 Treatment of burns
This treatment should be used after the patient has regained consciousness. It can also be employed while
artificial respiration is being applied (in this case there should be at least two persons present).
Warning
• Do not attempt to remove clothing from burnt sections.
• Apply dry gauze on the burns.
• Do not apply ointments or other oily substances.
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224 ALS - MN.00164.E - 001
Tab.24 - Artificial breathing
Phase Description Figure
1
Lay the patient on his back with his arms parallel to the body.
If the patient is laying on an inclined plane, make sure that his
stomach is slightly lower than his chest. Open the patientsmouth and check that there is no foreign matter in mouth
(dentures, chewing gum, etc.).
2
Kneel beside the patient level with his head. Put an hand under
the patient’s head and one under his neck.
Lift the patient’s head and let it recline backwards as far
as possible.
3
Shift the hand from the patient’s neck to his chin and his
mouth, the index along his jawbone, and keep the other fingers
closed together. While performing these operations take agood supply of oxygen by taking deep breaths with your mouth
open.
4
With your thumb between the patient’s chin and mouth keep
his lips together and blow into his nasal cavities.
5
While performing these operations observe if the patient’s
chest rises. If not it is possible that his nose is blocked: in that
case open the patient’s mouth as much as possible by pressing
on his chin with your hand, place your lips around his mouth
and blow into his oral cavity. Observe if the patient’s chest
heaves. This second method can be used instead of the first
even when the patient’s nose is not obstructed, provided his
nose is kept closed by pressing the no strils together using the
hand you were holding his head with. The patient’s head must
be kept sloping backwards as much as possible.
6Start with ten rapid expirations, hence continue at a rate oftwelve/fifteen expirations per minute. Go on like this until the
patient has regained consciousness, or until a doctor has as-
certained his death.
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ALS - MN.00164.E - 001 225
30.2 SAFETY RULES
When the equipment units are provided with the plate, shown in Fig.159, it means that they contain com-
ponents electrostatic charge sensitive.
Fig.159 - Indication of components sensitive to electrostatic charges
In order to prevent the units from being damaged while handling, it is advisable to wear an elasticised band(Fig.160) around the wrist ground connected through coiled cord (Fig.161).
Fig.160 - Elasticised band
Fig.161 - Dedicated cord
The units showing the label, shown in Fig.162, include laser diodes and the emitted power can be danger-ous for eyes; avoid exposure in the direction of optical signal emission.
Fig.162 - Laser indication
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226 ALS - MN.00164.E - 001
30.3 CORRECT DISPOSAL OF THIS PRODUCT (WasteElectrical &Electronic Equipment)
(Applicable in the European Union and other European countries with separate collection systems). This
marking shown on the product (see Fig.163) or its literature indicates that it should not be disposed withother household wastes at the end of its working life. To prevent possible harm to the environment or hu-
man health from uncontrolled waste disposal, please separate this from other types of wastes and recycle
it responsibly to promote the sustainable reuse of material resources. Household users should contact ei-
ther the retailer where they purchased this product, or their local government office, for details of where
and how they can take this item for environmentally safe recycling. Business users should contact their
supplier and check the terms and conditions of the purchase contract. This product should not be mixed
with other commercial wastes for disposal.
Fig.163 - WEEE Symbol – 2002/96/CE EN50419
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31 LIST OF FIGURES
Fig.1 – 1xSTM-1 and 2xSTM-1 unprotected version............................................................ 18
Fig.2 – 1xSTM-1 and 2xSTM-1 protected version ............................................................... 19
Fig.3 – 2xSTM-1, 4xSTM-1 unprotected version................................................................. 19
Fig.4 – 4xSTM1 optical interface protected version............................................................. 20
Fig.5 – 1+0, up to 1xSTM-1 equipment block diagram, with ODU AS.................................... 21
Fig.6 – 1+0, up to 2xSTM-1 equipment block diagram, with ODU AS.................................... 22
Fig.7 – 1+1, up to 2xSTM-1 equipment block diagram, hot stand-by or
frequency diversity versions with ODU AS.......................................................................... 23Fig.8 – 1+0, 4xSTM-1 equipment block diagram, with ODU AS............................................ 24
Fig.9 – Interconnections for frequency reuse - 1+0 version................................................. 26
Fig.10 – Interconnections for frequency reuse - 1+1 version ............................................... 26
Fig.11 - Grounding connection ........................................................................................ 28
Fig.12 – Typical connector position .................................................................................. 29
Fig.13 - Connectors position ........................................................................................... 32
Fig.14 - Antisliding strip ................................................................................................. 36
Fig.15 - 60–114 mm pole supporting plate fixing............................................................... 37
Fig.16 - Adapting kit for 219 mm pole .............................................................................. 38
Fig.17 - Possible mounting position.................................................................................. 39
Fig.18 - Possible positions of the support with ODU fast locking mechanism .......................... 40
Fig.19 - Installation onto the pole of the supporting plate ................................................... 41
Fig.20 - Circulator for 1+1 frequency diversity systems ...................................................... 42
Fig.21 - Band-it pole fixing ............................................................................................. 43
Fig.22 - ODU reference tooth .......................................................................................... 43
Fig.23 - Final ODU assembly of 1+1 hot stand-by version ................................................... 44
Fig.24 - Final assembly of 1+1 frequency diversity system.................................................. 45
Fig.25 - ODU grounding ................................................................................................. 46
Fig.26 - Wall supporting plate ......................................................................................... 50
Fig.27 - Support with ODU fast locking mechanism ............................................................ 51
Fig.28 - Possible mounting positions ................................................................................ 52
Fig.29 - Installation onto the wall of the supporting plate.................................................... 53
Fig.30 - Circulator of 1+1 frequency diversity system......................................................... 54
Fig.31 - Position of the ODU body:
1+0 system - depending on the polarisation.
1+1 hot stand-by system - polarisation is always vertical (handle always at the left side)
1+1 frequency diversity system - polarisation is always horizontal (handle always at the right side)
55
Fig.32 - ODU body reference tooth .................................................................................. 55
Fig.33 - Final assembly of 1+1 hot stand-by version .......................................................... 56
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Fig.34 - Final assembly of 1+1 frequency diversity version.................................................. 57
Fig.35 - ODU grounding ................................................................................................. 58
Fig.36 - Centering ring position ....................................................................................... 63
Fig.37 - Antislide strip.................................................................................................... 64
Fig.38 - Support mount on pole....................................................................................... 65
Fig.39 - Supporting system position................................................................................. 66
Fig.40 - Hole E.............................................................................................................. 66
Fig.41 - Antenna installation on pole support..................................................................... 67
Fig.42 - Position of the ODU handle depending on the polarisation for 1+0. For 1+1 the polarisation
is always horizontal. Handle at the right side...................................................................... 67
Fig.43 - Support system for ODU housing and reference tooth in evidence ............................ 68
Fig.44 - ODU body reference tooth .................................................................................. 69
Fig.45 - ODU housing final position for vertical polarization ................................................. 69
Fig.46 - ODU housing final position for horizontal polarization.............................................. 70
Fig.47 - Hybrid and polarization disk ................................................................................ 71
Fig.48 - Circulator and polarization disk............................................................................ 72
Fig.49 - Fixing of the polarization disk (only for 13 GHz and 15 GHz).................................... 73
Fig.50 - Hybrid mount on pole support ............................................................................. 74
Fig.51 - ODU final position for 1+1 version ....................................................................... 75
Fig.52 - Final ODU assembly of 1+1 frequency diversity version .......................................... 75
Fig.53 - Vertical and horizontal adjustments ..................................................................... 76
Fig.54 - Antenna aiming block......................................................................................... 77
Fig.55 - ODU grounding ................................................................................................. 78
Fig.56 - 1+0 pole mounting ............................................................................................ 83
Fig.57 - ODU body reference tooth .................................................................................. 84
Fig.58 - Position of the ODU body:
1+0 system - depending on the polarisation.
1+1 hot stand-by system - polarisation is always horizontal (handle always at the right side)
1+1 frequency diversity system - polarisation is always vertical (handle always at the left side) 84
Fig.59 - 1+0 support ..................................................................................................... 85
Fig.60 - ODU final position.............................................................................................. 86
Fig.61 - Antenna aiming................................................................................................. 86
Fig.62 - ODU grounding ................................................................................................. 87
Fig.63 - Hybrid and polarization disk ................................................................................ 88Fig.64 - Circulator and polarisation disk............................................................................ 89
Fig.65 - Fixing of the polarization disk (only for 13 GHz and 15 GHz).................................... 90
Fig.66 - Hybrid/circulator installation ............................................................................... 91
Fig.67 - Installation of 1+1 hot stand-by ODUs.................................................................. 92
Fig.68 - Installation of 1+1 frequency diversity ODUs......................................................... 92
Fig.69 - ODU 1+1 and 1+0............................................................................................. 95
Fig.70 - ODU 1+0 and 1+1............................................................................................. 96
Fig.71 - Collar mounting ODU 1+0 and 1+1...................................................................... 97
Fig.72 - Side view (1+1) ................................................................................................ 98
Fig.73 - Rear view (1+1) ................................................................................................ 98
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Fig.74 - Side view (1+0) ................................................................................................ 99
Fig.75 - Rear view (1+0) ................................................................................................ 99
Fig.76 - Details for transceiver mounting on the branching shell ........................................ 100
Fig.77 - Antenna bend ................................................................................................. 100
Fig.78 - ODU installation (top view and front view) .......................................................... 101
Fig.79 - Grounding cord connection ............................................................................... 101
Fig.80 - Wave guide fixing, cable connection ................................................................... 102
Fig.81 - Installation on pole of the outdoor unit (1+0) ...................................................... 103
Fig.82 - Installation on pole of 3 m antenna of two ODU using two polarization.................... 104
Fig.83 - Sun–screen .................................................................................................... 104
Fig.84 - Checking the antenna polarisation ..................................................................... 107
Fig.85 - Rear view of the antenna.................................................................................. 108
Fig.86 - Pole supporting kit........................................................................................... 109
Fig.87 - Supporting bracket mounting on the antenna rear side ......................................... 110
Fig.88 - Supporting bracket mounting ............................................................................ 111
Fig.89 - Antenna fixing to the pole................................................................................. 112
Fig.90 - Alignment adjustment kit mounting ................................................................... 113
Fig.91 - 1+1 branching mounting on supporting bracket................................................... 114
Fig.92 - 1+0 branching mounting on supporting bracket................................................... 115
Fig.93 - ODU mounting in 1+1 configuration................................................................... 116
Fig.94 - ODU mounting in 1+0 configuration................................................................... 117
Fig.95 - Horizontal alignment adjustment ....................................................................... 118
Fig.96 - Vertical alignment adjustment ........................................................................... 119
Fig.97 - Outdoor unit with covering................................................................................ 120
Fig.98 - Checking the antenna alignment........................................................................ 121
Fig.99 -...................................................................................................................... 123
Fig.100 - .................................................................................................................... 123
Fig.101 - XPIC SMA to SMA cables ................................................................................. 123
Fig.102 - XPIC SMA to SMA cables ................................................................................. 123
Fig.103 - IDU-ODU cables ............................................................................................ 125
Fig.104 - IDU-ODU cables ............................................................................................ 125
Fig.105 – Connection cables ......................................................................................... 126
Fig.106 – Connection cables ......................................................................................... 126
Fig.107 - Substitution of ODU in 1+1 frequency diversity system....................................... 128
Fig.108 – Decoupling verify - Step 1 .............................................................................. 133
Fig.109 – Download setup window for equipment controller application download ................ 149
Fig.110 – Confirm of the operation ................................................................................ 149
Fig.111 – Download progress ........................................................................................ 149
Fig.112 – Equipment software version window ................................................................ 150
Fig.113 – Radio switch window...................................................................................... 152
Fig.114 – Example of channel arrangements on the same route......................................... 160
Fig.115 – RIM with XPIC into 1RU IDU............................................................................ 173
Fig.116 – LIM block diagram, RST mode - 1xSTM-1 operation ........................................... 181
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Fig.117 – LIM block diagram, RST operation mode - 2xSTM-1 operation mode - from line side to
radio side.................................................................................................................... 182
Fig.118 – LIM block diagram, RST operation mode - 2xSTM-1 version - from radio side to line side
183
Fig.119 – LIM - 4xSTM-1 operation mode ....................................................................... 183
Fig.120 – Synchronisation block diagram........................................................................ 184
Fig.121 – Modemodulator block diagram ........................................................................ 185
Fig.122 – Frequency reuse system arrangement.............................................................. 186
Fig.123 – Power supply and cable interface block diagram ................................................ 186
Fig.124 – Main and peripheral controller connection ......................................................... 187
Fig.125 – Full-IP protocol stack ..................................................................................... 187
Fig.126 – OSI+IP protocol stack.................................................................................... 188
Fig.127 – IDU telemetry............................................................................................... 188
Fig.128 – IDU loops..................................................................................................... 189
Fig.129 - Front panel of SDH IDU modular ...................................................................... 190
Fig.130 – Line interface block diagram, RST mode - 1xSTM-1 operation (IDU SDH compact) . 191
Fig.131 – Line interface block diagram, RST operation mode - 2xSTM-1 operation mode - from line
side to radio side - IDU SDH compact............................................................................. 192
Fig.132 – Line interface block diagram, RST operation mode - 2xSTM-1 version - from radio side
to line side (IDU SDH compact)...................................................................................... 193
Fig.133 – Modemodulator block diagram ........................................................................ 194
Fig.134 – Power supply and cable interface block diagram ................................................ 195
Fig.135 – Main and peripheral controller connection ......................................................... 196
Fig.136 – Full-IP protocol stack ..................................................................................... 196
Fig.137 – OSI+IP protocol stack.................................................................................... 197
Fig.138 – IDU telemetry............................................................................................... 197
Fig.139 – IDU loops..................................................................................................... 198
Fig.140 - Front panel of IDU SDH compact...................................................................... 199
Fig.141 - 1+0 ODU...................................................................................................... 203
Fig.142 - 1+1 ODU with branching ................................................................................ 203
Fig.143 - ODU block diagram ........................................................................................ 204
Fig.144 - ATPC operation.............................................................................................. 205
Fig.145 - Frequency reuse system ................................................................................. 205
Fig.146 - Lower view of the ODU 1+1 and ODU 1+0 units................................................. 211Fig.147 - Block diagram of the ODU............................................................................... 212
Fig.148 - 1+0 branching .............................................................................................. 213
Fig.149 - 1+1 hot stand–by branching, 1 antenna (RF relay version).................................. 213
Fig.150 - Branching 1+1 hot stand–by, 1 antenna (version with hybrid) ............................. 214
Fig.151 - 1+1 branching frequency diversity ................................................................... 215
Fig.152 - Signals present on the IDU–ODU coaxial cable................................................... 215
Fig.153 - ATPC functional block diagram......................................................................... 216
Fig.154 - Frequency reuse system ................................................................................. 216
Fig.155 - IDU P/N........................................................................................................ 218
Fig.156 - Label positiobs - ODU AS ................................................................................ 219
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Fig.157 - Equipment most significant data ...................................................................... 220
Fig.158 - Label positions - ODU ALS............................................................................... 221
Fig.159 - Indication of components sensitive to electrostatic charges.................................. 225
Fig.160 - Elasticised band............................................................................................. 225
Fig.161 - Dedicated cord .............................................................................................. 225
Fig.162 - Laser indication ............................................................................................. 225
Fig.163 - WEEE Symbol – 2002/96/CE EN50419 .............................................................. 226
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32 LIST OF TABLES
Tab.1 - Cable and connector characteristics .......................................................................27
Tab.2 – WS1/WS2 connector pin-out for 2 Mbit/s ...............................................................30
Tab.3 – V11 connector pin-out for 64 kbit/s channel - V.11 interface.....................................30
Tab.4 – User in/out connector pin-out for external alarm input and alarm transfer to outside....30
Tab.5 – RS232 connector pin-out for connection to/from supervision system (modular IDU).....31
Tab.6 – RJ45 connector pin-out for 10BaseT Ethernet connection..........................................31
Tab.7 - Pin out of IDU compact RS232 connector................................................................32
Tab.8 - Torques for tightening screws ...............................................................................34
Tab.9 - Torques for tightening screws ...............................................................................35
Tab.10 - Torques for tightening screws..............................................................................48
Tab.11 - Torques for tightening screws..............................................................................48
Tab.12 - Torques for tightening screws..............................................................................61
Tab.13 - Torques for tightening screws..............................................................................82
Tab.14 – Configuration: XPIC 1+0 .................................................................................. 134
Tab.15 – Configuration: XPIC, 1+1, Hot stand-by/Hot stand-by, Space Diversity ..................135
Tab.16 – Configuration: XPIC, 1+1, Frequency Diversity/Frequency Diversity, Space Diversity137
Tab.17 – System version composition ............................................................................. 147
Tab.18 – Cable examples .............................................................................................. 160
Tab.19 - Tx switch........................................................................................................ 160
Tab.20 - Rx switch ....................................................................................................... 161
Tab.21 ........................................................................................................................163
Tab.22 - Service and user interfaces ............................................................................... 175
Tab.23 - Switching criteria priority..................................................................................208
Tab.24 - Artificial breathing ........................................................................................... 224
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33 ASSISTANCE SERVICE
The assistance service provided by Siae Microelettronica will be in compliance, if stipulated, to what spec-
ified in the Agreement of Software Maintenance.
To exploit this service, fill in all its parts the Module for the notification of bad SW operation
(RQ.00961) and send it to the following address:
SIAE Microelettronica S.p.A
via Michelangelo Buonarroti, 21
20093 Cologno Monzese
Milano - Italy
www.siaemic.it
Fax + (39) 02 25391585e-mail [email protected]
33.1 RQ.00961 MODULE
Each RQ916 module can contain at most one signalling.
The information required for the signalling of the bad operation.
Warning. The compiling of the parts General Information (Siae only), Trouble notified by, Reserved to Siae
Department and Validation manager are at charge of the Siae personnel.
Section – Trouble Identification
- SIAE product name. Identifier or SIAE code of the product whose bad operation has been detected.
- Version. Version of the sw product whose bad operation has been detected
- Documentation Type. Identifier of the document where the problem has been detected.
- Revision. Revision of the document where the problem has been detected.
- Volume N. Number of the volume of the document where the problem has been detected.
- Page N . Number of the page, into the volume, where the problem has been detected.
- Typology. Severity of the detected bad operation:
- Critical, if it prevents the use of a main functionality of the product;
- Important, if it prevents the use of a secondary functionality of the product;
- Disturbing, if occasionally and in difficultly reproducible conditions, it prevents the use of a main
functionality of the product;
- Minor, if very seldom it prevents the use of a secondary functionality without important conse-
quences;
- Suggestion, if no functionality of the product is damaged but some aspects (e.g.: user interface)
can be improved.
- Recurrent . Possibility (Yes) or not (No) to cause the bad operation after the same sequence of inputs
given to the product.
- Repeatable. Possibility (Yes) or not (No) to reproduce the detected bad operation.
- Annexes. Possibility (Yes) or not (No) of annexed to the NM and their possible number.
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236 ALS - MN.00164.E - 001
- Title. Title of the bad operation.
- Description. Clear and concise description of the bad operation, comprehensive of the edge condi-
tions and, when possible and applicable, of the reference to the test (identifier and version of the
technical documentation, test identifier).
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GENERAL INFORMATION (SIAE ONLY)
Object Software Documentation Hardware Number
Submitted Distribution List: Quality Assurance
TROUBLE NOTIFIED BY
Siae Operator Name _______________________________ Date _______________________________
Customer Report Ref. _______________________________ Date _______________________________
Customer Name Reference _______________________________ Tel _______________________________
Company/Dept. _______________________________ e-mail _______________________________
Contract N Address
TROUBLE IDENTIFICATION
SW/FW failures
SIAE product name ___________________________________________________ Version ______
Documentation
Documentation type ___________________________________________________ Revision ______
Volume N. ___________________________________________________
Page N.
Typology Critical Important Disturbing Minor Suggestion
Recurrent Yes No
Repeatable Yes No
Annexes Yes: N° No
Title:
Description (including enviranmental conditions):
RESERVED TO SIAE DEPARTMENT
Trouble Accepted_Open
Rejected Reasons
Notes
Analysis performed by Date Expected Closing Date
CORRECTIVE ACTION DESCRIPTION
FIXED Executed by Date Approved by
VALIDATION
MANAGER
MN Closed
Open
Verified by Date
Notes
Quality Record Module TROUBLE REPORT Issued byTerzo L.
Approved byGaviraghi S.
Date24/09/02
Page1/1
Siae Microelettronicaall rights reserved.
Document Ref.RQ.00961
Rev/Ver003
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