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SOCIALIST REPUBLIC OF VIETNAM

QCVN 96:2015/BTTTT

National technical regulationon electromagnetic compatibility for Short Range Devices (SRD)

operating on frequencies between 9 kHz and 40 GHz

HANOI – 2015

TABLE OF CONTENTS

2

Introduction

QCVN 96:2015/BTTTT is built on basis of ETSI ETSI EN 301 489-3 (2013 - 06) of European Telecommunications Standards Institute (ETSI).

QCVN 96/2015/BTTTT is composed by Research Institute of Posts and Telecommunications, evaluated and approved by Department of Science and Technology, promulgated by Ministry of Information and communicationss with Circular No. /2015/TT-BTTTT date 2015.

QCVN 96:2015/BTTTT National technical regulation

on electromagnetic compatibility for Short Range Devices (SRD) operating on frequencies between 9 kHz and 40 GHz

1. GENERAL REGULATION.

1.1. Adjustment scope

This regulation stipulates the requirements on ElectroMagnetic Compatibility (EMC) for Short Range Devices (SRD) and relevant ancillary equipment operating on frequencies between 9 kHz and 40 GHz

This regulation regulates condition of measurement and test, target assessment, quality criteria for SRD and relevant ancillary equipment.

Technical targets related to antenna port and radiation from enclosure port of radio equipment not in scope of this regulation, stipulated in corresponding product standard, regulation to use radio frequency spectrum effectively.

1.2. Applicable object

This regulation is applied to organizations individuals in Vietnam and foreign country with production, business operation of equipment in scope of adjustment of this Regulation in territory of Vietnam.

1.3. Referenced documents

QCVN 18:2014/BTTTT, National Technical Regulation on ElectroMagnetic Compatibility for radio communication devices.

QCVN 55: 2011/BTTTT, National technical regulation on electromagnetic compatibility for Short Range Devices (SRD) operating on frequencies between 9 kHz and 25 MHz

QCVN 73: 2013/BTTTT, National technical regulation on electromagnetic compatibility for Short Range Devices (SRD) operating on frequencies between 25 MHz and 1 GHz

QCVN 74: 2013/BTTTT, National technical regulation on electromagnetic compatibility for Short Range Devices (SRD) operating on frequencies between 1 GHz and 40 GHz

1.4. Word explanation

1.4.1. Ancillary equipment

Equipment is used in connection with receiver or transmitter. NOTE: An equipment is considered to be an ancillary equipment when:

- Equipment is used with a receiver or a transmitter to create the operation features and/or additional control for radio information equipment (for example, to enhance control to other position or area), and

- Equipment cannot used separately to create independent functions of a receiver or a transmitter, and

- A receiver/transmitter which it connects to can create some anticipated activities such as transmitting and/or receiving without an ancillary equipment (which means it is not a sub-block of the main equipment necessary to maintain the basic function of the main equipment).

1.4.2. Base station equipment

Radio information equipment and/or ancillary equipment used in a fixed position and powered directly or indirectly (which means via grid or AC/DC inverter) by grid network or local DC electricity network.

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Information ports

Digital radio blockStandard 1

Antenna port

Radio blockStandard 1

Radio block

Standard 2Digital radio blockStandard 2

QCVN 96:2015/BTTTT1.4.3. Combined equipment

Any equipment can have two or more functions. NOTE: At least one of these functions is in scope of R&TTE Instruction has radio transmission function. Results of this combination is to create the control and/or additional function for combined equipment.

1.4.4. Continuous phenomena

Electromagnetic noise impacting equipment or specific equipment cannot be classified as known effects.

1.4.5. Enclosure port

Physical boundary of equipment in which electromagnetic filed can radiate and influence.NOTE: In case equipment has integral antenna, this port is not isolated with antenna port

1.4.6. Integral antenna

Antenna cannot be removed when measuring and testing in accordance with notice of manufacturer

1.4.7. Mobile equipment

Receiver, transmitter or transceiver is installed and used on the mean and provided with power from main battery of the mean.

1.4.8. Multi-radio equipment

Radio equipment includes two or more transmitters and/or receivers. It is possible to use different technologies for simultaneous use.

1.4.9. Operating frequency range

Frequency range or radio frequency ranges are determined by equipment under test

1.4.10. Port

Specific interface of equipment (machine) with electromagnetic environment.NOTE: Any connection point on an equipment used to connect cable to/from this equipment is considered to be a port (see Figure 1).

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Enclosure port

AC source port

DC source port

Earthing port

Antenna port

Signal/control port

Telecommunication port

Equipment

QCVN 96:2015/BTTTT

Figure 1 - Ports of equipment

1.4.11. Primary function

Functions of a combination equipment declared by manufacturer, as a main function of the equipment.

1.4.12. Radio communications equipment

Information equipment includes one or more transmitters and/or receivers and/or the parts they use in fixed, mobile or portable applications. NOTE: Equipment can operate with ancillary equipment, but in that case, it cannot depend on ancillary equipment with basic function.

1.4.13. Removable antenna

Antenna can be removed when measuring and testing in accordance with notice of manufacturer

1.4.14. Telecommunication port

Telecommunication/network port is the connecting point for voice, data and signaling used to link the wide dispersion systems via the means directly connected to telecommunication networks (for example: Public switched telecommunication network, integrating multi-service digital network, digital subscriber line,...), local networks (for example Ethernet, Token Ring,...) and relevant networks.NOTE: Port used to connect the parts of ITE system to be measured and tested (for example: RS 232, IEEE1284 (parallel printer), Universal Serial Bus (USB), IEEE 1394 ((””Fire Wire”), etc.) and the use suitable with its function characteristics (for example, the maximum length of cable to port) are not considered to be telecommunication/ network according to this definition.

1.4.15. Receiver

Separate receiver or receiver is a part of transceiver system.

1.4.16. Transmitter

Separate transmitter or transmitting part is a part of transceiver system.

1.4.17. Transient phenomena

The change phenomenon between two continuous stable statuses in a short time compared with considered time.

1.4.18. Short range device - SRD

Equipment with receiving part, transmitting part used for warning, communication and remote access control purposes... Equipment uses any type of modulation to transmit sound (voice/music) or (equivalent/digital) data or both sound (voice/music) and (equivalent/digital) data.

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QCVN 96:2015/BTTTT

1.5. Abbreviated words

CR Continuous phenomena applied to Receiver

Continuous phenomena applied to Receiver

CT Continuous phenomena applied to Transmitter

Continuous phenomena applied to Transmitter

dB Decibel DecibelEMC ElectroMagnetic Compatibility ElectroMagnetic CompatibilityEUT Equipment Under Test Equipment Under Testfo operating frequency operating frequencyRF Radio Frequency Radio Frequencyrms root mean square root mean squareSINAD Ratio of (signal+noise+distortion) to

(noise distortion)Ratio of (signal+noise+distortion) to (noise distortion)

SRD Short Range Device Short Range DeviceTR Transient phenomena applied to

ReceiverTransient phenomena applied to Receiver

TT Transient phenomena applied to Transmitter

Transient phenomena applied to Transmitter

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QCVN 96:2015/BTTTT

2. TECHNICAL REGULATIONS

2.1. Radiation

Requirement on radiation complies with section 2.1 in QCVN 18:2014/BTTTT.

In case for measurement in section 2.1.4 and section 2.1.5 in QCVN 18:2014/BTTTT. Exclusion band of transmitted is applied when transmitter operates on frequency under 30 MHz.

2.2. Immunity

Requirement on immunity complies with section 2.2 in QCVN 18:2014/BTTTT.

Besides, there are some requirements as follows:

- For test method in section 2.2.3 in QCVN 18:2014/BTTTT. Width of tested frequency depends on type of equipment:

+ For type 1 and type 2 equipment, frequency must be equal to 1% of compulsory used frequency;

+ For type 3 equipment, frequency must be equal to 10 % of compulsory used frequency;

- For test method in section 2.2.6 in QCVN 18:2014/BTTTT. Width of tested frequency depends on type of equipment:

+ For type 1 and type 2 equipment, frequency must be equal to 1% of compulsory used frequency on frequency between 5MHz to 80 MHz;

+ For type 3 equipment, frequency must be equal to 10 % of compulsory used frequency on frequency between 5MHz to 80 MHz;

- For test method in section 2.2.8 in QCVN 18:2014/BTTTT. Assessment criteria depend on type of equipment.

For voltage drop equivalent to power reduction of 30% in 10 ms for assessment criteria:

For voltage drop equivalent to power reduction of 60 % in 100 ms for assessment criteria:

+ Apply for type 1 transmitter, CT assessment criteria.

+ Apply for type 2 and type 3 transmitters, TT assessment criteria.

+ Apply for type 1 transmitter, CR assessment criteria.

+ Apply for type 2 and type 3 transmitters, CT assessment criteria.

For voltage discontinuity equal to reduction > 95% in 5,000 ms, apply TT or TR assessment criteria.

2.3. Condition of measurement and test

2.3.1. General regulation

Equipment must be measured in normal measurement condition suitable with the basic standards and relevant products or technical information attached to equipment. They are the information declared by the manufacturer such as temperature range, humidity and source voltage. Write these conditions in measurement and test report.

Configuration and operation mode of equipment must show method of expected use (exploitation) and be written in measurement report when measured.

To measure radiation and immunity, use normal modulation and way to arrange measurement signal must comply with sections from 2.3.1 to 2.3.5.

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QCVN 96:2015/BTTTTWhen EUT’s antenna can be removed, EUT must be tested with antenna adjusted in normal use condition, unless otherwise stipulated.

In this regulation, SRD is divided to 3 groups according to basic specifications of equipment (Table 1).

Table of 1 - group classification according to specifications of equipment

Group Specifications of equipment

I (Digital or equivalent) notice transmission

II (Voice or music) sound transmission

III Other equipment

2.3.2. Arrangement of measurement and test signal

Comply with section A.2 in QCVN 18:2014/BTTTT.

2.3.2.1. How to arrange measurement and test signal in transmitter input

Comply with section A.2.1 in QCVN 18:2014/BTTTT.

Transmitter must be modulated by normal modulation, stipulated for that equipment (see section 2.3.5). If transmitter has no external modulation port, use internal modulation of equipment.

2.3.2.2. How How to arrange measurement and test signal in transmitter output


Unless otherwise separately stipulated for specific equipment, output RF signal when transmitted must be established in maximum output RF capacity for EUT for normal modulation as stipulated in section 2.3.5.

2.3.2.3. How to arrange measurement and test signal in receiver input


Necessary RF signal to join receiver must be modulated by normal modulation, stipulated for that equipment (see section 2.3.5).

RF signal required to receiver is selected in much higher value compared with receiving sensitivity threshold, but it is lower than overload characteristic of receiver.

2.3.2.4. How to arrange measurement and test signal in receiver output


2.3.2.5. Arrangement of measurement and test for receiver and transmitter (as a system)


Receiver and transmitter can be tested together if appropriate. In that case, receiver and transmitter must be placed in test environment and must be exposed with EMC phenomena. Instead of joining output signal of transmitter to measured equipment out of test environment, this signal is joint in that environment to receiver input via signal attenuator to prevent overload to receiver (if necessary).

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QCVN 96:2015/BTTTT 2.3.3. Exclusion band


Frequencies in which SRD is intended to exploit must be excluded from radiation and immunity measurement and test.

Frequencies in which SRD is intended to exploit must be excluded from radiation and immunity measurement and leading emission in transmission method.

No exclusion band is applied for SDR radiation and relevant ancillary equipment.

Measurement of radiation and immunity test in exclusion bands stipulated in section 2.3.3.1 and section 2.3.3.2.

2.3.3.1. Exclusion bands for receiver

Exclusion band for receiver (including when receiver is a part of transceiver) intended to use in band with channel, determined as follows:

- For receiver which is able to operate on a frequency without balance, low frequency of exclusion band is the low frequency of used frequency channel subtracting expanded value in Table 2, high frequency of exclusion band is the high frequency of used frequency channel plus expanded value in Table 2. The calculation of expanded value must base on exploitation frequency.

- For receiver which is able to operate on a frequency with balance, low frequency of exclusion band is the low frequency of balance band subtracting expanded value in Table 2, high frequency of exclusion band is the high frequency of balance band plus expanded value in Table 2. The calculation of expanded value must base on center frequency of balance band. However, if balance band exceeds 10% of high frequency of balance band, expanded value calculated must base on 10% of high value of that balance band.

- For receiver which is able to operate on many frequencies in exploitation frequency band with width lower than 20% of center frequency of exploitation band, low frequency of exclusion band is the low frequency of used frequency band subtracting expanded value in Table 2, high frequency of exclusion band is the high frequency of used frequency band plus expanded value in Table 2. The calculation of expanded value must base on center frequency of exploitation frequency band.

- For receiver which is able to operate on frequencies in all frequency band, wider than determined frequency band above, the immunity test must be implemented on a selected frequency. These selection frequencies must be in 3 space points according to logarithm scale of frequency band. For each tested frequency, low frequency of exclusion band is the low frequency of used frequency channel subtracting expanded value in Table 2, high frequency of exclusion band is the high frequency of used test channel plus expanded value in Table 2. The calculation of expanded value must base on used test frequency.

For wide band receivers, for example, receiver operates in non-channelized frequency bands, low frequency of exclusion band is the low frequency of band expected to exploit subtracting expanded value in Table 2, high frequency of exclusion band is the high frequency of band expected to exploit plus expanded value in Table 2, or total exclusion band is as twice as used frequency band of receiver, focused around center frequency of frequency band expected to use, but must select the higher value.

Table 2 - Exclusion band for SRD

Fo receiver frequency

Exclusion band for SRD

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QCVN 96:2015/BTTTT

Type 1 receiver Type 2 receiver Type 3 receiver

< 300 kHz fo 200 kHz (1) fo 300 kHz (1) fo 300 kHz (1)

300 kHz to<30 MHz fo 2 MHz (1) fo 3 MHz (1) fo 5 MHz (1)

30 MHz to<1 GHz

fo 10 MHz, or

2 % x fo, choose a larger number

fo 15 MHz, or


fo 15 MHz, or


1 GHz to<2.7 GHz fo 75 MHz (2) fo 100 MHz (2) fo 300 MHz (2)

(1) Do not implement measurements under frequency 150 kHz.(2) Exploitation frequencies over 2,7 GHz without exclusion band and without immunity test of frequency over 2,7 GHz.

2.3.3.2. Exclusion bands for transmitter

For exploitation transmitter or expected exploitation transmitter in channelized frequency band, exclusion band must be as 3 times as maximum occupation band width for that service, focused around exploitation frequency.

For wide band transmitter, which means transmitter in non-channelized frequency band, exclusion band must be as twice as frequency band expected to use, focused around center frequency of exploitation frequency band.

In case receiver and transmitter are measured together as a system, determine exclusion band separately for receiver and transmitter, then select the higher value.

2.3.4. Narrowband satisfaction of receiver


2.3.5. Normal test modulation

For type I equipment, with RF carrier, it must be modulated by test signal, representing notices of use selection. Test signal with selected format can include bug split and fix parts. If transmitter has no modulation input, use internal modulation of equipment.

For type II equipment (sound transmission equipment):

- Necessary signal to tested receiver must be established in nominal receiver frequency, modulated by sinusoidal sound frequency with frequency 1,000 Hz, modulation depth is 60% of peak modulation of system;

For type III transmitter, manufacturer must regulate normal modulation type.

2.4. Target assessment

2.4.1. General

Comply with section B.1 in QCVN 18:2014/BTTTT.

Manufacturer must provide information related to product, including:

- Equipment classification is applied according to Table 1 (see section 2.3.1);

- Equipment classification according to declaration of manufacturer according to Table 3 (see section 2.5.1);

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QCVN 96:2015/BTTTT Quality criteria assessment depends on equipment classification (see section 2.3.1)

For equipment, the assessment of quality criteria bases on:

- Maintain operation function;

- The way that lost functions can recover;

- Status of EUT.

Besides:

- For type I equipment: It must be able to access to targets of the equipment by supervision method (monitoring) on reaction of receiver;

- For type II equipment: The reduction of targets in immunity test is stated to be minimum SINAD value, according to dB;

- For type III equipment: Manufacturer must stipulate the way to measure the reduction of targets and how to show measured value.

2.4.2. Equipment can provide continuous information connection


2.4.3. Equipment cannot provide continuous information connection


For type III equipment, manufacturer must always regulate test methods to assess practical level of the targets or the attenuation of targets during and after exposure to EMC.

2.4.4. Ancillary equipment


2.4.5. Equipment classification


2.5. Quality criteria

2.5.1. SRD classification

According to quality criteria, SRD products are divided to 3 equipment types, each type has a series of minimum quality criteria. This classification bases on influence degree on people and/or objects, when the equipment have operation improper to minimum quality criteria on EMC exposure.

Table 3 - Assessment according to information receiving efficiency

Equipment classification Assessment according to information receiving efficiency

1.Communication environment of SRD has high reliability; systems serve people (can physically harm user)

2.Communication environment of SRD has average reliability; can cause inconvenience for user, but it cannot be improved

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QCVN 96:2015/BTTTT

by simple methods

3.

Communication environment of SRD has standard reliability; can cause inconvenience for user, and it can be improved by simple methods (for example, by manual method)

2.5.2. General Quality criteria

Quality criteria for different SRD types (see Table 3) are combined with different equipment types during and after immunity test stipulated in the following sections:

- A quality criteria for immunity test for continuous phenomena;

- B quality criteria for immunity test for discontinuous phenomena;

- Quality criteria for immunity test for power transience exceeding the time period stipulated in section 2.2.

Equipment must satisfy quality criteria stipulated in the following section for SRD type.

2.5.3. Table of quality criteria

Table 4 - Quality criteria

Type 1 equipment

Criteria During test After test

A

Operate as expectedNot lose functionsFor type II equipment, minimum quality must be 12 dB SINADNo satisfaction beyond expectation

Operate as expectedFor equipment group II, the communication line must be maintainedNot lose functionsNo quality attenuationDo not lose your data or programming functions users.

B

Possible loss of function (one or more)No satisfaction beyond expectation

Operate as expectedThe function can be restored lost.No quality attenuationDo not lose your data or programming functions users.

Type 2 equipment

Criteria During test During test

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QCVN 96:2015/BTTTT

A

Operate as expectedNot lose functionsFor type II equipment, minimum quality must be 12 dB SINADNo satisfaction beyond expectation

Operate as expectedFor equipment group II, the communication line must be maintainedNot lose functionsNo quality attenuationDo not lose your data or programming functions users.

B

Can lose function (one or many)No satisfaction beyond expectation

Operate as expectedPossible function manually recover lost.No quality attenuationDo not lose your data or programming functions users.

Type 3 equipment

Criteria During test During test

A và B

Can lose function (one or many)No satisfaction beyond expectation

Operate as expectedFor group II equipment, the communication line may be lost, but it can be restored by the userNo quality attenuationLost functions must be restored

2.5.4. Quality criteria for continuous phenomena applied for transmitter (CT)

For type I and II equipment, including relevant ancillary equipment tested independently, apply section 2.5.3 on A quality criteria of applicable equipment.

For type II and III equipment, require to maintain communication line during test, by appropriate means provided by manufacturer, communication line must be verified to be maintained in each test of series of exposure tests.

In case EUT is a transmitter, tests must be repeated with EUT in standby mode and confirm transmission state does not operate.

2.5.5. Quality criteria for interruption applied for transmitter (TT)

For type I and II equipment, including relevant ancillary equipment tested independently, apply section 2.5.3 on B quality criteria of applicable equipment, except power interruption exceeding time period stipulated in section 2.2.


In case EUT is a transmitter, tests must be repeated with EUT in standby mode and confirm transmission state does not operate.

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QCVN 96:2015/BTTTT2.5.6. Quality criteria for continuous phenomena applied for Receiver (CR)

For type I and II equipment, including relevant ancillary equipment tested independently, apply section 2.5.3 on A quality criteria of applicable equipment


In case EUT is a transceiver, in any condition, any unreasonable radiation should not occur.

2.5.7. Quality criteria for continuous phenomena applied for transmitter (CT)

For type I and II equipment, including relevant ancillary equipment tested independently, apply section 2.5.3 on B quality criteria of applicable equipment, except power interruption exceeding time period stipulated in section 2.2.


In case EUT is a transceiver, in any condition, any unreasonable radiation should not occur. .

2.5.8. Quality criteria for ancillary equipment independently inspected

Comply with section C.4 in QCVN 18:2014/BTTTT.

3. REGULATION ON MANAGEMENT

Short Range Devices operating on frequencies between 9 kHz and 40 GHz and relevant ancillary in scope of adjustment stipulated in section 1.1 must comply with this Regulation.

4. RESPONSIBILITIES OF ORGANIZATION, INDIVIDUAL

Organizations, individuals are responsible for complying with the regulations on duly certificates and declaration of electromagnetic compatibility for Short Range Devices operating on frequencies between 9 kHz and 40 GHz and under the inspection of the State management authority according to current regulations.

5. IMPLEMENTATION

5.1. Department of Telecommunication and Department of Information and communications must be responsible for instructing, developing and managing radio equipment to be suitable with this Regulation.

5.2. In case the regulations stated in this Regulation are changed, supplemented or replaced, follow regulations in new documents./.

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QCVN 96:2015/BTTTT

APPENDIX A

(REFERENCE)

EXAMPLE ON SRD IN THIS REGULATION

A.1. SRD has RF output to 500 mW, exploited in frequency range from 25 MHz to 1 000 MHz

This regulation applies to SRD with output RF radio power level to 500 mW, planned to exploit in the frequency band from 25 MHz to 1 GHz and related auxiliary equipment in QCVN 73/20113/BTTTT.

A.2. SRD planned to be exploited in frequency range from 25 MHz and induction loop system for frequency range from 9 kHz to 30 MHz

This regulation is applied for SRD, used in frequency band between 9 kHz to 25 MHz and relevant ancillary equipment. Definition on SRD and relevant ancillary equipment is stated in QCVN 55:2011/BTTTT.

A.3. SRD used in frequency range from 1 GHz to 40 GHz

This regulation is applied for SRD, used in frequency band between 1 GHz to 40 GHz with power level to 4W and relevant ancillary equipment. Definition on SRD and relevant ancillary equipment is stated in QCVN 74:2013/BTTTT.

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QCVN 96:2015/BTTTT

REFERENCE DIRECTORY

[1] ETSI EN 301 489-3: 2002 “Electromagnetic compatibility and Radio spectrum Matters (ERM); ElectroMagnetic compatibility (EMC) standard for radio equipment and services; Part 3: Special conditions for SRD operating on frequencies between 9 kHz and 40 GHz”.

[2] ETSI EN 301 489-3 V1.6.1 (2013-08) “Electromagnetic compatibility and Radio spectrum Matters (ERM); ElectroMagnetic compatibility (EMC) standard for radio equipment and services; Part 3: Special conditions for SRD operating on frequencies between 9 kHz and 246 GHz”.

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Documents

THIẾT BỊ ĐẦU CUỐI KẾT NỐI VÀO MẠNG VIỄN THÔNG …english.mic.gov.vn/Upload/VanBan/QCVN-962015BTTTT.… · Web viewWord explanation. Ancillary equipment ... BỊ