TCVN
TIU CHUN QUC GIA
TCVN 8665:2011Xut bn ln 1
SI QUANG DNG CHO MNG VIN THNG YU CU K THUT CHUNGOptical fibre
for telecommunication network - General technical requirements
H NI - 2011
TCVN 8665:2011
2
TCVN 8665:2011 Mc lc1 2 3 4 4.1 4.1.1 4.1.2 4.1.3 4.1.4 4.1.5
4.1.6 4.1.7 4.1.8 4.1.9 4.2 Phm vi p
dng..............................................................................................................................
5 Ti liu vin
dn..............................................................................................................................
5 Thut ng v nh
ngha.................................................................................................................
5 Yu cu k thut i vi cc loi si
quang....................................................................................
9 Yu cu k thut i vi si a
mode....................................................................................
9 ng knh li
...............................................................................................................9
ng knh
v...............................................................................................................9
lch tm gia li v v
.............................................................................................9
khng trn u
.........................................................................................................9
Mt ct chit sut
..........................................................................................................9
m s (NA)
............................................................................................................10
H s suy
hao..............................................................................................................10
Bng thng
..................................................................................................................10
H s tn
sc...............................................................................................................10
Yu cu k thut i vi si n
mode................................................................................10
4.2.1 ng knh trng mode
...........................................................................................10
4.2.2 ng knh
v.............................................................................................................11
4.2.3 ng tm ca
li.....................................................................................................11
4.2.4 ng tm ca ng knh trng mode
................................................................11
4.2.5 khng trn u ca v
...........................................................................................11
4.2.6 Bc sng ct
.............................................................................................................12
4.2.7 H s suy
hao..............................................................................................................12
4.2.8 c tnh suy hao ti bc sng 1550 nm
...................................................................12
4.2.9 H s tn
sc...............................................................................................................12
4.2.10 H s tn sc mode phn cc (PMD)
.........................................................................13
4.2.11 ng sut ko
...............................................................................................................13
Ph lc A (Quy nh) Cc phng php o suy hao, tn
sc.................................................................24
A.1 o suy hao quang bng my o cng
sut...................................................................................24
A.2 o suy hao quang bng my o phn x quang
OTDR...............................................................25
A.3 o tn
sc.....................................................................................................................................27
A.4 o tn sc mode phn cc
PMD..................................................................................................27
Ph lc B (Quy nh) o cc tham s hnh
hc.......................................................................................30
B.1 Mc ch
o...................................................................................................................................30
B.2 Tin hnh
o.................................................................................................................................30
Th mc ti liu tham
kho.....................................................................................................................31
3
TCVN 8665:2011
Li ni uTCVN 8665:2011 chuyn i t TCN 68-160:1996 thnh Tiu chun
Quc gia theo quy nh ti khon 1 iu 69 ca Lut Tiu chun v Quy chun k
thut v im a khon 1 iu 6 Ngh nh s 127/2007/N-CP ngy 1/8/2007 ca Chnh
ph quy nh chi tit thi hnh mt s iu ca Lut Tiu chun v Quy chun k
thut. TCVN 8665:2011 c xy dng trn c s Khuyn ngh G.651.1, G.652,
G.653, G.655 ca Lin minh Vin thng Th gii ITU-T. TCVN 8665:2011 do
Vin Khoa hc K thut Bu in bin son, B Thng tin v Truyn thng ngh, Tng
cc Tiu chun o lng Cht lng thm nh, B Khoa hc v Cng ngh cng b.
4
TCVN 8665:2011
TIU CHUN QUC GIA
TCVN 8665:2011
Si quang dng cho mng vin thng Yu cu k thut chungOptical fibre
for telecommunication network - General technical requirements 1
Phm vi p dng
Tiu chun ny p dng cho cc loi si quang trong cc cp quang s dng
trong mng vin thng nh cp quang treo, cp quang chn trc tip, cp quang
trong cng b, cp quang trong ng hm, cp quang qua sng, cp quang th
bin hoc i ven thm lc a. Tiu chun ny khng bao gm cc ch tiu ca cp
quang nh bn c hc ca cp v bn ca cp i vi tc ng mi trng. Cc ch tiu ny
p dng tiu chun quc gia tng ng.
2
Ti liu vin dn
Cc ti liu vin dn sau y l cn thit p dng tiu chun ny. i vi cc ti
liu vin dn ghi nm cng b th p dng phin bn c nu. i vi cc ti liu vin
dn khng ghi nm cng b th p dng phin bn mi nht, bao gm c cc sa i, b
sung (nu c). ITU-T G.957 (03/2006), Optical interfaces for
equipments and systems relating to the synchronous digital
hierarchy (Cc giao din quang cho thit b v h thng trong phn cp s ng
b) ITU-T G.959.1 (11/2009), Optical transport network physical
layer interfaces (Cc giao din lp vt l ca mng truyn ti quang) ITU-T
G.691 (03/2006), Optical interfaces for single channel STM-64 and
other SDH systems with optical amplifiers (Cc giao din quang cho cc
h thng STM-64 n knh v cc h thng SDH khc c s dng khuch i quang)
ITU-T G.692 (10/1998), Optical interfaces for multichannel systems
with optical amplifiers (Cc giao din quang cho cc h thng a knh c s
dng khuch i quang) ITU-T G.693 (11/2009), Optical interfaces for
intra-office systems (Cc giao din quang cho cc h thng lin vn phng)
ITU-T G.977 (12/2006), Characteristics of optically amplified
optical fibre submarine cable systems (c tnh ca cc h thng cp quang
bin c s dng khuch i quang).
33.1
Thut ng v nh ngha
Li si (core) Phn trung tm ca si quang m phn ln cng sut quang c
truyn trong . 5
