G.651.1 " 50 ." , , 1
125 | ||
2 | ||
50 | ||
3 | ||
6% (3 ) | ||
2% | ||
0.20 | ||
0.015 | ||
** | 15 | |
850 | 1 dB | |
1300 | 1 dB | |
0.69 | ||
850 | 500 k | |
1300 | 500 k | |
λ0min | 1295 | |
λ0max | 1340 | |
S0max 1295 ≤ λ0 ≤ 1310 | ≤ 0.105 /2&× | |
S0max 1310 ≤ λ0 ≤ 1340 | ≤ 375 × (1590 λ0) × 106 /2× | |
850 | 3.5 /k | |
1300 | 1.0 /k | |
** [IEC 60793-2-10] ** [IEC 61280-4-1]. *** 850 (S0 = 0.09375 /2× λ0 = 1340 S0 = 0.10125 /2× at λ0 = 1320 ) 104 /× |
, 2007
, 62,5 - , IEC 60793.
() : International Electrotechnical Commission (IEC). . , 793-1-93.
IEC 60793 . . - . . , , IEC 60793-2-60.
, . IEC 60793 ITU-T.
:
A1.1 A1.2: ITU-T G.651.1 ( 50 )
A1b: ITU-T ( 62.5 )
9.4.
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