- ( ) , ;
- 622 / (STM-4) ;
- ( ) ( );
- , .
, : 252 504 1.5 / 2 /, 12 24 34 / 45 /, 4 8 140 /, 6 12 155 / ( 252 504 2 /) 622 /, .
SMA-4 () :
- () , : / - 1+1 - 1: 1.5 2 /, (. 2-42) ;
- / ( - ) 1+1, ' (. 2-33), . 2-29;
- / - ;
- () , STM-1 ( 12 STM-1 VC-12 STM-1 STM-4 );
- , 622 /.
:
:
- - 1.5, 2, 34, 45 140 /, - ITU-T Rec. G.703 155 622 / ITU-T Rec. G.709 [18];
:
- - 1310 - , 1550 - ;
- - ;
- - ITU-T Rec. G.709 [18] ITU-T Rec. G.957 [24].
STM-1:
- - CMI;
- - ITU-T Rec. G.703 [14].
: SMA-4, STM-1, STM-4 STM-16, SMA-16 2.5 /.