, (. 6.3). . , . , , .
6.3.
, . ( ). , . ( ) . . 6.24.
. 6.24.
. , .
STM (Synchronous Transport Module) (. 6.4). - , STM-1 ( -1), 155,520 /. STM-1. 4 , , . STM-4 (622 /) STM-16 (2,5 /), STM-64 (10 /) .
6.4.
STM-1 | 155 / | |
STM-4 | 622 / | |
STM-16 | 2,5 / | |
STM-64 | 10 /c |
, , 155 /. , . (mapping).
STM-1
. 6.25. STM-1
. 6.26. STM-1
. 6.27. STM-1
STM-1 3 (. 6.27.):
(pointer, PTR): STM;
(S): , ;
: , (Path overhead - POH), , .
|
|
STM-1 125 . STM-1 1/125 = 8 . , STM-1 64 /, 2430´64=155520 /c.
STM-1 9´270 140 /.
24