/ /PDH
/ 2 6.38.
, 1 . 2 4.
f=f/4
.. R>R (2112>2048), . . .
FAS . (JB) (JC).
(JC) - .
(JB) , .. .
(2048 /) , (2112 /).
6.38 / 2
. . .
PDH, , . , - .
/PDH
1 PDH :
;
, ;
, ;
1 2 BIT-12 .
1, , . 2 . 6.8.
6.8 2
| AIS | Alarm Indication Signal | |
| EXBER | Excessive BER | |
| LOF | Loss Of Frame | |
| LOS | Loss Of Signal | 1 |
| LSYNC | Loss Of Synchronization | |
| MRAI (RMAI) | Multiframe Remote Alarm Indication | . 6 MFAS 1 |
| RAI | Remote Alarm Indication | |
| RDI | Remote Defect Indication | |
| RFI | Remote Fault Indication | |
| REBE | Remote End Block Error | |
| SUP | Slip Acknowiedgement |
|
|
|
