363-206-285
Circuit Pack Descriptions
Issue 3 June 2001
7-83
■ Detects STS-1 path AIS
■ Detects VT1.5 path AIS
■ Detects STS-1 LOP
■ Detects VT LOP
■ Inserts VT path AIS
■ Inserts STS-1 path unequipped signal
■ Inserts and detects EC-1 line AIS
■ Inserts and detects line FERF
■ Inserts and detects STS-1 path yellow signal
■ Detects EC-1 line failures (LOS, LOF, AIS, and BER)
■ Detects EC-1 line signal degrade BER.
Maintenance Signal Functions (Low-Speed Mode) 7
The major maintenance signal functions (low-speed mode) are as follows:
■ Detects STS-1 path AIS (VT cross-connected)
■ Detects STS-1 LOP
■ Detects VT LOP (VT cross-connected)
■ Inserts VT path AIS (VT cross-connected)
■ Inserts STS path AIS (STS cross-connected)
■ Inserts STS-1 path unequipped signal
■ Inserts and detects EC-1 line AIS
■ Inserts and detects line FERF
■ Inserts and detects STS-1 path yellow signal (VT cross-connected)
■ Detects EC-1 line failures (LOS, LOF, AIS, and BER)
■ Detects EC-1 line signal degrade BER.
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