9500 MXC User Manual
3DB 23063 ADAA - Rev 004 July 2007 Vol. VI-B-57
Replace the DAC 155oM.
Additional Information
This alarm is returned to the transmitting-end (local) mux upon detection at the
remote-end mux of an incoming LOS, LOF, or AIS defect.
Container x RPSLM
Receive Path Signal Label Mismatch (RPSLM) for container x. Received C2 not
equal to Expected C2 byte value. This is a minor alarm.
Probable Cause
Configuration mismatch.
Recommended Actions
Check configuation of the signal label on the DAC 155oM and its remote mux.
Low Order Path, Container/Trib y in Alarm
Failure in the low order path, container y summary alarm. This is a minor alarm.
Probable Cause
Probable cause is specific to the type of failure:
• RDI (V5[8] set to 1 for 5 consecutive frames)
• AIS (V5[1..3] all 1’s)
• PSLM (Received V5[5..7] not equal to expected V5[5..7])
• LOP (8 invalid pointers received or 8 consecutive enabled NDFs)
• RFI (v5[4] set to 1 for 5 consecutive frames)
Recommended Actions
Check for higher-order alarms on the DAC 155oM and on the remote mux.
If this is the only alarm check if a lower-order path alarm is also present on the
remote mux.
Check its impact on the traffic being transported.
Withdraw, pause, and re-insert the DAC 155oM.
Replace the DAC 155oM.
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