STM-1 MS Remote defect indicator
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Alarm identifier MS1cRDI
Information The STM-1 receive signal contains MS-RDI.
Alarm category Transmission
ASAP sdhMS
Alarm severity
(default setting)
Information
Reporting state
(default setting)
Not Reported
Local indications –
Cause The downstream equipment has detected a receive signal failure, and has
inserted MS-RDI as a consequent action.
Actions Locally no actions need to be taken. Analyze the alarm state of the downstream
equipment and take appropriate measures.
Note(s) The downstream equipment has detected one of the following failure conditions
at its receive side:
• STM-1 MS-AIS (Multiplex Section - Alarm Indication Signal)
• STM-1 LOS (Loss of signal) or
• STM-1 LOF (Loss of frame).
This is reported to the transmitting equipment via the Remote Defect Indication
(RDI) which is used to draw local attention to the remote failure.
Alarm messages
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1-182
Alcatel-Lucent - Proprietary
See notice on first page
365-312-803R7.2
Issue 4, May 2007
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