STM-1 MS Network connection server signal fail
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Alarm identifier MS1cSSF
Information The STM-1 network connection is unavailable due to faults in the active
Multiplex Section.
These faults are indicated by the reception of MS-AIS, STM-1 LOS, STM-1
LOF, or equipment failures of the STM-1 Synchronous Interface unit.
Alarm category Transmission
ASAP sdhMS
Alarm severity
(default setting)
Prompt
Reporting state
(default setting)
Reported
Local indications The red fault LED is lit.
Cause One or more STM-1 or MS faults in this or upstream network elements, the
effect of which could not be circumvented via protection.
Actions Check for the failed section and repair it.
Note(s) In the downstream direction, AIS is inserted.
In the upstream direction, “Multiplex Section - Remote Defect Indicator”
(MS-RDI) is inserted on STM-1 level.
Alarm messages
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365-312-803R7.2
Issue 4, May 2007
Alcatel-Lucent - Proprietary
See notice on first page
1-183
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