2 Mbit/s Alarm indication signal received
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Alarm identifier P12ScAIS
Information The entire 2 Mbit/s signal received, including timeslot 0, contains AIS.
Alarm category Transmission
ASAP pdhPS
Alarm severity
(default setting)
Information
Reporting state
(default setting)
Not Reported
Local indications –
Cause In the upstream equipment a defect has been detected, and as a consequent
action, AIS has been inserted in the downstream direction.
Actions Locally no actions need to be taken. Analyze the alarm state of the upstream
equipment and take appropriate measures.
Note(s) If tributary timing mode is provisioned, then a Tributary Timing Reference
Switch Request is generated to switch over to another timing source.
If the 2 Mbit/s signal is byte-synchronously mapped into the VC-12 and
timeslot 0 is terminated, then AIS is inserted in the downstream direction.
If the port is operated in ISDN mode, then RDI is inserted in the upstream
direction.
Alarm messages
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365-312-803R7.2
Issue 4, May 2007
Alcatel-Lucent - Proprietary
See notice on first page
1-23
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