Alcatel-Lucent 1643 AMS Operation Manual page 43

Alarm messages
2 Mbit/s Alarm indication signal received
...................................................................................................................................................................................................................................
Alarm identifier
Information
Alarm category
ASAP
Alarm severity
(default setting)
Reporting state
(default setting)
Local indications
Cause
Actions
Note(s)
...................................................................................................................................................................................................................................
365-312-803R7.2
Issue 4, May 2007
P12ScAIS
The entire 2 Mbit/s signal received, including timeslot 0, contains AIS.
Transmission
pdhPS
Information
Not Reported
–
In the upstream equipment a defect has been detected, and as a consequent
action, AIS has been inserted in the downstream direction.
Locally no actions need to be taken. Analyze the alarm state of the upstream
equipment and take appropriate measures.
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.
Alcatel-Lucent - Proprietary
See notice on first page
1-23