Installation and Maintenance Manual - Aastra 5000 AMT/PTD/PBX/0058/4/6/EN
Description des sous-ensembles 01/2011 Page 231
Indicators
The indicators described in the following table indicate the operating status of the calls
and frames:
TABLEAU 4.46 PRESENTATION OF LT2 CARD INDICATORS
INDICATOR STATE EXPLANATION
RUN (yellow) Flashing rapidly Card being used
COM (green) Off
On steady
Flashing
Call status:
No signalling over channel D and no ongoing call
At least one ongoing call
Presence of signalling on channel D but no ongoing
call (level 2 established)
Status of the frames:
LOS (red) On Loss Of Synchronisation
LOF (red) On Loss Of Frame
AIS (red) On Alarm Indication Signal
RAI (red) On Remote Alarm Indication (sent by the remote unit to
indicate a local alarm)
ER (red) On Multi-frame alignment loss
BLER (red) On BLock ERror (no incoming signal)
CRCE (red) On Frame errors detected for over 50 ms
BIER (red) On Wrong E bit detected for over 50 ms
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