Chapter 3. Configuration
61200290L1-1 MX2800 User Manual 3-17
DS2 Alarms
System Alarms
LOF* The unit detects a framing loss from the net-
work.
XCV The controller card is receiving excessive code
violations, exceeding the threshold set by the
user (see
XCV Threshold
on page 3-4).
*Sounds critical alarm.
Alarm Description
RAI The unit is receiving an RAI (yellow) alarm from
the network across a DS2. This alarm is a sig-
nal sent back toward the source of a failed
transmit circuit. The X-bits (X1 and X2) are set
to zero.
AIS The unit is receiving unframed all ones across
a DS2.
LOF The unit detects a framing loss from the net-
work across a DS2.
Alarm Description
Controller A
Fail*
Controller Card A has failed.
Note: This is a critical alarm only when Card B
is not installed or is not working.
Controller B
Fail*
Controller Card B has failed.
Note: This is a critical alarm only when Card A
is not installed or is not working.
Protection
Switch*
All data has been routed from the primary card
to the stand-by card.
*Sounds critical alarm.
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