ADTRAN 1200287L1 Manual de usuario Pagina 52

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Chapter 3. Configuration
3-14 MX2810 M13 User Manual 61185001L1-1
DS3 Alarms
DS2 Alarms
System Alarms
Alarm Description
RAI (Major) The unit is receiving an RAI (yellow) alarm from
the network. This alarm is a signal sent back
toward the source of a failed transmit circuit.
The X-bits (X1 and X2) are set to zero.
LOS (Critical) The unit has lost the network Rx signal.
LOF (Critical) The unit detects a framing loss from the
network.
IDLE (Minor) The unit detects an idle sequence from the
network.
FEAC (Minor) The unit is currently receiving a FEAC alarm
over the DS3 data link.
Alarm Description
RAI (Major) The unit is receiving an RAI (yellow) alarm from
the network across a DS2. This alarm is a signal
sent back toward the source of a failed transmit
circuit. The X-bit is set to zero.
LOF (Major) The unit detects a framing loss from the network
across a DS2.
Alarm Description
Controller Card
A/B Fail (Minor)
Controller Card A/B has failed.
Note: This is a critical alarm when Inactive Card
is not installed or is not working.
Protection
Switch (Minor)
The unit detects a Controller Card protection
switch.
Controller Card
Removed
(Minor)
The unit detects that a Controller Card has been
removed.
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