Appendix B Alarms
MX-2100/2104
Installation and Operation Manual
B-6
Alarm Messages
Table B-1. LCD Alarm Messages (Cont.)
Code Message - LCD
Message - Terminal
Alarm
Type
Description
49
AIS RED ALM
AIS RED ALM, SLOT i
State
The local frame synchronization has
been lost because of AIS reception
50
AIS SY LOS
AIS SYNC LOSS,
SLOT i
State
The local frame synchronization has
been lost because of AIS reception
51
RED ALARM
RED ALARM, SLOT i
State
Local main link module lost
synchronization to incoming data
stream. May indicate a configuration
error or a technical failure. For T1 links,
this condition is the red alarm
52
E1.L.SY LOS
E1 LOCAL SYNC LOSS,
SLOT i
State
Local main link module lost
synchronization to incoming data
stream. May indicate a configuration
error or a technical failure. For T1 links,
this condition is the red alarm
53
L MF ALARM
LOCAL MF S.LOSS,
SLOT i
Event
On an E1 link operating with 256S
framing, the local module has lost
multiframe synchronization
54
R MF ALARM
REMOTE MF S.LOSS,
SLOT i
Event
On an E1 link operating with 256S
framing, the remote equipment has lost
multiframe synchronization
55
YELLOW ALM
YELLOW ALARM,
SLOT i
State
Remote equipment lost synchronization
to the incoming data stream. May
indicate a configuration error or a
technical failure. For T1 links, this
condition is the yellow alarm
56
E1.R.SY LOS: A
E1 REMOTE SYNC LOSS
SLOT i
State
The KML.8 module installed in the
specified slot reports remote loss of
frame alignment (ML-A, ML-B)
57
FRAME SLIP
FRAME SLIP, SLOT i
Event
A main link frame slip has occurred. This
is usually caused by incorrect selection
of clock sources
58
BPV ERROR
BPV ERROR, SLOT i
State
The number of coding errors detected in
the main link signal received by the
active module is too high (the bipolar
violation rate exceeds 1
×
10
-6
for 1000
consecutive seconds). This may indicate
a fault in the link or in the link
transmission equipment, or a failure in
the active main link module