Alcatel-Lucent MDR-8000 User Manual page 71

Always troubleshoot and clear the most severe alarm first.
Channel Fail is the most severe, followed by Radio Frame Loss
and Eye Closure.
RECEIVER
STATUS A
Receiver Fault
Receiver On Line
Channel Fail
Eye Closure
Low RSL
Path Distortion
Radio Frame Loss
Radio Dade
Figure 5-6 Troubleshooting Radio RCV Alarms (Sheet 1 of 5)
Note
The Eye Closure alarm, Radio Frame Loss
alarm, and Channel Fail alarm all work together
to form effective 3-level troubleshooting tools. If
the radio is provsioned correctly, Eye Closure
(the first level) should be the first indication that
there is a steady stream of errors (more than
dribbling errors) being detected by the RCV
circuit in the I/O Interface module. The second
level is the Radio Frame Loss alarm. This alarm
indicates that the errors have increased to the
point that complete frames are being lost. The
third level, the Channel Fail alarm, is the most
severe level. This alarm indicates that the RCVR
can no longer lock on the farend XMTR. Even
worse, the overhead with command path and
Service Channel is lost, inhibiting communication
with the farend, making troubleshooting more
difficult.
MDR-1081
05/20/05
5-13