Alcatel-Lucent MDR-8000 User Manual page 73

Always troubleshoot and clear the most severe alarm first.
Channel Fail is the most severe, followed by Radio Frame
Loss and Eye Closure.
Loss of radio frame from RCVR in I/O Interface RCVR circuits. Before
starting, check USI for receiver
alarm. If there is a
Command Path
clear that alarm first. If there is a
clear that alarm second.
1. Verify farend radio configuration. Is farend radio hot-standby?
Yes, go to 2.
No, go to 4.
2. Check for Radio Frame Loss alarms on both A and B.
Are there Radio Frame Loss radio frame loss alarms on both A
and B?
Yes, go to 3.
No, only A or B has a frame loss alarm, go to 4.
3. Switch farend XMTRs. Do alarms clear?
Yes, replace farend off-line XMTR.
No, replace local I/O Interface on alarmed side. Do alarms clear?
Yes, stop. Procedure is complete.
No, replace local RCVR on alarmed side.
4. Replace local I/O Interface on alarmed side. Do alarms clear?
Yes, stop. Procedure is complete.
No, replace local RCVR on alarmed side.
Figure 5-6 Troubleshooting Radio RCV Alarms (Sheet 3 of 5)
Note
Channel Fail alarms and
alarm, troubleshoot and
Channel Fail
alarm, troubleshoot and
Command Path
Common
STATUS
Receiver Fault
Receiver On Line
Channel Fail
Eye Closure
Low RSL
Path Distortion
Radio Frame Loss
Radio Dade
RECEIVER
A
MDR-1083
05/20/05
5-15