LambdaDriver 400 & 800
ML46430, Rev. 07
October 2004
Appendix B:
Troubleshooting
The troubleshooting procedure is given in
. Read the entries in the column
Problem
until
you reach the problem that applies to the LDx00. Then perform the corrective action(s) appearing
in the same row. If the problem persists, note the status of the LEDs and consult your
MRV
representative.
Table 22: Startup and Operation Troubleshooting
No.
Problem
Probable Cause
Corrective Actions
1
Power Supply
LED
PWR
off.
No line (mains) power.
2
Transponder
Module LED
RX
ACC
off.
Cable, access equipment,
or port malfunction.
3
Transponder
Module LED
RX
WDM
off.
Cable or port malfunction.
1. Verify that the LDx00 power
switch is set to the
I
position.
2. Check power cord connection.
3. Check source of power.
4. Check power cord.
1. Check connections, type,
power loss, length, and
integrity of cable
interconnecting transponder
port
ACC RX
and access
equipment.
2. Insure TX to RX
interconnection for each optical
fiber.
3. Clean fiberoptic connectors as
described in
Appendix E:
Cleaning Optical Connectors.
Check the access equipment.
4. Temporarily connect the
access equipment to another
transponder port to determine
if the port is faulty.
1. Check connections and
integrity of cable
interconnecting transponder
WDM RX
port to the Mux,
Demux, or OADM in the same
LDx00.
2. Clean fiberoptic connectors as
described in
Appendix E:
Cleaning Optical Connectors.
3. Temporarily connect the Mux,
Demux, or OADM to another
transponder to determine if the
transponder port is faulty.
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