Adva FSP 3000R7 - Page 57

b) If the loss through the OSFM exceeds the limits specified in the Module
and System Specification , even after all attempts to clean its interfaces,
return it to ADVA Optical Networking for repair.
Step 15 If a CLSM is not present, proceed to Step 16.
a) If you have not already done so, measure the loss through the CLSM on
the incoming patch which is experiencing problems.
b) If the loss through the CLSM exceeds the limits specified in the Module
and System Specification , even after all attempts to clean its interfaces,
return it to ADVA Optical Networking for repair.
Step 16 If a GSM is not present, proceed to Step 17.
a) If you have not already done so, measure the loss through the GSM on the
incoming patch which is experiencing problems.
b) If the loss through the GSM exceeds the limits specified in the Module and
System Specification , even after all attempts to clean its interfaces, return
it to ADVA Optical Networking for repair.
Step 17 If an OPPM is not present, please proceed to Step 18.
a) If you have not already done so, measure the optical power coming into the
OPPM on both NW and NE links, and the loss through theOPPM when on
a selected link.
b) If the loss through the incoming side of the OPPM is within the limit
specified in the Module and System Specification, proceed to the next
step.
If the loss exceeds the limit, clean the OPPM connectors. If this does not
resolve the issue, return the OPPMto ADVA Optical Networking for repair.
Step 18 If you have not already done so, measure the loss through the CSM (CxD) for
the channel(s) experiencing problems. Then execute the following steps:
a) Combine the loss from the CxM with the loss through the CxD for each
channel measured. That is, add the loss of the CxM for channel 1 to the
loss on the CxD for channel 1.
b) If the loss through either the CxM or CxD exceeds the limits specified in
the Module and System Specification , even after all attempts to clean its
interfaces, return it to ADVA Optical Networking for repair.
Step 19 If an OPPM is not present, please proceed to Step 20.
a) If you have not already done so, measure the optical power coming into the
OPPM on both NW and NE links, and the loss through theOPPM when on
a selected link.
b) If the loss through the incoming side of the OPPM is within the limit
specified in the Module and System Specification, proceed to the next
step.
If the loss exceeds the limit, clean the OPPM connectors. If this does not
resolve the issue, return the OPPMto ADVA Optical Networking for repair.
Step 20 Network receiver for the module. If you have not already done so, measure
the power received by the channel module's network receiver. Please
remember to include the patch cable from the CSM (CxD) or OPPMto the
channel module, as this cable can be faulty. Excluding it may be mean ignoring
the root cause of the issue you are experiencing.
a) If the received optical power is within the channel module's specification,
proceed to Step 21.
FSP 3000R7 Maintenance and Troubleshooting Manual - Product Release 16.2 - Document Issue A 57