Cisco ONS 15454 DWDM Manual page 31

Chapter 1 General Troubleshooting
1.3.7 Sample Trouble Resolutions
The following sample trouble resolutions use PM and TCAs to isolate degrade points.
Symptom
Symptom
78-17742-02
There is a BBE TCA on a single transponder pair.
The transponder input power is out of range.
Possible Cause
Check the input power on the transponder. It should be within the
Recommended Action
specified/supported range.
Possible Cause There are dirty trunk connectors on the transponder.
Check the connector on the trunk port.
Recommended Action
There is a degraded trunk patchcord between the transponder and the DWDM port.
Possible Cause
Recommended Action Check the patchcord on the transponder DWDM port.
There are dirty client connectors on the ADxC-xx.x card transmit port or the
Possible Cause
demultiplexer (DMX) has crossed the near-end TCA.
Check the connector on the OCH port of the ADxC-xx.x card.
Recommended Action
There are dirty client connectors on the ADxC-xx.x card receive port or the
Possible Cause
multiplexer (MUX) has crossed the far-end TCA point.
Recommended Action If an optical channel bypass exists along the line, check the connectors.
There is a BBE TCA on all transponders connected to an ADxB-xx.x card.
The transponder input power is out of range.
Possible Cause
Check the input power on the transponder. It should be within the
Recommended Action
specified/supported range.
There is a dirty connector on the 4MD-xx.x card port.
Possible Cause
Check the connector on the drop port of the 4MD-xx.x card.
Recommended Action
There is a dirty connector on the ADxB-xx.x card drop port, and it has crossed the
Possible Cause
near-end TCA point.
Check the connector on the drop port of the ADxB-xx.x card.
Recommended Action
Possible Cause There is a dirty connector on the ADxB-xx.x card add port and it has crossed the
far-end TCA.
Recommended Action Check the patchcord on the 4MD-xx.x or AD1B-xx.x card.
There is a degraded patchcord between the ADxB-xx.x and 4MD-xx.x cards.
Possible Cause
If an optical band bypass exists along the line, check the band connectors.
Recommended Action
1.3.7 Sample Trouble Resolutions
Cisco ONS 15454 DWDM Troubleshooting Guide, R7.0.1
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