Cisco GS7000 Installation And Configuration Manual page 72

Chapter 5 Troubleshooting
Improper Configuration of the LCM
An improperly configured LCM can be the cause of this indication. Improperly
configured, for example, can mean that the LCM's configuration does not match the
actual receivers/transmitters mounted in the node. This could happen if the LCM
you are using was previously used in another node.
Complete the following steps to troubleshoot.
1 Verify the LCM configuration. See Configuring the LCM (on page 20) for
instructions on properly configuring the LCM.
2 If the LCM configuration is correct, then follow the procedures in the next
section to check for an operating condition that could cause the alarm.
Real Operating Condition Problems
Use the PC-based ViewPort software to determine what operating condition alarms
exist. ViewPort's displays will lead you to any alarm conditions.
Alarm conditions are indicated in ViewPort by colored boxes around installed
modules and by colored module parameter fields. The color codes are:
Green = Normal

Yellow = Minor Alarm

Red = Major Alarm

If ViewPort shows a module with a yellow or red colored box around it, that
module's status and configuration should be investigated and corrected.
Some typical causes for problems that should be checked include the following:
For a node or hub node, check which receivers and transmitters are shown as

installed in your configuration. The configuration settings must match what is
physically installed and operating.
Check the RX and TX threshold levels. Are they correct? If not, reset the values.

Check the operating power levels against set threshold levels for any alarms.

For a hub node or optical hub, check which EDFA and OPSW modules are

shown as installed in your configuration. The configuration settings must match
what is physically installed and operating.
Check the EDFA and OPSW configuration parameters. Are they correct? If not,

reset the values.
58
WARNING:
Model GS7000 Node and Hub Node forward segmentation is set at the factory
to match the installed FCM. A mismatch between the forward segmentation
and the FCM may cause isolation or loss of service.
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