From the WaveStar^® CIT System View, click the Alarm List button and locate the inc. STSN/VCN alarm in the resulting alarm list.

Determine the alarm level(s) for the active inc. STSN/VCN alarm(s). Clear the alarms in order of severity.

Refer to the Probable Cause column in the alarm list, determine the affected circuit pack, and note the corresponding AID.

Note the source address of the alarm/condition reported (for example, m1-1-1). Based on the circuit layout or other office records, determine the far-end network element where that time slot is originated (for example, cross-connected to a DS1/E1 termination).

Log in to the originating network element.

Reference:

Procedure 6-2: Connect personal computer (PC) and establish WaveStar^® CIT session

From the System View menu, select View → Cross-Connections to obtain a current list of cross-connections.

Are there incomplete or incorrect cross-connections?

From the System View menu, select Configuration → Cross-Connections to access the Cross-Connection Wizard and perform the required provisioning.

From the System View, click the Alarm List button and click Refresh.

Is the inc. STSN/VCN alarm still present?

One at a time, log in to every network element where pass-through cross-connections exist for the service (for example, m1-1-1 to m2-1-1 for STS-N). Select View → Cross-Connections to obtain a current list of cross-connections and determine if the time slot identified in Step 4 is cross-connected as specified in circuit layout or other office records.

If incomplete or incorrect cross-connections exist, select Configuration → Cross-Connections to access the Cross-Connection Wizard and provision the correct pass-through cross-connection (for example, m1-1-1 to m2-1-1 for STS-N).

Reference:

Procedure 6-2: Connect personal computer (PC) and establish WaveStar^® CIT session

From the System View, click the Alarm List button and click Refresh.

Is the inc. STSN/VCN alarm still present?

Check the optical signal level and clean the cable ends if needed. If no problem is found, check the line build-outs (LBOs).

Reference:

Procedure 6-17: Clean optical fibers, dual LC adapters and LC lightguide buildouts (LBOs)

From the System View, click the Alarm List button and click Refresh.

Is the inc. STSN/VCN alarm still present?

NOTICE Service-disruption hazard

Disconnecting cables and/or replacing pluggable transmission modules may disrupt service.

Before taking action, determine the extent of service disruption caused by disconnecting cables or replacing a pluggable transmission module. Then, perform the action(s) deemed appropriate in light of the traffic being carried and the nature of the failure.

Replace the affected local pluggable transmission module.

Reference:

Procedure 6-6: Replace pluggable transmission module

From the System View, click the Alarm List button and click Refresh.

Is the inc. STSN/VCN alarm still present?

NOTICE Service-disruption hazard

Disconnecting cables and/or replacing circuit packs may disrupt service.

Before taking action, determine the extent of service disruption caused by disconnecting cables or replacing a circuit pack. Then, perform the action(s) deemed appropriate in light of the traffic being carried and the nature of the failure.

Replace the terminating circuit pack.

Reference:

Procedure 6-4: Replace VLNC5x SONET/SDH transport circuit pack

End of steps