User's Manual

Basic Troubleshooting – Span Control Link
May 2000
6-27
SC 4812T CDMA BTS Optimization/ATP
Span Problems (No Control
Link)
Perform the procedure in Table 6-25 to troubleshoot a control link
failure.
Table 6-25: Troubleshooting Control Link Failure
 Step Action
1 Verify the span settings using the span_view command on the active master GLI2 MMI port. If
these are correct, verify the edlc parameters using the
show command. Any alarms conditions
indicate that the span is not operating correctly.
– Try looping back the span line from the DSX panel back to the Mobility Manager (MM) and
verify that the looped signal is good.
– Listen for control tone on appropriate timeslot from Base Site and MM.
2 If no traffic channels in groomed MCC24s (or in whole C–CCP shelf) can process calls, verify
that the ISB cabling is correct and that ISB A and ISB B cables are not swapped.
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