User's Manual

Troubleshooting: SCCP Backplane68P64115A18–1
Mar 2003
1X SC 4812T Lite BTS Optimization/ATP Software Release R2.16.1.x
DRAFT
6-23
No BBX Control in the Shelf
Table 6-23: MGLI Control Good – No Control over Co–located BBXs
Step Action
1 Visually check all GLI connectors (both module and backplane) for damage.
2 Replace the remaining GLI with a known good GLI.
3 Visually check BBX connectors (both module and backplane) for damage.
4 Replace the BBX with a known good BBX.
No (or Missing) Span Line Traffic
Table 6-24: BBX Control Good – No (or Missing) Span Line Traffic
Step Action
1 Visually check all GLI connectors (both module and backplane) for damage.
2 Replace the remaining GLI with a known good GLI.
3 Visually check all span line distribution (both connectors and cables) for damage.
4 If the problem seems to be limited to one BBX, replace the BBX with a known good BBX.
No (or Missing) MCC24E/MCC8E Channel Elements
Table 6-25: No MCC–1X/MCC24E/MCC8E Channel Elements
Step Action
1 Verify channel elements on a co–located MCC of the same type (CDF MccType codes: MCC8E = 0;
MCC24E = 2; MCC–1X = 3)
2 Check MCC connectors (both module and backplane) for damage.
3 If the problem seems to be limited to one MCC, replace it with a known good MCC of the same type.
4 If no channel elements on any MCC, verify clock reference to CIO.
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