User Manual

CCP Backplane Troubleshooting – continued
SC4812ET BTS Optimization/ATP — CDMA LMF
Jan 2002
6-16
No AMR Control (MGLI2 good)
Follow the procedure in Table 6-19 for problems with AMR control.
Table 6-19: MGLI2 Control Good – No Control over AMR
Step Action
1 Visually check the master GLI2 connector (both board and backplane) for damage.
2 Replace the master GLI2 with a known good GLI2.
3 Replace the AMR with a known good AMR.
No BBX Control in the Shelf
Follow the procedure in Table 6-20 for problems with co–located GLI2.
Table 6-20: MGLI2 Control Good – No Control over Co–located GLI2s
Step Action
1 Visually check all GLI2 connectors (both board and backplane) for damage.
2 Replace the remaining GLI2 with a known good GLI2.
3 Visually check BBX connectors (both board and backplane) for damage.
4 Replace the BBX with a known good BBX.
No (or Missing) Span Line Traffic
Follow the procedure in Table 6-21 for problems with span line traffic.
Table 6-21: BBX Control Good – No (or Missing) Span Line Traffic
Step Action
1 Visually check all GLI2 connectors (both board and backplane) for damage.
2 Replace the remaining GLI2 with a known good GLI2.
3 Visually check all span line distribution (both connectors and cables) for damage.
4 If the problem seems to be limited to 1 BBX, replace the BBX with a known good BBX.
6