Instruction Manual

CCP Backplane Troubleshooting – continued
DRAFT
SC4812ET BTS Optimization/ATP — CDMA LMF
Apr 2001
6-16
No AMR Control (MGLI2 good)
Table 6-18: 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 BBX2 Control in the Shelf
Table 6-19: 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 BBX2 connectors (both board and backplane)
for damage.
4 Replace the BBX2 with a known good BBX2.
No (or Missing) Span Line Traffic
Table 6-20: BBX2 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 BBX2, replace the
BBX2 with a known good BBX2.
No (or Missing) MCC24 Channel Elements
Table 6-21: No MCC24 Channel Elements
Step Action
1 Verify CEs on a co–located MCC24 (MccType=2)
2 If the problem seems to be limited to 1 MCC24, replace the
MCC24 with a known good MCC24.
– Check connectors (both board and backplane) for damage.
3 If no CEs on any MCC24:
– Verify clock reference to CIO.
6