Manual

C–CCP Backplane Troubleshooting
68P09258A31–A
Oct 2003
1X SCt 4812T BTS Optimization/ATP
6-18
No (or Missing) MCC Channel Elements
Perform the procedure in Table 6-21 to troubleshoot a channel elements
failure.
Table 6-21: No MCC Channel Elements
Step Action
1 Verify MCC channel elements (CEs) are correct. MCCTYPE codes are: MCC8E=0, MCC24E=2,
MCC–1X=3.
2 If the problem seems to be limited to one MCC, replace the MCC with a known good MCC.
Check connectors (both board and backplane) for damage.
3 If no CEs on any MCC:
Verify clock reference to CIO.
6