User Manual

CCP Backplane Troubleshooting – continued

PRELIMINARY 2

SC 4812ET BTS Optimization/ATP – CDMA LMF

July 1999

5-16

No GLI2 Control through Span Line Connection (All GLI2s)

Table 5-16: No GLI2 Control through Span Line Connection (Both

GLI2s)

Step Action

1 Verify C–CCP backplane Shelf ID DIP switch is set correctly.

2 Verify that the BTS and GLI2s are correctly configured in the

OMCR/CBSC data base.

3 Visually check the master GLI2 connector (both board and

backplane) for damage.

4 Replace the master GLI2 with a known good GLI2.

5 Check the span line inputs from the top of the frame to the

master GLI2 for proper connection and damage.

Table 5-17: MGLI2 Control Good – No Control over Co–located

GLI2

Step Action

1 Verify that the BTS and GLI2s are correctly configured in the

OMCR CBSC data base.

2 Check the ethernet for proper connection, damage, shorts, or

opens (refer to the page 3-18 of this manual).

3 Check the appropriate ISB cables connectors and ISB

backplane connectors for proper connection and damage.

4 Visually check all GLI2 connectors (both board and

backplane) for damage.

5 Replace the remaining GLI2 with a known good GLI2.

6 Verify ISB terminations are installed. Check connectors (both

cable and backplane) for damage. Replace the ISB cable with

a known good cable.

NOTE

Externally route the cable to bypass suspect segment.