User Manual

SCCP Backplane Troubleshooting – continued
08/15/2000
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SC 4812ETL BTS Optimization/ATP
PRELIMINARY
No DC Voltage (+5, +6.5, or +15 Volts) to a Specific GLI2,
BBX2, or Switchboard
Table 6-23: No DC Input Voltage to any SCCP Shelf Module
Step Action
1 Verify steps outlined in Table 6-22 have been performed.
2 Inspect the defective board/module (both board and
backplane) connector for damage.
3 Replace suspect board/module with known good
board/module.
TX and RX Signal Routing
Problems
Table 6-24: No DC Input Voltage to any SCCP Shelf Module
Step Action
1 Inspect all Harting Cable connectors and back–plane
connectors for damage in all the affected board slots.
2 Perform steps outlined in the RF path troubleshooting
flowchart in this manual.
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