User Manual

Troubleshooting: CSM Checklist – continued
6-12 1X SC4812T–MC BTS Optimization/ATP 5/21/04
DRAFT
CSM Reference Source
Configuration Error
This problem is caused by incorrect reference source configuration
performed in the field by software download. CSM kits SGLN1145 and
SGLN4132 must have proper reference sources configured (as shown
below) to function correctly.
CSM Kit
No.
Hardware
Configuration
CSM Slot
No.
Reference Source
Configuration
CDF Value
SGLN1145 With GPS Receiver 1 Primary = Local GPS
Backup = HSO
0
2 or 18
SGLN4132 Without GPS Receiver 2 Primary = Remote GPS
Backup = HSO
1
2 or 18
Takes Too Long for CSM to
Come INS
This problem may be caused by a delay in GPS acquisition. Check the
accuracy flag status and/or current position. Refer to the GSM system
time/GPS and HSO verification section in Chapter 3. At least one
satellite should be visible and tracked for the “surveyed” mode and four
satellites should be visible and tracked for the “estimated” mode. Also,
verify correct base site position data used in “surveyed” mode.
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