User's Manual

Table Of Contents
Troubleshooting: CSM Checklist – continued
6-22 1X SC 4812T Lite BTS Optimization/ATP FEB 2005
PRELIMINARY
CSM Reference Source
Configuration Error
This problem is caused by an incorrect Reference (Clock) Source
Configuration performed in the field by software download. CSM Kit
Numbers SGLN1145 and SGLN4132 must have the proper Reference
Sources configured, as shown in Table 6-20, to function correctly.
Table 6-20: CSM Reference (Clock) Sources by GPS Type and Kit Number
GPS Type CSM Kit No.
Hardware
Configuration
CSM
Slot No.
Reference Source Configuration
RF GPS
SGLN1145 With GPS Receiver 1
Primary = Local GPS
Backup = HSO
RF GPS
SGLN4132
Without GPS
Receiver
2
Primary = Mate GPS
Backup = HSO
REMOTE SGLN4132ED Without GPS
1
Primary = Remote GPS
Backup = HSO
REMOTE
GPS
SGLN4132ED
or later
Without GPS
Receiver
2
Primary = Remote GPS
Backup = HSO
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 CSM System
Time/GPS and HSO Verification section of 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 that the correct Base Site Position Data
is being used in “surveyed” Mode.
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