User's Manual Part 2

CSA System Time – GPS & HSO/MSO Verification – continued
6-48 1X SC480 BTS Hardware Installation, Optimization/ATP, and FRU MAY 2004
PRELIMINARY
Table 6-20: GPS Initialization/Verification
Step Action
2–
Cont
At the completion of the HSO warmup cycle, the HSO clcok output is enabled allowing califd clock
pulses to be detected by the CSA. An integer value should then be displayed in the HSO “Last Phase”
entry of the “sources” command as show below. If the HSO or MSO calibration cycle is not completed
within 2 hours it will be necessary to inspect the HSO or MSO hardware.
43:29:33 CSA>sources
43:29:43
43:29:43 N Source Name Type TO Good Status Last Phase Target Phase Valid
43:29:43 ––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––
43:29:43 0 Local GPS Primary 59 Yes Good 0 0 Yes
43:29:43 1 HSO Backup 3 Yes Bad –xxxxxx –xxxxxx No
43:29:43 2 Not Used
43:29:43 Current reference source number: 0
The HSO or MSO calibration cycle can take as long as 2 hours to complete. The completion of the
HSO or MSO calibration is indicated by a “yes” value in the valid column of the “sources” command
response as shown below. If the HSO or MSO calibration cycle is not complete within 2 hours it will
be necessary to inspect the HSO or MSO hardware.
26:09:33 CSA>sources
26:09:35
26:09:35 N Source Name Type TO Good Status Last Phase Target Phase Valid
26:09:35 ––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––
26:09:35 0 Local GPS Primary 59 Yes Good 0 0 Yes
26:09:35 1 HSO
Backup 3 Yes Bad 8683466 8683466 Yes
26:09:35 2 Not Used
26:09:35 Current reference source number: 0
3
HSO information (underlined text above, verified from left to right) is usually the #1 reference source.
If this is not the case, have the OMC–R determine the correct BTS timing source has been identified in
the database by entering the display bts csmgen command and correct as required using the edit
csm csmgen refsrc command.
NOTE
If any of the above areas fail, verify:
– Verify that HSO had been powered up for at least 15 minutes.
– If “timed out” is displayed in the Last Phase column, suspect the HSO output buffer or oscillator
is defective
– Verify the HSO is FULLY SEATED and LOCKED.
4 Verify the following GPS information (underlined text above):
– GPS information is usually the 0 reference source.
– At least one Primary source must indicate “Status = good” and “Valid = yes” to bring site up.
. . . continued on next page
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