User's Manual Part 2

CSA System Time – GPS & HSO/MSO Verification – continued

MAY 2004 1X SC480 BTS Hardware Installation, Optimization/ATP, and FRU 6-47

PRELIMINARY

Follow the steps outlined in Table 6-20 to initialize and verify proper

GPS receiver functioning.

Table 6-20: GPS Initialization/Verification

Step Action

1 To verify that Clock alarms (0000), Dpll is locked and has a reference source, and

GPS self test passed messages are displayed within the report, issue the following MMI

command

bstatus

– The system will display a response similar to the following:

Clock Alarms (0000):

DPLL is locked and has a reference source.

GPS receiver self test result: passed

Time since reset 0:33:11, time since power on: 0:33:11

2 Enter the following command at the CSA> prompt to display the current status of the GPS receiver and

HSO or MSO backup reference:

sources

– When equipped with HSO, the system will generate a response similar to the following:

N Source Name Type TO Good Status Last Phase Target Phase Valid

–––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––

LocalGPS Primary 4 YES Good 00Yes

1 HSO Backup 4 YES Good –2013177 –2013177 Yes

2 Not Used

*NOTE “Timed–out” should only be displayed while the HSO is warming up. If the HSO does not

appear as one of the sources, then configure the HSO as a back–up source by entering the following

command at the CSA> prompt:

ss 1 12

The HSO or MSO must complete an initial warmup and calibration cycle before being usable as a

backup reference source. The intial warmup cycle should be completed in less than 15 minutes. During

the warmup cycle, the HSO clock output is disabled and indicated as being “timed out” in the

following response to the “sources command:

43:26:15 CSA>sources

43:26:35

43:26:35 N Source Name Type TO Good Status Last Phase Target Phase Valid

43:26:35–––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––

43:26:35 0 Local GPS Primary 59 Yes Good 0 0 Yes

43:26:35 1 HSO Backup –25 No Bad timed out unknown No

43:26:35 2 Not Used

43:26:35 Current reference source number: 0

See 2–Cont.

. . . continued on next page