User's Manual

CSM System Time – GPS and HSO Verification – continued

FEB 2005 1X SC 4812T Lite BTS Optimization/ATP 3-53

PRELIMINARY

GPS Initialization/Verification

Prerequisites

Ensure the following prerequisites have been met before proceeding:

– The Primary CSM and HSO (if equipped) has been warmed–up for

at least 15 minutes.

– The LMF Computer is connected to the MMI Port of the Primary

CSM as shown in Figure 3-11.

– An MMI Communication Session has been started (Table 3-14),

and the CSM> Prompt is present in the HyperTerminal Window

(Table 3-23).

Perform the procedure in Table 3-24 to initialize and verify proper GPS

Receiver Functionality.

Table 3-24: GPS Initialization/Verification Procedure

n Step Action

1 To verify that the following messages are displayed within the report, issue the following MMI

Command.

Clock alarms (0000), Dpll is locked and has a Reference Source

GPS self test passed

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 CSM> Prompt to display the current status of the Timing

Sources.

sources

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

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

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

0 Local GPS Primary 4 Yes Good 3 0 Yes

HSO Backup 4 No N/A timed–out* Timed–out* No

NOTE

Verify that the HSO is FULLY SEATED and LOCKED to prevent any possible card warpage.

“Timed–out” should only be displayed while the HSO is warming up.

“Not–Present” or “Faulty” should not be displayed.

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