User's Manual

BTS Configuration – continued

JAN 2002

7-27

SC300 1X BTS Hardware Installation, ATP, and FRU Procedures

DRAFT

sources (RGPS or HSO). Under normal operating conditions, the

acquisition states last about 5 minutes.

 The TK state is the DPLL tracking state and is entered at the end of

the acquisition states. The TK state is required for performing ATP.

Procedure to Verify and

Change BTS Synchronization

Mode

The Sync button in the Diagnostic Access Area is used to toggle the

RGPS or HSO as the primary timing reference for the BTS. If the

External indicator in the Diagnostic Access Area is illuminated, the BTS

expects an RGPS to be present for use as the primary timing reference.

If the External indicator is not illuminated, the BTS will use the internal

HSO as the primary timing reference.

Use the procedure in Table 7-10 to verify and, if necessary change the

BTS Sync mode.

Table 7-10: Procedure to Verify and Change BTS Sync Mode

Step Action

1 If an MMI session was established, proceed to step 7. If no MMI session is running, proceed to

step 2.

2 Connect the MMI/LMF.

3 Open an MMI Communication session.

4 Simulate an LMF connection by issuing the sndtype 0xa178 command.

5 Verify that the BTS is in OOS_RAM status by issuing the status command.

6 Enter the sndtype 0x4003 command to change the state to OOS_RAM.

7 Observe the condition of the External indicator.

8 No further action is required if the BTS is in the desired Sync mode. Continue with Step 9 if the

Sync mode needs to be altered.

9 Push the Sync button to change the BTS Sync mode.

10 Reset the BTS using the Reset button in the Diagnostic Access Area.

11 If no additional MMI sessions are required at this time, exit the MMI session and HyperTerminal

connection by selecting File>Exit.

If you are continuing the MMI session, proceed to Table 7-11.