User Manual

CSM System Time – GPS & LFR/HSO Verification – continued

Jan 2002

3-47

SC4812ET BTS Optimization/ATP — CDMA LMF

CSM Frequency Verification

The objective of this procedure is the initial verification of the CSM

boards before performing the RF path verification tests. Parts of this

procedure will be repeated for final verification after the overall

optimization has been completed.

Test Equipment Setup

(GPS & LFR/HSO Verification)

Follow the steps outlined in Table 3-25 to set up test equipment.

Table 3-25: Test Equipment Setup (GPS & LFR/HSO Verification)

Step Action

1a For local GPS (RF–GPS): Verify a CSM board with a GPS receiver is installed in primary CSM slot 1

and that CSM–1 is INS.

NOTE

This is verified by checking the board ejectors for kit number SGLN1145 on the board in slot 1.

1b For Remote GPS (RGPS):Verify a CSM2 board is installed in primary slot 1 and that CSM–1 is INS.

NOTE

This is verified by checking the board ejectors for kit number SGLN4132ED or later.

2 Remove CSM–2 (if installed) and connect a serial cable from the LMF COM 1 port (via null modem

board) to the MMI port on CSM–1 (see Figure 3-8).

3 Reinstall CSM–2.

4 Start an MMI communication session with CSM–1 by using the Windows desktop shortcut icon (see

Table 3-5)

NOTE

The LMF program must be running when a Hyperterminal session is started.

5 When the terminal screen appears press the Enter key until the CSM> prompt appears.

Connect GPS antenna to the (GPS) RF connector ONLY.

Damage to the GPS antenna and/or receiver can result if

the GPS antenna is inadvertently connected to any other

RF connector.

CAUTION