User's Manual

Subscriber Unit (SU) Test and Setup

JAN 2002

7-69

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

DRAFT

Objective

The following procedure is to test and verify the operation of the

Subscriber Unit (SU). This procedure also contains instructions to

program the NAM parameters into the SU prior to operation.

Background

The integral Subscriber Unit (SU) provides a controlled method of

terminating calls within the local BTS for diagnostic purposes. The

SU’s RF is connected to the forward port of the antenna directional

couplers via distribution components to provide a hard–wired path. The

SU performs a system–level test call with audio loopback functionality.

Control of the SU is only available remotely via the dial up modem (or

locally via the MMI). The OMCR–based SALT script is not supported.

The Subscriber Unit Distribution (SUD) is the board that provides RF

splitting and attenuation for the subscriber unit RF signal. The SUD is

an internal module.

Procedure to Test and Verify

Follow the instructions in Table 7-41 to test and verify the operation of

the SU.

Table 7-41: Procedure to Test and Verify the Subscriber Unit

Step Action

1 Connect the LMF computer to the MMI/LMF connector. Refer to Figure 7-6.

2 If you have not already done so, logout of the BTS and exit the LMF. Wait 10 seconds before

proceeding.

3 Establish an MMI communications session with the BTS. Refer to NO TAG.

4 Enter the sndtype 0xa178 command to simulate an LMF session.

5 Make sure the unit has booted into the OOS_RAM state.

6 Enter the following command at the sc300’x–1> prompt to enable SU response printing in the

MMI session:

printf on

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