User's Manual

Verify and Set Span Line Settings

JAN 2002

7-37

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

DRAFT

Objective

The following procedure is to verify and configure the BTS Span line

interface for T–1 or E–1 configurations.

Span Line Settings

The following are the span line settings for the BTS span line interface.

 Span A: Primary span

 Span B: Downstream span used for daisy–chaining.

Procedure to Verify and Set

Span Line Settings

Use the procedure in Table 7-19 to verify and set (if necessary) the span

line settings.

Both spans A and B must be set to either T–1 or E–1. The

spans must match the parameters of the CBSC.

IMPORTANT

Table 7-19: Procedure to Verify and Set Span Line Settings

Step Action

1 If you have not already done so, connect the LMF computer terminal to the MMI/LMF connector.

Refer to Table 7-7.

2 Open an MMI communications session. Refer to Table 7-6.

3 Enter the following command at the SC300> prompt to verify the current span settings:

span_config a

The system will display the following output:

Span A data:

Span type: 5 – T1_2 (B8ZS, DS1 AT&T ESF 4 to 1 packing, 64K link)

Link Speed: 64K

Span EQ: 0 – T1_6 (T1, J1:longhaul, same as choice 10)

LAPD slot: 0

4 Enter the following command at the SC300> prompt to verify the current span settings:

span_config b

The system will display the following output:

Span B data:

Span type: 1 – E1_2 (HDB3)

Link Speed: 64K

Span EQ: 16 – E1 (Long haul: 120 Ohm)

LAPD slot: 1

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