User's Manual Part 3

Prepare to Leave the Site – continued

Mar 2001

5-3

SCt4812T CDMA BTS Optimization/ATP

DRAFT

Re–connect BTS T1 Spans

and Integrated Frame Modem

Before leaving the site, connect any T1 span TELCO connectors that

were removed to allow the LMF to control the BTS. Refer to Table 5-3

and Figure 5-1 as required.

Table 5-3: T1/E1 Span/IFM Connections

Step Action

1 Connect the 50–pin TELCO cables to the BTS span I/O board 50–pin TELCO connectors.

2 If used, connect the dial–up modem RS–232 serial cable to the Site I/O board RS–232 9–pin

sub D connector.

* IMPORTANT

Verify that you connect both SPAN cables (if removed previously), and the Integrated Frame

Modem (IFM) “TELCO” connector.

Figure 5-1: Site and Span I/O Boards T1 Span Connections

50–PIN TELCO

CONNECTORS

REMOVED

SPAN A CONNECTOR

(TELCO) INTERFACE

TO SPAN LINES

SPAN B CONNECTOR

(TELCO) INTERFACE

TO SPAN LINES

TOP of Frame

(Site I/O and Span I/O boards)

RS–232 9–PIN SUB D

CONNECTOR SERIAL

PORT FOR EXTERNAL

DIAL UP MODEM

CONNECTION (IF USED)

FW00299