User's Manual

Prepare to Leave the Site68P09258A31–A
Oct 2003
1X SCt 4812T BTS Optimization/ATP
5-9
Re–connect BTS T1/E1 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 5-7
and Figure 5-2 as required.
Table 5-7: 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.
NOTE
Verify that you connect both SPAN cables (if removed previously), and the Integrated Frame
Modem (IFM) “TELCO” connector.
Figure 5-2: 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
5