User's Manual Part 1

Site Cleanup – continued

MAY 2004

4-75

1X SC480 BTS Hardware Installation, Optimization/ATP, and FRU

PRELIMINARY

Table 4-39: Customer Input Connector Pinouts

Pin Number Description

7 Customer Input 4/8

8 Customer Input 4/8 Return

Output Pinouts

Table 4-40 lists the pinouts for the Customer Output connectors.

Table 4-40: Customer Input Connector Pinouts

Pin Number Description

1 Customer Output 1/3/5/7 NC

2 Customer Output 1/3/5/7 C

3 Customer Output 1/3/5/7 NO

4 Customer Output 2/4/6/8 NC

5 Customer Output 2/4/6/8 C

6 Customer Output 2/4/6/8 NO

Procedure

Follow the procedure in Table 4-41 to attach a ferrite core.

Table 4-41: Procedure for Using Ferrite Core on Customer Input and Output Wires

Step Action

1 Route Customer I/O cables from termination equipment to rear of BTS and connect.

2 At the rear of the BTS, just below the top, are three pairs of connectors for customer defined inputs

and outputs. See Figure 4-48.

3 Connect the cable for Customer Outputs 1 and 2 to BTS connector CUST. OUTPUT 1–2.

Perform the same for the remaining connectors.

4 After connections are made, bundle the wires of CUST. OUTPUT 1–2 and CUST. OUTPUT 3–4

together and place a ferrite core around them. Ensure that the wires will not be pinched prior to

closing and latching the ferrite core.

5 Slide ferrite core as close to the BTS connectors as possible without causing stress. Use a tie–wrap on

the ferrite core side away from the BTS connectors to hold the ferrite core in place.

6 Perform step 4 and step 5 for CUST. OUTPUT 5–6 and CUST. OUTPUT 7–8 and CUST. INPUT

1–4 and CUST. INPUT 5–8.