User's Manual Part 1

Span Line, RGPS, and RF–GPS Cabling – continued
DRAFT
1X SC480 BTS Hardware Installation, Optimization/ATP, and FRU
Jun 2004
4-66
Cable Pin and Signal
Information for Span Cabling
Table 4-33 gives the pin and signal information for the Span cable.
Table 4-33: Pin/Signal Information for Span Cable
BTS Interface Pin Wire/Stripe
Color
Description
1 White/Orange RX RING
2 Orange RX TIP
3 White/Green NC
Span Line Cable
4 Blue TX RING
Span Line Cable
5 White/Blue TX TIP
6 Green NC
7 White/Brown NC
8 Brown NC
Span Cable Procedure
Follow the procedure in Table 4-34 to connect the span cable.
Table 4-34: Procedure to Install 1X or DO Span Cable
Step Action
1 If BTS is configured for 1X operation, proceed to step 1a.
If BTS is confgiured for DO operation, proceed to step 1b.
1a Route 1X span line (Cable D) from site interface panel and connect to Network Span Group 1X
(1X–A) connector at the rear of the BTS.
1b Route DO span line (Cable D) from DO site interface panel and connect to Network Span Group 1 DO
(DO–A) connector at the rear of the BTS.
2 If cable must be made, insert wires into RJ48 connector per Table 3-5.
3 If more than one span cable is used, bundle them together and place ferrite core around cables. Ensure
that the cables are not being pinched before closing and latching the ferrite core.
4 Slide ferrite core as close to the connectors as possible without causing stress. Use a tie–wrap on the
ferrite core side away from the connectors. The tie–wrap holds the ferrite core in place
5 Secure cable to rack using tie–wraps, be sure to leave some slack.
4