User's Manual Part 1

Span Line, RGPS, and RF–GPS Cabling – continued
PRELIMINARY
1X SC480 BTS Hardware Installation, Optimization/ATP, and FRU
MAY 2004
4-66
Connecting Customer–Defined
Inputs to the CBIO
The unit provides eight customer–defined inputs for connection to
external contacts. Each input (a signal/ground pair) is monitored for an
“OPEN” (>50 k Ohms) or “CLOSED” (<3 Ohms) condition.
RGPS or RF–GPS Installation
If RGPS is being installed, proceed to Table 4-36. If RF–GPS is being
installed, proceed to Table 3-6.
Cable Pinout
Figure 4-42 shows the connector pins on cables C and C1. Table 4-35
gives the pinout for cable C and C1.
Figure 4-42: Connector Pins Numbering for Cables C and C1
1
2
3
4
5
6
7
8
9
10
11 12
CONNECTOR FOR
CABLE C
PIN 1
CONNECTOR FOR
CABLE C1
PIN 9
Table 4-35: Pinout for Cables C and C1
Cable C Wire Color Cable C1
Pin Signal Pin
9 DC Ground 1 Blue–Black 15
1 Power 1 Blue 8
8 DC Ground 2 Yellow–Black 14
10 Power 2 Yellow 7
4 Transmit Port (–) Green–Black 9
5 Transmit Port (+) Green 1
2 Receive Port (–) White–Black 12
3 Receive Port (+) White 4
7 No Connect Red–Black No Connect
table continued on next page
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