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4-Wire NIM Power Cable
A NIM receives power from the same source as the
carrier by means of a Y-cable. Table B-2 shows the wiring
of the cable. Pin positions are identified by raised
numbers (1 – 4 or 1 – 8) on the Molex connectors. The
connectors are labeled NIM 4-PIN,
–48 VDC SUPPLY, and 3000 CARRIER B/P.
NIM 4-PIN
Wire Color
Pin Number
and Gauge
1
White 22 AWG
3
Red 22 AWG
—
2
Black 22 AWG
—
4
Green/Yellow 22 AWG
—
—
50-Pin Amphenol to Two RJ48C Adapter Pin Assignments
Amphenol
Signal Name
Pin Number
19
20
22
23
44
45
47
48
3981-A2-GN31-20
Table B-2
4-Wire NIM Power Cable Wiring
– 48 VDC SUPPLY
Pin Number
—
—
—
—
Table B-3
Direction
R1
R
R1
R
T1
T
T1
T
November 1996
50-Pin Amphenol to RJ48C
Adapters
The Interface card is connected to a two-port or
eight-port RJ48C adapter using a 50-position cable. Pin
assignments for the two adapters are shown in Tables B-3
and B-4.
Wire Color
and Gauge
1
White 18 AWG
2
White 18 AWG
3
White 16 AWG
4
White 18 AWG
5
White 16 AWG
6
Green/Yellow 22 AWG
7
(No Connection)
8
White 16 AWG
RJ48C Pin Number
W1-2 #1
W1-2 #4
W1-1 #1
W1-1 #4
W1-2 #2
W1-2 #5
W1-1 #2
W1-1 #5
Pin Assignments
3000 CARRIER B/P
Pin Number
4
2
3
1
8
6
7
5
Monitor Pin Number
W1-2 RX #2
W1-2 TX #2
W1-1 RX #2
W1-1 TX #2
W1-2 RX #1
W1-2 TX #1
W1-1 RX #1
W1-1 TX #1
B-3
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