99-16291
23
546
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Pin Assignments
D-15
3160-A2-GB21-80
March 1999
Power Input Connector
The input power connector leads are shown in Table D-11. Pin 1 is at the lower
right of the connector and Pin 6 at the upper left as you face the back of the unit.
Table D-11. DC Power Connector
Signal
Pin Number
–48 Vdc Return 1, 2
–48 Vdc A 6
–48 Vdc B 5
+24 Vdc 5
+24 Vdc Return 4
Chassis Ground 3
Optional DC Power Cable
The dc power cable (Figure D-11) is a 14.5-foot, 18 AWG stranded cable. The
connector is terminated at one end with a 6-position connector. The other end of
the cable is terminated with a bare wire that should be connected to a dc power
source. Figure D-11 shows the wire colors. The power source can be either a
single source of +24 Vdc or up to two sources of –48 Vdc (A and B). You cannot
connect +24 Vdc and –48 Vdc to the same unit. See the installation instructions
in Chapter 2,
Installation
.
Figure D-11. DC Power Cable
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