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D. Pin Assignments
3160-A2-GB21-90 February 2001
D-15
Power Input Connector
The input power connector leads are shown in Table D-11, DC Power Connector.
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.
Optional DC Power Cable
The dc power cable (Figure D-11, DC Power Cable) 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, DC Power Cable 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
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
99-16291
23
546
1