Assembling The Dc Input Power Cable - Dell PowerEdge 2950 Instructions Manual

Assembling the DC Input Power Cable

CAUTION:
Before connecting safety ground or power cables to the connector, ensure that the power is removed
from the DC circuit. To ensure that the power is off, locate the circuit breaker on the DC source circuit. Switch the
circuit breaker to the off position and, if available, install an approved safety locking device to the circuit breaker
or switch, to prevent against another person energizing the circuit.
To construct the DC input power cable, perform the following steps:
1 Strip the insulation from the ends of the DC power wires, exposing approximately 4.5 mm
(0.175 inches) of copper wire.
2 Using a hand-crimping tool, crimp a connector contact to each DC power wire.
3 To connect the optional connector ground, insert the green 48 VDC ground into connector housing
position 1 (see Figure 1-1 and Table 1-1).
NOTICE:
Figure 1-1 shows the connector housing and pin locations as viewed from the back of the connector.
4 Insert the black –48 VDC wire into connector housing position 2 (see Figure 1-1 and Table 1-1).
5 Insert the red 48 VDC return wire into connector housing position 3 (see Figure 1-1 and Table 1-1).
Figure 1-1. Tyco Connector 556879-3 Housing Positions (Viewed from Back of Connector)
Table 1-1. Connector Housing Pin Assignments
Pin Description
1 48 VDC ground (optional)
2 –48 VDC
3 48 VDC return
1
2
Wire Color and Size
Green 10 AWG
Black 10 AWG
Red 10 AWG
3
Cabling Instructions for the –48 VDC Power Supply
5