Install Guide

3. Use a flat-head screwdriver to tighten the screws that secures the bare wires into the wiring block.

4. Secure the 550W DC power source wires to the other side of the wiring block, see steps 1 and 3.

NOTE: Do not cross the wires.

5. Insert the 550W DC power connector into the power socket of the 550W DC PSU. Ensure that the connector pins firmly

seat and you hear the click of the left and right levered power connector clamps lock into place.

NOTE: Never try to force the power connector into or out of the 550W DC PSU power socket.

6. Secure the 550W DC power cable to the 550W DC power connector using the attached thumbscrews.

NOTE: To uninstall the power connector from a 550W DC PSU, unscrew the thumbscrews, unplug the 550W DC power

cable, and pull the 550W DC power connector from the 550W DC PSU socket.

1300W DC power connections

Each 1300W DC PSU comes with one 1300W DC cable. The cable ships in a separate plastic bag.

CAUTION: This product must be supplied by a 1300W DC power source rated -48 Vdc to -60 Vdc, 40 A minimum,

and Tma = 45-degree C minimum. The altitude of operation is 5000 m. The product must be supplied by a

UL-Listed DC power source that is separated from AC mains by double or reinforced insulation when the switch

is connected to 1300W DC power. For more information, contact your Dell sales representative.

NOTE: The conductor screw can not be smaller than the conductors supplying power. Secure all screws and ground-wire

connections.

NOTE: Dell Technologies recommends using a 40 A circuit breaker. Before you supply 1300W DC current to the switch,

review the current rating of your protective device.

NOTE: You need a user-supplied flat-head screwdriver to complete this installation.

1. Wiring block

2. DC cable

3. PSU socket

1. Strip a one-half inch section of insulation from each of the power connector wires.

2. Insert each of the bare wire power connector lengths into the wiring block.

The blue wire is -48 V, the black wire is the positive return, and the yellow and green wire is the ground wire, 10 AWG

minimum.

3. Use a flat-head screwdriver to tighten the screws that secures the bare wires into the wiring block.

4. Remove the plastic cover, the two M4 screws and one M5 screw from the PSU socket. Keep all the removed parts.

Power supply