Owners Manual

Assembling The DC Input Power Wires And DC Power Connector

NOTE: For equipment using –(48–60) V DC power supplies, a qualified electrician must perform all connections to DC

power and to safety grounds. Do not attempt connecting to DC power or installing grounds yourself. All electrical wiring

must comply with applicable local or national codes and practices. Damage due to servicing that is not authorized by Dell

is not covered by your warranty. Read and follow all safety instructions that came with the product.

1. Strip the insulation from the ends of the DC power wires, exposing approximately 13 mm (0.5 inch) of copper wire.

NOTE: Reversing polarity when connecting DC power wires can permanently damage the power supply or the

system.

2. Insert the copper ends into the mating connectors and tighten the captive screws at the top of the mating connector using a #2

Phillips screwdriver. The captive screws must be torqued to 16 in lbs (1.8 N-m) to ensure proper cable retention.

NOTE: To protect the power supply from electrostatic discharge, the captive screws must be covered with the

rubber cap before inserting the mating connector into the power supply.

3. Rotate the rubber cap to fix it over the captive screws.

4. Insert the DC power connector into the power supply.

5. Tighten the screws on the wings of the DC power connector.

Figure 42. Assembling the DC Input Power Wires

DC power socket 2. rubber cap

3. captive screws (2) 4. DC power connector

5. wire –48 V 6. wire RTN

7. wings (2)

68 Installing Enclosure Components