DELL E23S Series User Manual

Figure 48. Assembling the DC Input Power Wires

1.

DC power socket

2.

rubber cap

3.

captive screws (2)

4.

DC power connector

5.

wire –48 V

6.

wire RTN

7.

grounding wire

Removing A DC Power Supply

WARNING: 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.

CAUTION: The system requires one power supply for normal operation. On power-redundant systems, remove and 

replace only one power supply at a time in a system that is powered on.

NOTE: You may have to unlatch and lift the optional cable management arm if it interferes with power supply 

removal. For information about the cable management arm, see the system’s rack documentation.

1.

Disconnect the power wires from the power source and the connector from the power supply you intend to 

remove.

2.

Disconnect the safety ground wire.

3.

Press the release latch and slide the power supply out of the chassis.

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