CDA HCG 730 Users operating instructions Uživatelský manuál stáhnout pdf (Strana 128)

Removing a DC power supply unit

Prerequisites

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.

Steps

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.

Figure 60. Removing and installing a DC power supply

1. release latch 2. power supply status indicator

3. power supply 4. connector

5. power supply handle

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CDA HCG 730 Users operating instructions Uživatelský manuál Strana 128