Removing A DC Power SupplyWARNING: For equipment using –(48–60) V DC power supplies, a qualified electrician must perform all connectionsto DC power and to safety grounds. Do not attempt connecting to DC power or installing grounds yourself. Allelectrical wiring must comply with applicable local or national codes and practices. Damage due to servicing thatis not authorized by Dell is not covered by your warranty. Read and follow all safety instructions that came with theproduct.CAUTION: The system requires one power supply for normal operation. On power-redundant systems, remove andreplace 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 supplyremoval. 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 toremove.2. Disconnect the safety ground wire.3. Press the release latch and slide the power supply out of the chassis.Figure 43. Removing and Installing a DC Power Supply1. connector2. power supply3. power supply status indicator4. release latch5. power supply handleInstalling A DC Power SupplyWARNING: For equipment using –(48–60) V DC power supplies, a qualified electrician must perform all connectionsto DC power and to safety grounds. Do not attempt connecting to DC power or installing grounds yourself. Allelectrical wiring must comply with applicable local or national codes and practices. Damage due to servicing thatis not authorized by Dell is not covered by your warranty. Read and follow all safety instructions that came with theproduct.1. Verify that both the power supplies are the same type and have the same maximum output power.81
