Installing A Dc Psu - Dell NX3230 Owner's Manual

NOTE: You may have to unlatch and lift the optional cable management arm if it interferes with PSU
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 PSU you intend to
remove.
2. Disconnect the safety ground wire.
3. Press the release latch and slide the PSU out of the chassis.
Figure 46. Removing and installing a DC PSU
1. release latch
3. PSU
5. PSU handle

Installing a DC PSU

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.
Steps
1. Verify that both the power supplies are of the same type and have the same maximum output power.
NOTE: The maximum output power (shown in watt) is listed on the PSU label.
2. If installed, remove the PSU blank.
3. Slide the new PSU unit into the chassis until the PSU is fully seated and the release latch snaps into
place.
2. PSU status indicator
4. connector
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