Installation Guide

AC or DC power supply replacement
CAUTION: Disconnect the power cable before removing the power supplies. Also, disconnect all power cables before
servicing.
NOTE: The PSU slides into the slot smoothly. Do not force a PSU into a slot as this action may damage the PSU or the
N2200-ON Series switch.
NOTE: If a PSU fails, you must replace the entire unit. There are no field serviceable components in the PSU. To request
a hardware replacement, see www.dell.com/support/.
1. Disconnect the power cable from the PSU.
2. Use the grab handle to slide the PSU out of the power supply bay.
3. Use the grab handle on the replacement PSU to slide it into the power supply bay.
4. Attach the power cable to the replacement PSU.
NOTE: The switch powers up when the cables are connected between the power supply and the power source.
DC power connections
Each DC PSU comes with a connector cable. One cable is provided for each DC PSU.
Figure 4. DC power connector and wiring block
1. Wiring block
2. Power connector
3. PSU connector
1. Strip a one-half inch section of insulation from each of the power connector wires, as shown.
2. Insert each of the bare wire power connector lengths into the wiring block.
The blue wire is -48 V, the black wire is the positive return, and the yellow/green wire is the ground wire, as shown.
3. Use a flat-head screwdriver to tighten the screws that secures the bare wires into the wiring block.
Power supply
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