Dell PowerSwitch S4820T Installing the S4820T System - Page 31

Replacing an AC or DC Power Supply, Connecting a DC Power Supply to the Power Source

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NOTE: The system powers up as soon as the cables are connected between the power supply and the power source. Replacing an AC or DC Power Supply 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 S4820T chassis. NOTE: If a PSU fails, you must completely replace it. There are no field serviceable components in the PSU. To request a hardware replacement, refer to Technical Support. NOTE: If you use a single PSU, you must install a blank plate in the other PSU slot. Dell Networking recommends using power supply 1 (PSU1) as the blank plate slot. 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. Tighten the securing screws on the replacement PSU with a screwdriver. Ensure that the PSU is secure. 5. Attach the power cord to the replacement PSU. The system powers up as soon as the cables are connected between the power supply and the power source. Connecting a DC Power Supply to the Power Source Each DC powered S4820T comes with a set containing a pre-wired (3-inch 8AWG) power supply connector and a four-screw wiring block. One set is provided for each DC PSU. Refer to the following figure. Power Supplies 31

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NOTE:
The system powers up as soon as the cables are connected between the power supply and
the power source.
Replacing an AC or DC Power Supply
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 S4820T chassis.
NOTE:
If a PSU fails, you must completely replace it. There are no field serviceable components in
the PSU. To request a hardware replacement, refer to
Technical Support
.
NOTE:
If you use a single PSU, you must install a blank plate in the other PSU slot. Dell Networking
recommends using power supply 1 (PSU1) as the blank plate slot.
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.
Tighten the securing screws on the replacement PSU with a screwdriver. Ensure that the PSU is
secure.
5.
Attach the power cord to the replacement PSU.
The system powers up as soon as the cables are connected between the power supply and the
power source.
Connecting a DC Power Supply to the Power Source
Each DC powered S4820T comes with a set containing a pre-wired (3-inch 8AWG) power supply
connector and a four-screw wiring block. One set is provided for each DC PSU. Refer to the following
figure.
Power Supplies
31