Note
If you use a single PSU, install a blank plate in the other PSU slot. If you are only using
one PSU, install the power supply in the first slot (PSU 1) and install a blank plate in
the second slot (PSU 2).
Procedure
1. Disconnect the power cable from the PSU.
2. Raise the handle on the PSU.
3. With your index finger over the PSU handle, press the orange lever to the left
with your thumb. Pull the PSU out of the switch and place it on an anti-static
surface.
WARNING
Do not connect the power cord before inserting the PSU in the chassis.
CAUTION
The PSU slides into the slot smoothly. Do not force a PSU into a slot as this
action may damage the PSU or the S4048–ON chassis.
4. Remove the replacement PSU from the electro-static bag.
5. Insert the PSU into the switch PSU slot. Insert the PSU exposed PCB edge
connector first.
The PSU slot is keyed so that the PSU can be fully inserted in one direction
only.
6. Slide the PSU into the switch PSU slot until it snaps in place.
Dell S4048-ON Switch FRUs
DELL EMC CONFIDENTIAL
Replacing a power supply unit
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