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Figure 17. PSU installation
1
Orange release tab
4
Plug in the appropriate AC three-prongs cord from the switch PSU to the external power source.
5
Repeat steps 1 through 4 if you have a redundant PSU.
NOTE:
The S4200-ON Series switch powers up when you connect the cables between the power supply and the power
source.
AC or DC power supply replacement
CAUTION:
Disconnect the power cord before removing the power supplies. Also, disconnect all power cords 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 S4200-
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
NOTE:
If you use a single PSU, install a blank plate in the other PSU slot. If you are only using one power supply, install the power
supply in the first slot, PSU1. Install a blank plate in the second slot, PSU2.
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 cord to the replacement PSU.
NOTE:
The switch powers up when the cables are connected between the power supply and the power source.
Connect DC power supply to power source
Each DC powered switch comes with a set containing a prewired, 3-inch 8 AWG, power supply connector and a four-screw wiring block.
One set is provided for each DC PSU.
32
Power supplies
Dell EMC
support.
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