Manualshelf

Install Guide

ManualsBrandsDell ManualsAccess PlatformsPowerSwitch S4048T-ON
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3 RS-232/RJ-45 serial console port 4 PSU2
5 10/100/1000BaseT Ethernet management port
The PSUs are single units that include an integrated fan. You can individually replace the separate fan units however if the integrated PSU
fan fails, you must replace the entire PSU. For fan tray replacement procedures, see Fans.
WARNING: Prevent exposure and contact with hazardous voltages. Do not attempt to operate this system with the safety cover
removed.
CAUTION: Remove the power cable from the PSU before removing the PSU. Also, do not connect the power cable before you
insert the PSU in the chassis.
NOTE: To comply with the GR-1089 Lightning Criteria for Equipment Interfacing with AC or DC Power Ports, use an external
surge protection device (SPD) at the AC or DC input of the switch.
AC power supply installation
NOTE: The PSU slides into the slot smoothly. Do not force a PSU into a slot as this action can damage the PSU or the chassis.
NOTE: Ensure that you correctly install the PSU. When you install the PSU correctly, the power connector is on the right side of
the PSU.
NOTE: When using a single PSU, install a blank plate in the other PSU slot. If you are only using one power supply, Dell EMC
recommends installing the power supply in the rst slot, PSU1, and installing a blank plate in the second slot, PSU2.
1 Remove the PSU slot cover from the S4048T-ON system.
2 Remove the PSU from the electro-static bag.
3 Insert the PSU into the switch PSU slot.
Insert the PSU exposed PCB edge connector rst.
The PSU slot is keyed so that you can only insert the PSU in one orientation.
Figure 17. PSU installation
1
PSU
When you install the PSU correctly, it snaps into place and is ushed with the back of the switch.
4 Plug in the appropriate three-pronged AC cord from the switch PSU to the external power source.
5 If you have a redundant PSU, a second PSU, repeat steps 1 through 4 using the second PSU slot.
NOTE
: The S4048T-ON powers up when you connect the cables between the power supply and the power source.
Power supplies 31