Specifications

42 | Power Supplies
www.dell.com | support.dell.com
To connect a S4820T DC PSU to the site’s DC power source, follow these steps:
Removing Power Connector from an S4820T DC Power Supply
To remove the power connector from an S4820T DC PSU, squeeze together the levers on both sides of
the connector. Doing so disengages the power connector’s clamps. While continuing to squeeze, pull the
power connector from the DC PSU socket.
Step Task
1 Strip 1/2” of insulation from each of the power connector’s wires (red and black, See Figure 5-2 ).
2 Insert each of the power connector’s bare wire lengths into the wiring block (See Figure 5-2 ). Red into one hole
and black into the other hole.
3 Use a flat-blade screwdriver to tighten the screws, which secures the bare wires into the wiring block.
4 Secure the site’s DC power source wires to the other side of the wiring block (See steps 1 and 3).
WARNING: Make sure not to cross the wires—In the wiring block, red should align with red and
black should align with black (See Figure 5-2 ).
5 Insert the DC power connector into the power socket of the S4820T DC PSU. Make sure that you feel the
connector pins firmly seat and you hear the click of the power connector’s left and right levered clamps lock into
place.
WARNING: Never try to force the power connector into or out of the DC PSU power socket.