Dell PowerEdge T110 Systems Guide De Mise En Route page 6

Connecting the Power Cable
CAUTION:
Be sure to set the voltage selection switch on the power supply for the
voltage that most closely matches the AC power available at your location.
Connect the system's power cable to the system and, if a monitor is used,
connect the monitor's power cable to the monitor.
Securing the Power Cable
Bend the system power cable into a loop as shown in the illustration and
attach to the cable clasp.
4
Getting Started With Your System