Dell PowerVault DL2100 Guide De Mise En Route page 6

Optional — Connecting the Keyboard, Video, and Mouse
Connect the keyboard, mouse, and monitor (optional).
The connectors on the back of your system have icons indicating which cable
to plug into each connector. Be sure to tighten the screws (if any) on the
monitor's cable connector.
Connecting the Ethernet Cable
Connect an Ethernet cable to one of the Ethernet connectors at the back
of the system.
4
Getting Started With Your System