Dell 720H2C appendix Back I/O Connectors

1	power connector	Insert the power cable. The appearance of this connector may differ
		from what is pictured.
2	back panel LEDs	Multi-colored lights provide illumination for the I/O panel on the back of
	(2)	the computer.
		NOTE: The color of the back panel LEDs can be adjusted in system
		setup (see System Setup).
3	back I/O	Plug USB and other devices into the appropriate connectors (see Back
	connectors	I/O Connectors).
4	card slots	Access connectors for any installed PCI or PCI Express cards.
		NOTE: Some connector slots support full-length cards.

Back I/O Connectors

1 link integrity light	• Green — A good connection exists between a 10-Mbps
	network and the computer.
	• Orange — A good connection exists between a 100-Mbps
	network and the computer.
	• Yellow — A good connection exists between a 1000-Mbps (1-
	Gbps) network and the computer.
	• Off — The computer is not detecting a physical connection to
	the network.

2network adapter connector

NOTICE: Do not plug a telephone cable into the network adapter connector.

Use the network adapter connector to attach your computer to a network or broadband device. Connect one end of a network cable to either a network jack or your network or broadband device, and then connect the other end of the network cable to the network adapter connector on your computer. A click indicates that the network cable has been securely attached.

On computers with an additional network connector card, use the