Dell 320 manual Back View, See Back-Panel Connectors for details, Options

10	CD/DVD drive	Insert a CD or DVD (if supported) into this drive.
11	location of	Use the Service Tag to identify your computer when you access the Dell
	Service Tag	Support website or call technical support.

Back View

1	card slots	Access connectors for any installed PCI and PCI Express cards.
2	back-panel	Plug serial, USB, and other devices into the appropriate connector.
	connectors	See Back-Panel Connectors for details.
3	power	Insert the power cable into this connector.
	connector
4	voltage	Your computer is equipped with a manual voltage-selection switch. To
	selection	help avoid damaging a computer with a manual voltage-selection switch,
	switch	set the switch for the voltage that most closely matches the AC power
		available in your location.
		NOTICE: In Japan the voltage selection switch must be set to the 115-V
		position.
		Also, ensure that your monitor and attached devices are electrically rated
		to operate with the AC power available in your location.
5	padlock ring	Insert a padlock to lock the computer cover.
6	cover release	Use this latch to open the computer cover.
	latch

Back-Panel Connectors

1	parallel	Connect a parallel device, such as a printer, to the parallel connector. If
	connector	you have a USB printer, plug it into a USB connector.
		NOTE: The integrated parallel connector is automatically disabled if the
		computer detects an installed card containing a parallel connector
		configured to the same address. For more information, see System Setup
		Options.
2	link integrity	• Green — A good connection exists between a 10-Mbps network
	light	and the computer.
		• Orange — A good connection exists between a 100-Mbps network
		and the computer.
		• Off — The computer is not detecting a physical connection to the
		network.
3	network	To attach your computer to a network or broadband device, connect one
	adapter	end of a network cable to either a network jack or your network or
	connector	broadband device. Connect the other end of the network cable to the
		network adapter connector on the back panel of your computer. A click
		indicates that the network cable has been securely attached.