Dell K8504 Network adapter, Connector, Attached, Reliable operation, Network activity light, Cap

3	network adapter	To attach your computer to a network or broadband device, connect one end of a
	connector	network cable to either a network jack or your network or 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.
		NOTE: Do not plug a telephone cable into the network connector.
		On computers with a network adapter card, use the connector on the card.
		It is recommended that you use Category 5 wiring and connectors for your network.
		If you must use Category 3 wiring, force the network speed to 10 Mbps to ensure
		reliable operation.
4	network activity light	This light flashes a yellow light when the computer is transmitting or receiving
		network data. A high volume of network traffic may make this light appear to be in a
		steady "on" state.
5	line-in connector	Use the blue line-in connector to attach a record/playback device such as a cassette
		player, CD player, or VCR.
		On computers with a sound card, use the connector on the card.
6	line-out connector	Use the green line-out connector to attach headphones and most speakers with
		integrated amplifiers.
		On computers with a sound card, use the connector on the card.
7	microphone connector	Use the pink microphone connector to attach a personal computer microphone for
		voice or musical input into a sound or telephony program.

On computers with a sound card, the microphone connector is on the card.

8USB 2.0 connectors (6) Connect USB devices such as a mouse, keyboard, memory key, printer, joystick, and computer speakers into any of the USB connectors.

9	video connector	Plug the cable from your VGA-compatible monitor into the blue connector.
		NOTE: If you purchased an optional graphics card, this connector will be covered by
		a cap. Connect your monitor to the connector on the graphics card. Do not remove
		the cap.
		NOTE: If you are using a graphics card that supports dual monitors, use the y-cable
		that came with your computer.
10	serial connector	Connect a serial device, such as a handheld device, to the serial port. The default
		designations are COM1 for serial connector 1 and COM2 for serial connector 2.

For more information, see "System Setup Options" in your online User’s Guide.

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Quick Reference Guide