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Dell OptiPlex 740 User Manual

Page 20

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20

Quick Reference Guide

3

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. 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 connector 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

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-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.

6

line-in connector

Use the 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.

7

USB 2.0
connectors (5)

Use the back USB connectors for devices that typically
remain connected, such as printers and keyboards.

8

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. Do not remove the cap.
Connect your monitor to the connector on the graphics card.

NOTE:

If you are using a graphics card that supports dual

monitors, use the y-cable that came with your computer.