Dell OptiPlex 740 - Manual (Page 31)

Quick Reference Guide
31
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.