Dell OptiPlex 320 Quick Reference Manual page 19

3 network adapter
connector
4 network activity light
5 line-in connector
6 line-out connector
7 microphone connector
8 USB 2.0 connectors (4)
9 video connector
10 serial 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 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.
This light flashes yellow 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.
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.
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.
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.
Use the back USB connectors for devices that typically remain connected, such as
printers and keyboards.
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.
Connect a serial device, such as a handheld device, to the serial port. The default
designation is COM1 for serial connector 1.
For more information, see your online User's Guide.
Quick Reference Guide
19