Dell Dimension C521 - Back Panel I;O Connectors

16 Setting Up and Using Your Computer
Back Panel I/O Connectors
1 link integrity light • Green — A good connection exists between a 10-Mbps network 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.
2 network adapter
connector
NOTICE: Do not plug a telephone cable into the network connector.
Use the 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, and then connect the other end of the
network cable to the network adapter connector on your computer. A click
indicates that the network cable has been securely attached.
On computers with an additional network connector card, use the connectors on
the card and on the back of the computer when setting up multiple network
connections (such as a separate intra- and extranet).
NOTE: 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.
3 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.
4 surround sound
connector
Use the (black) surround sound connector to attach multichannel-capable
speakers.
On computers with a sound card, use the connector on the card.
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.
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