About Your Computer—Dell Precision 650 21
1 parallel connector Connect a parallel device, such as a printer, to the parallel connector. If you have a
USB printer, plug it into a USB connector.
NOTE: The integrated parallel connector is automatically disabled if the
computer detects an installed card containing a parallel connector configured to
the same address. For more information, see "System Setup Options."
2 line-out connector Use the green line-out connector (available on computers with integrated sound)
to attach headphones and speakers).
On computers with a sound card, use the connector on the card.
3 line-in connector Use the blue line-in connector (available on computers with integrated sound) 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.
4 mouse connector Plug a standard mouse into the green mouse connector. Turn off the computer
and any attached devices before you connect a mouse to the computer. If you have
a USB mouse, plug it into a USB connector.
If your computer is running the Microsoft
®
Windows
®
2000 or Windows XP
operating system, the necessary mouse drivers have been installed on your hard
drive.
5 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.
• Yellow — A good connection exists between a 1-Gbps (or 1000-Mbps)
connection.
• Off — The computer is not detecting a physical connection to the network.
6 network connector Attach the UTP cable to an RJ45 jack wall plate or to an RJ45 port on a UTP
concentrator or hub and press the other end of the UTP cable into the network
connector until the cable snaps securely into place.
The use of Category 5 wiring and connectors is recommended for our customers’
networks. If Category 3 wiring must be used, force the network speed to 10 Mbps
to ensure reliable operation.
On computers with a network connector card, use the connector on the card.
7 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.
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