Dell OptiPlex GX270 - Manual (Page 95)

1 back panel connectors Plug serial, USB, and other devices into the appropriate connector.
2 card slots Access connectors for any installed PCI and AGP cards.
3 voltage selection switch (may
not be available on all
computers)
Your computer is equipped with either an auto-sensing voltage selector or a manual voltage selection switch.
Computers with an auto-sensing voltage selector do not have a voltage selection switch on the back panel and can
automatically detect the correct operating voltage.
To help avoid damaging a computer with a manual voltage selection switch, set the switch for the voltage that most
closely matches the AC power available in your location.
Also, ensure that your monitor and attached devices are electrically rated to operate with the AC power available in
your location.
NOTICE: The voltage selection switch must be set to the 115-V position even though the AC power available in
Japan is 100 V.
4 power connector Insert the power cable.
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 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.
3 link integrity light l Green — A good connection exists between a 10-Mbps network and the computer.
l Orange — A good connection exists between a 100-Mbps network and the computer.
l Yellow — A good connection exists between a 1-Gbps (or 1000-Mbps) network and the computer.
l Off — The computer is not detecting a physical connection to the network.
4 network adapter
connector To attach your computer to a network or broadband modem, connect one end of a network cable to either a network jack or your
network 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.
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.
5 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.
6 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.
7 line-out
connector Use the green line-out connector (available on computers with integrated sound) to attach headphones and most speakers with
integrated amplifiers.