Dell GX280DT - GX280 Desktop Computer User Manual page 194

1 back panel connectors
2 security cable slot
3 padlock ring
4 card slots
5 voltage selection switch (may not be
available on all computers)
6 power connector
1 serial Connect a serial device, such as a handheld device, to the serial port.
connector The default designations are COM1 for serial connector 1 and COM2 for
serial connector 2.
For more information, see "System Setup Options."
2 link integrity Green — A good connection exists between a 10-Mbps network
l
light and the computer.
Orange — A good connection exists between a 100-Mbps network
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and the computer.
Yellow — A good connection exists between a 1-Gbps (or 1000-
l
Mbps) network and the computer.
Off — The computer is not detecting a physical connection to the
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network.
3 network To attach your computer to a network or broadband device, connect one
adapter end of a network cable to either a network jack or your network or
connector 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 Flashes a yellow light when the computer is transmitting or receiving
activity light network data. A high volume of network traffic may make this light
appear to be in a steady "on" state.
5 line-in Use the blue line-in connector (available on computers with integrated
connector 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.
6 line-out Use the green line-out connector (available on computers with
connector integrated sound) to attach headphones and most speakers with
integrated amplifiers.
On computers with a sound card, use the connector on the card.
7 microphone Use the pink microphone connector (available on computers with
connector integrated sound) 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.
8 USB 2.0 Use the back USB connectors for devices that typically remain connected,
Plug serial, USB, and other devices into the
appropriate connector.
Use a security cable with the slot to help secure
your computer.
Insert a padlock to lock the computer cover.
Access connectors for any installed PCI and PCI
Express cards.
See the safety instructions in the Product
Information Guide for more information.
Insert the power cable.