Dell OptiPlex 210L User Manual page 99

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 This light flashes yellow 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 to attach a record/playback device such as
connector 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 to attach headphones and most
connector speakers with integrated amplifiers.
On computers with a sound card, use the connector on the card.
7 microphone Use the pink microphone connector to attach a personal computer
connector 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,
connectors such as printers and keyboards.
(4)
9 video Plug the cable from your VGA-compatible monitor into the blue connector.
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.
NOTE: If you are using a graphics card that supports dual monitors, use
the y-cable that came with your computer.
10 serial Connect a serial device, such as a handheld device, to the serial port.
connector The default designation is COM1 for serial connector 1.
For more information, see
Inside Your Computer
CAUTION: Before you begin any of the procedures in this section, follow the safety instructions in the Product Information Guide.
CAUTION: To avoid electrical shock, always unplug your computer from the electrical outlet before removing the computer cover.
NOTICE: Be careful when opening the computer cover to ensure that you do not accidentally disconnect cables from the system board.
1 drives bay (CD/DVD, floppy, and hard drive) 4 card slots
2 power supply
3 system board
System Board Components
"System Setup Options."
5 heat sink assembly
6 front I/O panel