Dell Precision 690: 13 serial connector Connect a serial device, such as a handheld device, to the serial port. If necessary,

13 serial connector Connect a serial device, such as a handheld device, to the serial port. If necessary,: Dell Precision 690

Table of contents

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 1000-Mbps (or 1-Gbps) network

and the computer.

Off — The computer is not detecting a physical connection to the network.

6 network adapter

To attach your computer to a network or broadband device, connect one end

connector

of a network cable to either a network jack or your network or broadband device.

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.

NOTE: Do not plug a telephone cable into the network connector.

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).

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.

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.

8 USB 2.0 connectors (2) It is recommended that you use the front USB connectors for devices that you

connect occasionally, such as flash memory keys, cameras, or bootable USB

devices.

Use the back USB connectors for devices that typically remain connected,

such as printers and keyboards.

9 IEEE 1394 connector Use the IEEE 1394 connector for high-speed data devices such as digital video

cameras and external storage devices.

10 keyboard connector If you have a standard keyboard, plug it into the purple keyboard connector.

If you have a USB keyboard, plug it into a USB connector.

11 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.

12 serial connector Connect a serial device, such as a handheld device, to the serial port. If necessary,

the address for this port can be modified through System Setup (see your User’s

Guide for more information).

13 serial connector Connect a serial device, such as a handheld device, to the serial port. If necessary,

the address for this port can be modified through System Setup (see your User’s

Guide for more information).

20 Quick Reference Guide