NOTE: 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.

 

 

 

 

 

3

network activity

Flashes a yellow light when the computer is transmitting or

 

 

light

receiving network data. A high volume of network traffic may make

 

 

 

this light appear to be in a steady "on" state.

 

 

 

 

 

4

surround sound

Use the (black) surround sound connector to attach multichannel-

 

 

connector

capable speakers.

 

 

 

On computers with a sound card, use the connector on the card.

 

 

 

 

 

5

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.

 

 

 

 

 

6

line-out/headphone

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

 

 

connector

computer microphone for voice or musical input into a sound or

 

 

 

telephony program.

 

 

 

On computers with a sound card, use the connector on the card.

 

 

 

 

 

8

center/subwoofer

Use the (orange) center/subwoofer connector to attach a center

 

 

LFE connector

speaker or a single subwoofer.

 

 

 

On computers with a sound card, use the connector on the card.

 

 

 

NOTE: The LFE (Low Frequency Effects) Audio channel, found in

 

 

 

digital surround sound audio schemes, carries only low frequency

 

 

 

information of 80 Hz and below. The LFE channel drives a

 

 

 

subwoofer to provide extremely low bass extension. Systems not

 

 

 

using subwoofers can shunt the LFE information to the main

 

 

 

speakers in the surround sound setup.

 

 

 

 

 

9

side surround

Use the (gray) side surround sound connector to attach

 

 

sound connector

multichannel-capable speakers. The side-surround output provides

 

 

 

enhanced surround audio for computers with 7.1 speakers.

 

 

 

On computers with a sound card, use the connector on the card.

 

 

 

 

 

10

USB 2.0 connectors

Use the back, rear-quad USB connectors for devices that typically

 

 

(4) (rear quad)

remain connected, such as printers and keyboards.

 

 

 

NOTE: It is recommended that you use the front USB connectors

 

 

 

for devices that you connect occasionally, such as joysticks,

 

 

 

cameras, or bootable USB devices.

 

 

 

 

 

11

VGA video

If your monitor has a VGA connector, plug it into the VGA connector

 

 

connector

on the computer.

 

 

 

NOTE: If your computer has an add-in video card, connect your

 

 

 

monitor to the add-in card's video connector.

 

 

 

 

 

 

 

 

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Dell C521 specifications Back to Contents