Connectors

External connectors:

Serial

9-pin connector; 16550C-compatible

Parallel

25-hole connector (bidirectional)

IEEE 1394

front-panel 6-pin serial connector

Video

15-hole connector

Network adapter

RJ45 connector

PS/2 (keyboard and mouse)

two 6-pin mini-DIN

USB

two front-panel and six back-panel USB 2.0–compliant connectors

Audio

five connectors for line-in, line-out, microphone, surround, and

 

center/Low Frequency Effects (LFE) channel; two front-panel

 

connectors for headphones and microphones

System board connectors:

 

Primary IDE drive

40-pin connector on PCI local bus

Serial ATA

four 7-pin connectors

Floppy drive

34-pin connector

Fan

5-pin connector

PCI 2.3

four 120-pin connectors

PCI Express x1

36-pin connector

PCI Express x16

164-pin connector

Telephony (TAPI)

4-pin connector

 

 

Controls and Lights

 

 

 

Power control

push button

Power light

green light — Blinking green in sleep state; solid green for power-on

 

state.

 

amber light — Blinking amber indicates a problem with an installed

 

device; solid amber indicates an internal power problem (see "Power

 

Problems" on page 46).

Hard-drive access light

green

Appendix

117

Page 117
Image 117
Dell U7021, WHL manual 117, Connectors, Center/Low Frequency Effects LFE channel two front-panel, Controls and Lights