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Parallel Connector
2
1
The 25-pin connector is used to connect an external parallel port. The parallel port connects
your PC to a parallel printer. It supports SPP, ECP and EPP.
Allows normal speed operation but in one
SPP
(Standard Parallel Port)
direction only.
Allows parallel port to operate in bidirectional
ECP
mode and at a speed faster than the SPP's data
(Extended Capabilities Port)
transfer rate.
Allows bidirectional parallel port operation at
EPP
maximum speed.
(Enhanced Parallel Port)
Chapter 2 Hardware Installation
Chapter 2
26
25
Parallel
Front Panel Connector
HDD-LED - HDD LED
This LED will light when the hard drive is being accessed.
RESET SW - Reset Switch
This switch allows you to reboot without having to power off the system.
ATX-SW - ATX Power Switch
This switch is used to power on or off the system.
PWR-LED - Power/Standby LED
When the system's power is on, this LED will light. When the system is in the S1 (POS - Power
On Suspend) state, it will blink every second. When the system is in the S3 (STR - Suspend To
RAM) state, it will blink every 4 seconds.
Pin Pin Assignment
3
HDD Power
HDD-LED
5
Signal
7
Ground
9
RST Signal
RESET SW
11
N.C.
27
Front
HDD-LED
Panel
RESET-SW
Pin Pin Assignment
2
LED Power
PWR-LED
4
LED Power
6
Signal
8
Ground
ATX-SW
10
Signal
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1
2
PWR-LED
ATX-SW
11
12
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