UNIDENTIFIED

AD450 AT I/O CARD

Card Type

Multi I/O card

Chipset/Controller

N/A

I/O Options

Game port, parallel ports (2), serial ports (2)

Maximum DRAM

N/A

CONNECTIONS

Purpose

Location

Purpose

Location

Serial port 1

J1

Game port

J4

Serial port 2

J3

Parallel port

J5

SERIAL PORT CONFIGURATION

Port 1 (J1)

Port 2 (J3)

J2/E

J2/F

J2/G

COM1

COM3

Pins 2 & 3 closed

Open

Pins 1 & 2 closed

COM1

COM4

Pins 1 & 2 closed

Open

Pins 1 & 2 closed

COM4

COM3

Pins 2 & 3 closed

Open

Pins 2 & 3 closed

COM4

COM4

Pins 1 & 2 closed

Open

Pins 2 & 3 closed

COM2

N/A

N/A

Pins 2 & 3 closed

N/A

N/A

COM2

N/A

Pins 1 & 2 closed

N/A

SERIAL PORT INTERRUPT SELECTION

Port 1(J1)

Port 2 (J3)

J2/C

J2/D

»

IRQ4

IRQ3

Pins 1 & 2 closed

Pins 2 & 3 closed

 

IRQ3

IRQ4

Pins 2 & 3 closed

Pins 1 & 2 closed

PARALLEL PORT CONFIGURATION

LPT

J2/B

2

Pins 1 & 2 closed

3

Pins 2 7 3 closed

PARALLEL PORT INTERRUPT SELECTION

IRQ

J2/A

7

Pins 1 & 2 closed

5

Pins 2 & 3 closed