UNIDENTIFIED

A-101 AT I/O CARD

Card Type

Multi I/O card

Chipset/Controller

Unknown

I/O Options

Game port, parallel port, serial ports (2)

Maximum DRAM

N/A

CONNECTIONS

Purpose

Location

Purpose

Location

Serial port 2

CN1

Game port

CN3

Serial port 1

CN2

Parallel port

CN4

SERIAL PORT CONFIGURATION

Port 1 (CN2)

Port 2 (CN1)

S1/A

S1/B

»

COM1

COM2

Open

Open

 

COM2

COM3

Closed

Open

 

COM3

COM4

Closed

Closed

 

COM3

Disabled

Open

Closed

SERIAL PORT INTERRUPT SELECT

Port 1 (CN2)

S2/C

S2/D

»

IRQ4

Closed

Open

 

IRQ3

Open

Closed

SERIAL PORT INTERRUPT SELECT

Port 2 (CN1)

S2/E

S2/F

»

IRQ3

Open

Closed

 

IRQ4

Closed

Open

PARALLEL PORT CONFIGURATION

LPT

S1/C

1

Open

2

Closed

PARALLEL PORT INTERRUPT SELECT

IRQ

S2/A

S2/B

»

IRQ7

Closed

Open

 

IRQ5

Open

Closed

FACTORY CONFIGURED SETTINGS

Switch

Setting

S1/D

N/A

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