HwMuseum | Index

UNIDENTIFIED

MULTI-I/O 286

Card Type

Multi I/O card

Chip Set

Unidentified

Maximum Onboard Memory

Unidentified

I/O Options

Serial port (2), Game port, Parallel port

Data Bus

8-bit ISA

CONNECTIONS

Function

Label

Function

Label

Serial port A

CN1

Game port

CN3

Serial port B

CN2

Parallel port

CN4

USER CONFIGURABLE SETTINGS

Function

Label

Position

Parallel port disabled

J1

Open

Parallel port enabled

J1

Closed

Game port disabled

J2

Open

Game port enabled

J2

Closed

Serial port A disabled

J3

Open

Serial port A enabled

J3

Closed

Serial port B disabled

J4

Open

Serial port B enabled

J4

Closed

PARALLEL PORT ADDRESS SELECTION

Setting

Label

Position

LPT1 (378h)

S1/3

Off

LPT2 (278h)

S1/3

On

SERIAL PORT A ADDRESS SELECTION

Setting

S1/1

S1/2

»

COM1 (3F8h)

Off

Off

 

COM3 (3E8h)

Off

On

 

COM5 (3E0h)

On

Off

 

COM7 (330h)

On

On

SERIAL PORT B ADDRESS SELECTION

Setting

S1/4

S1/5

COM2 (2F8h)

Off

Off

COM4 (2E8h)

Off

On

COM6 (2E0h)

On

Off

COM8 (2F0h)

On

On

Note: Must install a 16450 chip in slot U2 to enable serial port B; Or - add 75188/1489 into U7 or 75189/1489 into U6.

SERIAL PORT A INTERRUPT SELECTION

IRQ

S2/3

S2/4

 

IRQ3

Off

On

»

IRQ4

On

Off

SERIAL PORT B INTERRUPT SELECTION

IRQ

S2/5

S2/6

»

IRQ3

Off

On

 

IRQ4

On

Off

PARALLEL PORT INTERRUPT SELECTION

IRQ

S2/1

S2/2

 

IRQ5

Off

On

»

IRQ7

On

Off