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I/O PLUS

AST RESEARCH, INC.

I/O PLUS

Card Type

Multi-I/O card

Chip Set

8250

Maximum Onboard Memory

Unidentified

I/O Options

Parallel port, serial port, DTE connector, DCE connector

Data Bus

8-bit ISA

Floppy drives supported

None

CONNECTIONS

Function

Label

Function

Label

Serial port

J1

DCE connector

J3

DTE connector

J2

Parallel printer port

J4

USER CONFIGURABLE SETTINGS

Function

Label

Position

 

DTE enabled

JP1

Pins 1 & 2 closed

 

DCE enabled

JP1

Pins 3 & 4 closed

Factory configured - do not alter

C1

Unidentified

Factory configured - do not alter

C2

Unidentified

 

Serial port enabled

S2

Closed

 

Serial port disabled

S2

Open

Factory configured - do not alter

P1

Unidentified

Factory configured - do not alter

P2

Unidentified

INTERRUPT SELECTION

IRQ

2S

2C

3S

3

4

5S

5C

IRQ2

Closed

Open

Open

Open

Open

Open

Open

IRQ2(B)

Open

Closed

Open

Open

Open

Open

Open

IRQ3

Open

Open

Closed

Open

Open

Open

Open

IRQ3(B)

Open

Open

Open

Closed

Open

Open

Open

IRQ4

Open

Open

Open

Open

Closed

Open

Open

IRQ5

Open

Open

Open

Open

Open

Closed

Open

IRQ5(B)

Open

Open

Open

Open

Open

Open

Closed

RAM CONFIGURATION

Note: The size and configuration of the memory is unidentified.