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I/O MINI EXPANSION I/O CARD

AST RESEARCH, INC.

I/O MINI EXPANSION I/O CARD

Card Type

Parallel card, Serial card

Chip Set

Unidentified

Maximum Onboard Memory

None

I/O Options

Parallel port, serial ports (2)

Data Bus

8-bit ISA

CONNECTIONS

Function

Label

Function

Label

Serial port 1

J1

Serial port 2

J3

Parallel port

J2

   

PARALLEL PORT ADDRESS SELECTION

Setting

E1

E2

E3

 

LPT1

Closed

Open

Open

LPT2

Open

Closed

Open

 

LPT3

Open

Open

Closed

ADDRESS SELECTION

Setting

E6

E7

E8

COM1

Closed

Open

Open

 

COM2

Open

Open

Closed

INTERRUPT SELECTION

IRQ

E4

E5

E9

E10

IRQ3

Closed

Open

Closed

Open

 

IRQ4

Open

Closed

Open

Open

 

IRQ7

Open

Open

Open

Closed

Note: IRQ3 enabled if second serial port is installed.