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.

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