BOCA RESEARCH, INC.

I0AT41, IOAT42

Card Type

Multi-I/O card

Chip Set

Unidentified

Maximum Onboard Memory

Unidentified

I/O Options

Parallel port, serial port

Hard Drives supported

None

Floppy drives supported

None

Data Bus

8-bit ISA

Card Size

Wedge shaped, Half-length

CONNECTIONS

Function

Label

Function

Label

Serial port 2 - internal

CN1

25-pin parallel port - external

CN3

Serial port 1- external

CN2

   

PARALLEL PORT ADRESS SELECTION

Setting

J4/pins 1 & 2

J4/pins 2 & 3

J4/pins 4 & 5

J4/pins 5 & 6

LPT1 (378h)

Closed

Open

Open

Open

LPT2 (278h)

Open

Closed

Open

Open

LPTINT (IRQ7)

Open

Open

Closed

Open

LPTINT (IRQ5)

Open

Open

Open

Closed

Disabled

Open

Open

Open

Open

SERIAL PORT 1 ADDRESS SELECTION

Setting

J5/pins 2 & 4

J5/pins 4 & 6

J5/pins 8 & 10

J5/pins 10 & 12

COM1

Closed

Open

Open

Open

COM2

Open

Closed

Open

Open

COM3

Open

Open

Closed

Open

COM4

Open

Open

Open

Closed

Disabled

Open

Open

Open

Open

SERIAL PORT 2 ADDRESS SELECTION

Setting

J5/pins 1 & 3

J5/pins 3 & 5

J5/pins 7 & 19

J5/pins 9 & 11

COM1

Closed

Open

Open

Open

COM2

Open

Closed

Open

Open

COM3

Open

Open

Closed

Open

COM4

Open

Open

Open

Closed

Disabled

Open

Open

Open

Open

SERIAL PORT 1 INTERRUPT SELECTION

IRQ

J5/pins 14 & 16

J5/pins 16 & 18

J5/pins 20 & 22

J5/pins 22 & 24

IRQ7

Closed

Open

Open

Open

IRQ5

Open

Closed

Open

Open

IRQ4

Open

Open

Closed

Open

IRQ3

Open

Open

Open

Closed

Disabled

Open

Open

Open

Open

SERIAL PORT 2 INTERRUPT SELECTION

IRQ

J5/pins 13 & 15

J5/pins 15 & 17

J5/pins 19 & 21

J5/pins 21 & 23

IRQ7

Closed

Open

Open

Open

IRQ5

Open

Closed

Open

Open

IRQ4

Open

Open

Closed

Open

IRQ3

Open

Open

Open

Closed

Disabled

Open

Open

Open

Open