DTK COMPUTER, INC.

MINI 286 COURIER I/O CARD

Card Type

Multi I/O card

Chipset/Controller

Unknown

I/O Options

Parallel port, serial ports (2)

Maximum DRAM

N/A

CONNECTIONS

Purpose

Location

Purpose

Location

Parallel port

CN1

Serial port 2

CN3

Serial port 1

CN2

   

SERIAL PORT CONFIGURATION

Port 1 (CN2)

Port 2 (CN3)

JP2

JP1

»

COM1

COM2

Pins 2 & 3, 4 & 5 closed

Pins 1 & 2 closed

 

COM2

COM1

Pins 1 & 2, 5 & 6 closed

Pins 1 & 2 closed

 

COM3

COM4

Pins 2 & 3, 4 & 5 closed

Pins 3 & 4 closed

 

COM4

COM3

Pins 1 & 2, 5 & 6 closed

Pins 3 & 4 closed

SERIAL PORT INTERRUPT SELECT

Port 1 (CN2)

Port 2 (CN3)

JP3

»

IRQ4

IRQ3

Pins 1 & 2, 5 & 6 closed

 

IRQ3

IRQ4

Pins 2 & 3, 4 & 5 closed

PARALLEL PORT INTERRUPT SELECT

IRQ

System Type

JP4

JP5

»

IRQ7

AT compatible

Open

Pins 3 & 4 closed

 

IRQ5

AT compatible

Closed

Pins 1 & 2 closed

 

IRQ7

XT compatible

Open

Pins 3 & 4 closed

 

IRQ7

XT compatible

Closed

Pins 3 & 4 closed