UNIDENTIFIED

SIO-320 DUAL SERIAL CARD

Card Type

Multi I/O card

Chipset/Controller

N/A

I/O Options

Serial ports (2)

Maximum DRAM

N/A

CONNECTIONS

Purpose

Location

Purpose

Location

Serial port 1

CN1

Serial port 2

CN2

SERIAL PORT CONFIGURATION

Port 1 (CN1)

Port 2 (CN2)

JP1/A

JP1/B

JP1/C

JP1/D

COM1

COM2

Pins 2 & 3

Pins 1 & 2

Open

Open

COM1

COM3

Pins 2 & 3

Open

Pins 1 & 2

Open

COM1

COM4

Pins 2 & 3

Open

Open

Pins 1 & 2

COM2

COM1

Pins 1 & 2

Pins 2 & 3

Open

Open

COM2

COM3

Open

Pins 2 & 3

Pins 1 & 2

Open

COM2

COM4

Open

Pins 2 & 3

Open

Pins 1 & 2

COM3

COM1

Pins 1 & 2

Open

Pins 2 & 3

Open

COM3

COM2

Open

Pins 1 & 2

Pins 2 & 3

Open

COM3

COM4

Open

Open

Pins 2 & 3

Pins 1 & 2

COM4

COM1

Pins 1 & 2

Open

Open

Pins 2 & 3

COM4

COM2

Open

Pins 1 & 2

Open

Pins 2 & 3

COM4

COM3

Open

Open

Pins 1 & 2

Pins 2 & 3

Note: Pins designated should be in the closed position.

SERIAL PORT INTERRUPT SELECTION

Port 1 (CN1)

Port 2 (CN2)

JP2/A

JP2/B

IRQ4

IRQ3

Pins 2 & 3 closed

Pins1 & 2 closed

IRQ3

IRQ4

Pins 1 & 2 closed

Pins 2 & 3 closed