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PCCOM 8-BIT ISA 4-PORT RS-422 (NEW)

DECISION COMPUTER INTERNATIONAL CO., LTD.

PCCOM 8-BIT ISA 4-PORT RS-422 (NEW)

Card Type

Serial

Chipset

GoldStar

I/O Options

Serial ports (4)

Data Bus

8-bit ISA

CONNECTIONS

Function

Label

Serial ports via DB-37 connector

J1

Note:Standard DB-25 serial ports are provided on an included adapter cable.

USER CONFIGURABLE SETTINGS

Setting

Label

Position

Factory configured - do not alter

J2

Pins 1 & 2 closed

Bus speed set to 16MHz or lower

JP2

Pins 1 & 3 closed

 

Bus speed set higher than 16MHz

JP2

Pins 2 & 4 closed

Factory configured - do not alter

SW1/6

Unidentified

Factory configured - do not alter

SW1/7

Off

Factory configured - do not alter

SW1/8

Off

SERIAL PORT ADDRESSES

Port 1

Port 2

Port 3

Port 4

SW1/1

SW1/2

 

3F8h (COM1:)

2F8h (COM2:)

2B0h

2B8h

On

On

 

3F8h (COM1:)

2F8h (COM2:)

1B0h

1B8h

On

Off

2A0h

2A8h

2B0h

2B8h

Off

On

 

1A0h

1A8h

1B0h

1B8h

Off

Off

INTERRUPT MODE

Setting

SW1/3

SW1/4

SW1/5

Global

Off

Off

On

 

Separate

On

On

Off

PORT 1 INTERRUPT

Setting

JP3/A

JP3/B

JP3/C

JP3/D

JP3/E

JP3/F

IRQ2

Pins 2 & 3

Open

Open

Open

Open

Open

IRQ3

Open

Pins 2 & 3

Open

Open

Open

Open

IRQ4

Open

Open

Pins 2 & 3

Open

Open

Open

IRQ5

Open

Open

Open

Pins 2 & 3

Open

Open

IRQ6

Open

Open

Open

Open

Pins 2 & 3

Open

IRQ7

Open

Open

Open

Open

Open

Pins 2 & 3

Note:Pins designated are in the closed position.

PORT 2 INTERRUPT

Setting

JP3/A

JP3/B

JP3/C

JP3/D

JP3/E

JP3/F

IRQ2

Pins 1 & 2

Open

Open

Open

Open

Open

IRQ3

Open

Pins 1 & 2

Open

Open

Open

Open

IRQ4

Open

Open

Pins 1 & 2

Open

Open

Open

IRQ5

Open

Open

Open

Pins 1 & 2

Open

Open

IRQ6

Open

Open

Open

Open

Pins 1 & 2

Open

IRQ7

Open

Open

Open

Open

Open

Pins 1 & 2

Note:Pins designated are in the closed position.

PORT 3 INTERRUPT

Setting

JP4/A

JP4/B

JP4/C

JP4/D

JP4/E

JP4/F

IRQ2

Pins 2 & 3

Open

Open

Open

Open

Open

IRQ3

Open

Pins 2 & 3

Open

Open

Open

Open

IRQ4

Open

Open

Pins 2 & 3

Open

Open

Open

IRQ5

Open

Open

Open

Pins 2 & 3

Open

Open

IRQ6

Open

Open

Open

Open

Pins 2 & 3

Open

IRQ7

Open

Open

Open

Open

Open

Pins 2 & 3

Note:Pins designated are in the closed position.

PORT 4/GLOBAL INTERRUPT

Setting

JP4/A

JP4/B

JP4/C

JP4/D

JP4/E

JP4/F

 

IRQ2

Pins 1 & 2

Open

Open

Open

Open

Open

 

IRQ3

Open

Pins 1 & 2

Open

Open

Open

Open

 

IRQ4

Open

Open

Pins 1 & 2

Open

Open

Open

IRQ5

Open

Open

Open

Pins 1 & 2

Open

Open

 

IRQ6

Open

Open

Open

Open

Pins 1 & 2

Open

 

IRQ7

Open

Open

Open

Open

Open

Pins 1 & 2

Note:Pins designated are in the closed position.

DIAGNOSTIC LED(S)

The function of the LED is unidentified.