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RS-232 DUAL I/O SHORT CARD IO card Settings and Configuration






UNIDENTIFIED

RS-232 DUAL I/O SHORT CARD

Card Type

Serial controller

Chip Set

Unidentified

I/O Options

Serial ports (2)

Hard Drives supported

None

Floppy drives supported

None

Data Bus

8-bit ISA

Card Size

Half-length

CONNECTIONS

Function

Label

Function

Label

Serial Port 1

CN1

Serial Port 2

CN2

SERIAL PORTS CONFIGURATION

Setting

SW1/1

SW1/2

SW1/3

SW1/4

SW1/5

Ľ

Port 1=COM2 Port 2=COM1

Off

Off

Off

Off

Off

 

Port 1=COM1 Port 2=disabled

On

Off

Off

Off

On

 

Port 1=COM2 Port 2=disabled

Off

Off

Off

Off

Off

 

Port 1=COM1 Port 2=COM2

On

On

Off

Off

On

 

Port 1=COM3 Port 2=COM4

Off

Off

On

On

Off

SERIAL PORTS CONFIGURATION (CONíT)

Setting

SW1/6

SW1/7

SW1/8

SW1/9

SW1/10

Ľ

Port 1=COM2 Port 2=COM1

On

On

Off

On

On

 

Port 1=COM1 Port 2=disabled

Off

Off

Off

Off

Off

 

Port 1=COM2 Port 2=disabled

On

Off

Off

On

Off

 

Port 1=COM1 Port 2=COM2

Off

Off

On

Off

Off

 

Port 1=COM3 Port 2=COM4

Off

Off

Off

Off

Off

SERIAL PORT 1 INTERRUPT SELECTION

IRQ

SW1/5

SW1/6

IRQ4

On

Off

IRQ3

Off

On

SERIAL PORT 2 INTERRUPT SELECTION

IRQ

SW1/7

SW1/8

IRQ3

Off

On

IRQ4

On

Off

MISCELLANEOUS TECHNICAL NOTES

If the computer already has serial ports installed the default settings will not work.








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