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

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
»	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 (CON’T)
Setting		SW1/6	SW1/7	SW1/8	SW1/9	SW1/10
»	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.