DIO-200A IO card Settings and Configuration

Card Type	Multi I/O
Chipset/Controller	National Semiconductor
I/O Options	Game, parallel port, serial ports (2)
Maximum DRAM	N/A

CONNECTIONS
Purpose	Location	Purpose	Location
External battery connector	J1	Serial port 2	J4
Serial port 1	J2	Parallel port	J5
Game port	J3

SERIAL PORT CONFIGURATION
Port 1 (J4)		Port 2 (J2)	SW2/switch 2	SW2/switch 3
»	COM1	COM2	On	Off
	COM2	COM3	Off	On
	COM3	COM4	On	On
	Disabled	Disabled	Off	Off

SERIAL PORT INTERRUPT SELECTION
Port 1 (J4)		SW1/switch 3	SW1/switch 4
»	IRQ4	On	Off
	IRQ3	Off	On

SERIAL PORT INTERRUPT SELECTION
Port 2 (J2)		SW1/switch 1	SW1/switch 2
»	IRQ3	On	Off
	IRQ4	Off	On

SERIAL PORT NORMAL/FORCED TRUE CONFIGURATION
Port 1		Port 2	JP3	JP2
»	Normal	Normal	Pins 1 & 2, 4 & 5, 7 & 8 closed	Pins 1 & 2, 4 & 5, 7 & 8 closed
	Forced True	Forced True	Pins 2 & 3, 5 & 6, 8 & 9 closed	Pins 2 & 3, 5 & 6, 8 & 9 closed

SERIAL PORT'S DTE/DCE CONFIGURATION
Primary serial port J4	Secondary serial port J2
Jumper JP4	Jumper JP1

PARALLEL PORT SETTINGS
LPT		SW2/switch 1
»	1	Off
	2	On

PARALLEL PORT INTERRUPTS
IRQ		SW1/switch 5	SW1/switch 6
»	IRQ7	Off	On
	IRQ5	On	Off

CLOCK CONFIGURATION
Clock		SW2/switch 4
»	Enabled	On
	Disabled	Off

CLOCK INTERRUPT SELECT
IRQ		SW2/switch 7	SW2/switch 8
»	2	Off	On
	5	On	Off