286 I/O PLUS CARD YL-27B IO card Settings and Configuration

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

CONNECTIONS
Purpose	Location	Purpose	Location
Serial port 1	J1	Game port	J3
Serial port 2	J2	Parallel port	J4

SERIAL PORT CONFIGURATION
Port 1 (J1)		Port 2 (J2)	SW1/1	SW1/2	SW1/3	SW1/4
»	COM1	COM2	On	On	Off	Off
	COM1	COM4	On	Off	Off	On
	COM3	COM2	Off	On	On	Off
	COM3	COM4	Off	Off	On	On
	Disabled	COM2	Off	On	Off	Off
	Disabled	COM4	Off	Off	Off	On
	COM1	Disabled	On	Off	Off	Off
	COM3	Disabled	Off	Off	On	Off
	Disabled	Disabled	Off	Off	Off	Off

SERIAL PORT INTERRUPT SELECTION
Port 1 (J1)		Port 2 (J2)	SW1/1	SW1/2	SW1/3	SW1/4
»	IRQ4	IRQ3	On	On	Off	Off
	IRQ4	IRQ3	Off	Off	On	On

PARALLEL PORT CONFIGURATION
LPT		JP2	SW1/5	SW1/6
»	1	Pins 1 & 2 closed	On	Off
	2	Pins 2 & 3 closed	Off	On

GAME PORT CONFIGURATION
Setting		JP1
»	Enabled	Closed
	Disabled	Open