HIGH SPEED DUAL ASYNCHRONOUS SERIAL BOARD IO card Settings and Configuration

Card Type	Serial card
Chipset Controller	165550AN UART
I/O Options	Serial port (2)
Maximum DRAM	N/A

CONNECTIONS
Purpose	Location	Purpose	Location
9-pin serial port	CN1	9-pin serial port	CN2

SERIAL PORT CHANNEL A CONFIGURATION
Setting		J1	J2	J3	J4
»	COM1: (3F8h)	Pins 1 & 2 closed	Open	Open	Open
	COM2: (3E8h)	Open	Pins 1 & 2 closed	Open	Open
	COM3: (2F8h)	Open	Open	Pins 1 & 2 closed	Open
	COM4: (2E8h)	Open	Open	Open	Pins 1 & 2 closed

SERIAL PORT CHANNEL B CONFIGURATION
Setting		J1	J2	J3	J4
»	COM2: (3E8h)	Open	Pins 2 & 3 closed	Open	Open
	COM1: (3F8h)	Pins 2 & 3 closed	Open	Open	Open
	COM3: (2F8h)	Open	Open	Pins 2 & 3 closed	Open
	COM4: (2E8h)	Open	Open	Open	Pins 2 & 3 closed

CHANNEL A INTERRUPT SELECTION
IRQ		J5/A	J5/B	J5/C	J5/D	J5/E
»	4	Open	Open	Closed	Open	Open
	2	Closed	Open	Open	Open	Open
	3	Open	Closed	Open	Open	Open
	5	Open	Open	Open	Closed	Open
	7	Open	Open	Open	Open	Closed

CHANNEL B INTERRUPT SELECTION
IRQ		J6/A	J6/B	J6/C	J6/D	J6/E
»	3	Open	Closed	Open	Open	Open
	2	Closed	Open	Open	Open	Open
	4	Open	Open	Closed	Open	Open
	5	Open	Open	Open	Closed	Open
	7	Open	Open	Open	Open	Closed