CHASE IOXTRA IO card Settings and Configuration

Card Type	Serial card
Chip Set	Unidentified
I/O Options	Serial ports (2)
Card Size	Half-length, full-height
Data Bus	8-bit ISA

CONNECTIONS
Function	Label	Function	Label
Serial port A	CN1	Serial port B	CN2

USER CONFIGURABLE SETTINGS
Function	Label	Position
Serial port A enabled	J4	Pins 2 & 3 closed
Serial port A disabled	J4	Pins 1 & 2 closed
Serial port B enabled	J5	Pins 2 & 3 closed
Serial port B disabled	J5	Pins 1 & 2 closed

CLOCK SET
Clock	J1/A	J1/B	J1/C	J1/D	J1/E	J1/F
2C0	Closed	Open	Open	Open	Open	Open
2C8	Open	Closed	Open	Open	Open	Open
2D0	Open	Open	Closed	Open	Open	Open
2D8	Open	Open	Open	Closed	Open	Open
3C0	Open	Open	Open	Open	Closed	Open
3C8	Open	Open	Open	Open	Open	Closed

SERIAL PORT A ADDRESS SELECTION
Setting	J7
COM1	Pins 1 & 3, 2 & 4 closed
COM3	Pins 1 & 3, 4 & 6 closed

SERIAL PORT B ADDRESS SELECTION
Setting	J6
COM2	Pins 3 & 5, 2 & 4 closed
COM4	Pins 3 & 5, 4 & 6 closed

SERIAL PORT A INTERRUPT SETTINGS
IRQ	J2/A	J2/B	J2/C	J2/D
3	Closed	Open	Open	Open
4	Open	Closed	Open	Open
5	Open	Open	Closed	Open
9	Open	Open	Open	Closed

SERIAL PORT B INTERRUPT SETTINGS
IRQ	J3/A	J3/B	J3/C	J3/D
3	Closed	Open	Open	Open
4	Open	Closed	Open	Open
5	Open	Open	Closed	Open
9	Open	Open	Open	Closed