Card Type	Serial card
Chip Set	Unidentified
Data Bus	16-bit ISA

CONNECTIONS
Function	Label	Function	Label
9-pin serial port 1	J1	9-pin serial port 2	J2

USER CONFIGURABLE SETTINGS
Function	Label	Position
IRQ share select normal	JP4	Pins 1 & 3, 2 & 4 closed
IRQ share select sharing	JP4	Pins 3 & 5, 4 & 6 closed

SERIAL PORT SELECTION (RS-232 & RS-422)
Setting	JP1C	JP2C
RS-232	1 & 2, 4 & 5, 7 & 8, 10 & 11	1 & 2, 4 & 5, 7 & 8, 10 & 11
RS-422/485	2 & 3, 5 & 6, 8 & 9, 11 & 12	2 & 3, 5 & 6, 8 & 9, 11 & 12
Note: Pins designated should be in the closed position.

SERIAL PORT SELECTION (RS-422 & RS-485)
Setting	JP1A	JP1B	JP2A	JP2B
RS-422	Pins 1 & 2 closed	Pins 1 & 2 closed	Pins 1 & 2 closed	Pins 1 & 2 closed
RS-485	Pins 2 & 3 closed	Pins 2 & 3 closed	Pins 2 & 3 closed	Pins 2 & 3 closed

RS-485 SELECTION
Setting	JP5	JP6
Send Data (SD)	Pins 1 & 2 closed	Pins 1 & 2 closed
Request to Send (RTS)	Pins 2 & 3 closed	Pins 2 & 3 closed

MISCELLANEOUS TECHNICAL NOTE

JP1C, JP1A, JP1B & JP5 control serial port 1 and JP2C, JP2A, JP2B & JP6 control serial port 2.

SERIAL PORT 1 ADDRESS SELECTION
Address	SW1/1	SW1/2	SW1/3	SW1/4	SW1/5	SW1/6	SW1/7
3F8	Off	Off	Off	Off	Off	Off	Off
2F8	Off	Off	Off	Off	Off	On	Off
3E8	Off	On	Off	Off	Off	Off	Off
2E8	Off	On	Off	Off	Off	On	Off

SERIAL PORT 2 ADDRESS SELECTION
Address	SW2/1	SW2/2	SW2/3	SW2/4	SW2/5	SW2/6	SW2/7
3F8	Off	Off	Off	Off	Off	Off	Off
2F8	Off	Off	Off	Off	Off	On	Off
3E8	Off	On	Off	Off	Off	Off	Off
2E8	Off	On	Off	Off	Off	On	Off

INTERRUPT SELECTION
IRQ	Port 1 (J1)	Port 2 (J2)
IRQ2	JP3/pins 31 & 32 closed	JP3/pins 32 & 33 closed
IRQ3	JP3/pins 28 & 29 closed	JP3/pins 29 & 30 closed
IRQ4	JP3/pins 25 & 26 closed	JP3/pins 26 & 27 closed
IRQ5	JP3/pins 22 & 23 closed	JP3/pins 23 & 24 closed
IRQ6	JP3/pins 19 & 20 closed	JP3/pins 20 & 21 closed
IRQ7	JP3/pins 16 & 17 closed	JP3/pins 17 & 18 closed
IRQ10	JP3/pins 13 & 14 closed	JP3/pins 14 & 15 closed
IRQ11	JP3/pins 10 & 11 closed	JP3/pins 11 & 12 closed
IRQ12	JP3/pins 7 & 8 closed	JP3/pins 8 & 9 closed
IRQ14	JP3/pins 4 & 5 closed	JP3/pins 5 & 6 closed
IRQ15	JP3/pins 1 & 2 closed	JP3/pins 2 & 3 closed

DATA RATE SELECTION
Setting	JP7	JP8
High	Pins 1 & 2 closed	Pins 1 & 2 closed
Low	Pins 2 & 3 closed	Pins 2 & 3 closed