SIO-II IO card Settings and Configuration

Card Type	Serial card
Chip Set	Unidentified
Maximum Onboard Memory	Unidentified
I/O Options	Serial port
Hard Drives supported	None
Floppy drives supported	None
Data Bus	8-bit ISA
Card Size	Half-length, full-height

CONNECTIONS
Function	Label
Serial Port 1	CN1

USER CONFIGURABLE SETTINGS
Function		Label	Position
	RS-485 enabled by RTS	E2	Closed
	RS-485 always enabled	E2	Open
	RS-232 with U7 & U11 installed	E5	Pins 2 & 3 closed
»	RS-422/485 with U6 & U7 installed	E5	Pins 2 & 3 closed
	Current Loop with U6 & U7 installed	E5	Pins 1 & 2 closed
Note: For the RS-422, the RS-485, and the Current loop, the RS-422/485 driver/receiver pair are installed at U6 and U7. For the RS-232, U6 and U7 must be removed and the RS-232 driver/receiver pair are installed at locations U17 and U11.

BASE I/O ADDRESS SELECTION PORT 1
Setting		SW1/1	SW1/2	SW1/3	SW1/4	SW1/5	SW1/6	SW1/7	SW1/8
	238h	On	Off	Off	Off	Off	Off	Off	Off
	2B8h	Off	On	Off	Off	Off	Off	Off	Off
	338h	Off	Off	On	Off	Off	Off	Off	Off
	3B8h	Off	Off	Off	On	Off	Off	Off	Off
	278h	Off	Off	Off	Off	On	Off	Off	Off
	2F8h	Off	Off	Off	Off	Off	On	Off	Off
	378h	Off	Off	Off	Off	Off	Off	On	Off
»	3F8h	Off	Off	Off	Off	Off	Off	Off	On
	Disabled	Off	Off	Off	Off	Off	Off	Off	Off

SERIAL PORT 1 INTERRUPT SELECTION
IRQ		E1/Pins 1 & 2	E1/Pins 2 & 3	E9
	IRQ3	Closed	Closed	Open
»	IRQ4	Open	Closed	Open
	IRQ5	Open	Open	Closed
	None	Open	Open	Open