SDLC ADAPTER (ORIGINAL) IO card Settings and Configuration

Card Type	Serial card
Chip Set	Unidentified
Data Bus	8-bit ISA

CONNECTIONS
Function	Label
25-pin serial port	CN1

DMA CHANNEL SELECTION
Channel	JP2	JP4
1	Pins 1 & 2 closed	Pins 1 & 2 closed
2	Pins 3 & 4 closed	Pins 3 & 4 closed
3	Pins 5 & 6 closed	Pins 5 & 6 closed
None	Open	Open

BASE I/O ADDRESS SELECTION
Setting		SW1/1	SW1/2	SW1/3	SW1/4	SW1/5
	0h	On	On	On	On	On
	20h	On	On	On	On	Off
	40h	On	On	On	Off	On
	60h	On	On	On	Off	Off
	80h	On	On	Off	On	On
»	300h	Off	Off	On	On	On
	360h	Off	Off	On	Off	Off
	380h	Off	Off	Off	On	On
	3A0h	Off	Off	Off	On	Off
	3C0h	Off	Off	Off	Off	On
	3E0h	Off	Off	Off	Off	Off
Note: A total of 32 base address settings are available. The switches are a binary representation of the decimal memory addresses. SW1/10 is the Most Significant Bit and switch SW1/5 is the Least Significant Bit. The switches have the following decimal values: SW1/5=512, SW1/4=256, SW1/3=128, SW1/2=64, SW1/1=326. Turn off the switches and add the values of the switches to 512 and convert to hexadecimal to obtain the correct memory address. (Off=1, On=0)

SERIAL PORT INTERRUPT SELECTION
IRQ	JP3
IRQ2	Pins 1 & 2 closed
IRQ3	Pins 3 & 4 closed
IRQ4	Pins 5 & 6 closed
IRQ5	Pins 7 & 8 closed