Card Type	Serial card
Chip Set	Unidentified
Maximum Onboard Memory	Unidentified
I/O Options	Serial ports (2)
Data Bus	8-bit ISA

CONNECTIONS
Function	Label	Function	Label
Serial port 1	CN1	Serial port 2	CN2

SERIAL PORT 1 ADDRESS SELECTION
Setting	S1/1	S1/3
3E8h	Off	On
3F8h	On	Off
Disabled	Off	Off

SERIAL PORT 2 ADDRESS SELECTION
Setting	S1/2	S1/4
2E8h	Off	On
2F8h	On	Off
Disabled	Off	Off
Technical note: Must install an INS 8250 chip in slot IC4 to enable dual serial port capabilities. Or - 1488 into IC2 and 1489 into to U9.

SERIAL PORT 1 INTERRUPT SELECTION
IRQ	S1/5	S1/6
IRQ3	Off	On
IRQ4	On	Off
Disabled	Off	Off

SERIAL PORT 2 INTERRUPT SELECTION
IRQ	S1/7	S1/8
IRQ3	Off	On
IRQ4	On	Of
Disable	Off	Off