Can you provide any more information about your board?
You mention parallel and GPIB. Does your board have both? Do you have a GPIB card also?
My best guess for a simple solution is to use a board like the
PCI 6503 24 line digital I/O card. That is assuming that the jumpers can be replaced by TTL signals this would probably be your best bet.
-Amaury
NI Applications Engineer.