Notes: If software configuration is selected by closing JP21/pins 3 & 4, open jumpers JP13 and JP2.
JP21/pins 1 & 2 function to toggle I/O address selection. If an I/O address collision is detected during installation, the shunt on JP21/pins 1 & 2 can be removed (while the PC is running) to force the software to try the next larger I/O address. For example, if a collision is detected using I/O address 300h, removing shunt on JP21/pins 1 & 2 will force the software to try I/O address 320h.