The SAA232 needs to be wired into the serial port of the FLP200:
FLP200 serial ports require custom cables with an RJ45 connector. This could be made from a standard ethernet cable and modifying one end for connection to SAA232. The ethernet standard using for the SAA Connection is in the below wiring diagram:
With an ethernet cable of this wiring, cut off one end and wire it to SAA232 like this:
After connecting the SAA232 to FLP200, there will be another step for GeoExplorer configuration (this example uses Serial Port 1 of FLP200):