Digi one SP

I have a client using digi one SP hardware connected to a OPTO isolator connected to their receiver hardware. Does anyone know if this is compatible? At the moment I am not getting any data, so do you know how the digi needs to be configured???

If the OPTO isolator is a serial device I don’t see any reason it wouldn’t work. As far as not getting data, this might come down to either configuration of the Digi One SP (what port profile do you have set and how will you talk to the OPTO isolator?) or cabling (what type of serial interface does the OPTO isolator have and is it DCE or DTE in nature?). As long as its serial this should work.