There is isolated RS-422 interface between system-A and system-B. System-A have ADM2682E.
So do I need to send GND2 to system-B from system-A? Please refer the attached PDF for details.
Thanks and Regards
Adding a common GND2 wire to your system is application specific.Do you expect to see large amounts of noise in your system between the ADM2682E nodes?
We do recommend the common RS-485 reference (GND2 wire) for enhanced noise immunity and proper RS-485 signalling. If all the nodes are isolated, it is still good to have all GND2s (bus side isolated ground) connected together via a reference wire. The isolation means you don’t need to worry about ground loops when you do this.
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