Nuki Opener + Ritto 17230/.0


Having found other threads but no solution.
I’ve got the Ritto 17230/.0 with three door bells:

  • Outside gate bell (incl. buzzer ==> that’s the one I want to operate with the Opener)
  • Inside gate bell (incl. buzzer, can be ignored)
  • Apartment (no buzzer)

I can only activate the respective buzzer after the bell has been pressed.

I’ve tried to switch a/b but no success.

Any ideas about the correct wiring?