I connected the nuki Opener with the BPT E/220. Please find attached the wiring for your reference.
The Open Door works. The Ring to Open doesn’t work and I don’t get notification when someone rings. I called the BPT support and told me that the slot 4 (RING) doesn’t give electric current (12V) like other intercoms, it works with audio signal. Is there a way to get the Ring working with the audio signal? Do I need a different set up?