2-wire analog system compatibility

[darko.me (Darko Mijić)]

@Pawel_O, have you managed to make “ring to open” work?

Has anyone managed to make “ring to open” work with a 2-wire, 1+N system?

I tried the wiring scheme from this post and also from this post:

Got URMET 1150/351 - 1150/35 - 1133/013 to work!

Hello, I have Urmet 1133 (noting after this number). The PCB is labeled CS1133-002B. https://imgur.com/a/apqKGxc I have used the same setup and tried with 1144/20 configuration, and I have two issues: When I pick up the phone, I hear a constant high-pitched sound. This was not happening before the Nuki Opener installation. Opening the door works when I initiate it through the app. But the ring to open does not work and ringing the door is not recognized at any time. Same issue as @in…

I have Urmet 1133. The PCB is labeled CS1133-002B.