Hello
I’m replacing my old intercom handset with a new Urmet 1150/1 handset.
I’ve seen that some here have done this same installation but in those cases it looks like they have 5 wires coming from the front door intercom into the apartment where the handset is installed. On my case I only have two wires coming from the front door. One is red and one is white.
Those two wires apparently have to handle:
CALL
AUDIO IN
AUDIO OUT
DOOR UNLOCK
The terminals available in the Urmet handset are:
1 CA 2 6 10 9
Would anyone know which terminals the red and white wires coming from the front door connect to?