Hi All--
I'm new to the forum and to Shelly. I just ordered a Uni and will have it in a couple of days. My intercom system is an Alpha IS407C (photo, wiring diagram and specs attached).
- It's 16V,
- 4-wire (1, 2, 3, X)
- with Talk, Listen and Door buttons,
- the latter of which releases the magnetic lock in my lobby (a buzzer).
- The doorbell signal travels over the X wire with 1 as ground and the door release button connects wires 2 & 3.
I'm much more of a software and household DIY guy ... Electronics circuitry is a bit intimidating to me. If anyone would be so kind as to offer some advice as to how I might go about wiring the Uni into my system and advise what type of power supply I should purchase I will be forever grateful! Thanks so much.