I'm replacing the doorbell in the house I just moved into. Currently, there is some Aiphone setup (never heard of this). What I do know is that the current doorbell camera has two wires (A1 and A2) that connect to the base unit. The base unit is powered by an adapter that is plugged into the wall.
My goal is to replace this with a Nest doorbell and a chime. I'm not clear on what I need and a bit confused.
I think I can get a plug in transformer to power a chime that I can buy (essentially replacing the current power adapter), but not sure where the A1 and A2 wires from the front door are supposed to go. I figure that A1 is the power.
Any simple diagram or explanation would help immensely. Thank you.