Support / Correct Wiring for 3 wire Pacific Electronics 3403 apartment intercom system

[jasonanovak]

Hi!

I have a Pacific Electronics 3403 apartment intercom box in my apartment that has three wires going to it:

Based on what I've read it seems like, with external power, the ESPBell-LITE should support this if wired as follows:

Intercom	ESPBell-Lite
C	One Pair of Lock Wires
T	One Pair of Lock Wires
B	Bell 1
B	Bell 2

Is that right?

(I understand from this doc that:

• T and C wires are common to all apartments;
• B is per apartment for the individual apartments lobby panel signal wire)

(And I'm basing some of this off of discussion 7.)

Thanks!

[PricelessToolkit]

Hi, C and T are correct, but I'm not sure about detecting doorbells. I think B should go to Bell1 and C to Bell2, but you need to check if this affects the sound quality, as these are essentially the speaker terminals.