Compatibility check Golmar T-840C

[HunterX86]

Can someone confirm if this intercom is compatible with the espbell?

How to wire it?

It's a 4+n connection from the Platea series, Series 90 bus technology.

[PricelessToolkit]

Hi, probably yes, the relay needs to be connected to ( - and HZ ) but the doorbell... I am not sure! maybe between ( "+ and SA").

[HunterX86]

Can you please show/tell me which colors of wires go to which connection on my intercom?

[PricelessToolkit]

Wires are labeled on the back side of the PCB, (LOCK wires are doubled!!!! two pairs)

1. Two of the "LOCK" wires to "-" the second pair of "LOCK" wires to "HZ"
2. One of the "BELL" wires to "+" and the second "BELL" wire to "SA" (I'm not sure if you have a multimeter you can check it).
3. For power "GND" to "-" of the power supply, and the "VCC" to the "+" of power supply "5V MAX"