Comelit Okay door intercom wiring

Myna

Hi

I bought an apartment that came with an OLD Comelit Okay intercom.
I want to change it but no idea which wires are doing what.
Anyone here knows the reference of this old intercom and knows which wires do what?

I am attaching 2 pictures of the intercom.

Thanks in advance.

molerat

Wiring diagrams are pretty easy to find, just Google Comelit Okay wiring diagram.  You need to get the whole thing off the wall to see if there is any other idents, it looks a bit of an antique so unlikely anyone will come up with a model.

https://doorentrydirect.com/comelit-wiring-diagrams

https://manuals.easygates.co.uk/category/products/intercoms/

Comelit themselves is behind a log in but looks open to anyone to register https://pro.comelitgroup.com/en-gb/downloads/door-entry-systems-kits-1/wiring-diagrams-3