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Logitech ringtone with relay and NuTone

Logitech ringtone with relay and NuTone

Logitech ringtone with relay and NuTone

I have a bell at the Westminster door. It has one thread at “1”, two threads at “2” and one thread at “F”. I researched and it looks like I need to install a relay along with the bell box. Did anyone do this to explain to me the wiring that needs to be done? Here is a picture of it:

[NuTone](https://imgur.com/a/mo0qx04)