A doorbell circuit for two or more doors will have a separate contact on the chimes for each door button included.
How to hook up a doorbell with 3 floors.
Connect the two doorbell wires to the two screw terminals.
Although it s easy to connect a new doorbell cable common is 18 or 20 gauge cl2 type or the equivalent at the existing doorbell chime it may be difficult to run concealed wires to a basement shop or other remote location.
How to hook up a doorbell.
30va doorbell transformer http amzn to 2woz5sv to hook up a second doorbell in the basement backyard or garage you will need to make sure the transformer.
This has a cat 5 running to it i am assuming from the door bell when i hook the new wires up to the transformer then to the new bell it just hums and dings once.
Connect the three household power wires to the matching colored wires on the transformer using wire nuts.
Some important facts for people planning on using this optional alternate configuration for their ring video doorbell 3.
If you don t have an existing doorbell it s possible to connect a ring doorbell 3 directly to a low voltage 8 24v ac transformer designed for doorbell circuits.
Take the top wire and bend the end of it so you can tell them apart.
Connected the other output wire on the transformer to a contact on the chimes.
The doorbell has 2 wires connected to it 1 at the top and 1 at the bottom and it s important that you remember which one is which so you can hook up the new one properly.
My transformer is in the garage with clear access to it.
Use a transformer with at least 16 volts ac and 30 volt amps or the transformer that came with your doorbell kit.
Secure the connection with electrical tape.
Connect one wire from each button to one of the chime contacts.