If you don't have an existing doorbell, it's possible to connect a Ring Doorbell 2 directly to a low voltage 8-24V AC transformer (40V maximum) at 50/60Hz.
Note: Some important facts for people planning on using this optional alternate configuration for their Ring Video Doorbell 2.
- The Ring Video Doorbell 2 can only be connected to an AC transformer. DC is not supported.
- Connecting the Ring Video Doorbell 2 to an AC transformer requires some knowledge of wiring and soldering. If you are uncomfortable reading wiring diagrams, hooking up wires or soldering them in place, consult a licensed electrician for assistance or use the built-in rechargeable battery to power your Video Doorbell.
- Wires should be soldered onto the resistor and a wire clip can be used on the other end.
- In addition to the equipment included in your Ring Video Doorbell box, You will need to purchase an electronic resistor. A resistor is REQUIRED in place of a mechanical or electronic doorbell kit for this alternate configuration to work successfully.
- Do not use halogen or garden-lighting transformer.
- Do NOT install a diode.
If you are looking to purchase a resistor, here is one we have tested and recommend: