Power supply for Ring pro
they are using plug in AC transformers for alarm systems, the Ring Doorbell
will short out the power every time the doorbell button is pressed which will cause the transformer to blow the internal fuse. Your best option is to buy plug in power supply with Built in surge protection so it won't kill the doorbell or PS when it's shorted out.
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The following page shows a number of different example wiring diagrams specifically for the Ring Video Doorbell Pro https://support.ring.com/hc/en-us/articles/360022454432-Wiring-Diagrams-for-Ring-Video-Doorbell-Pro-Setup
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