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Knowledge Base

Alarm.com Video Doorbell (ADC-VDB770)

Data sheets

Installation guides 

  • ADC-VDB770 wiring guideThe ADC-VDB770 wiring guide explains supported wiring setups for one or two doorbell cameras with one chime, two chimes, or no chime, including transformer requirements, Power Module use, resistor requirements, and supported chime types. It also notes that two ADC-VDB770s are only supported on one circuit when using one chime, digital chimes cannot support more than one ADC-VDB770, and standard installations usually require the ADC-VDBA-PM Power Module.
  • Wire the ADC-VDB770 without a chimeThe ADC‑VDB770 can be powered without a chime using either a 15–30 V DC adapter (minimum 8 W) or a 16–30 V AC transformer (10–30 VA), but a 10‑watt, 10‑ohm resistor with 5% tolerance is required and not included

Frequently asked questions

  • How does the Video Doorbell Mounting Wall Plate work?Video Doorbell Mounting Wall Plate (ADC-VDBA-WP) that is installed between the ADC-VDB770 and the wall. Mounting wall screws and anchors (the same type as what is included with the ADC-VDB770) are also included with each unit.
  • How does the Video Doorbell Temperature Collar work?The Video Doorbell Temperature Collar (ADC-VDBA-TC) is a molded polymer that matches the shape of the area between the ADC-VDB770 back plate and the mounting surface (whether a mounting bracket is used or not). The temperature collar is designed to be used in very cold environments (i.e., below -30C) to extend the operational range of the ADC-VDB770.

General information

For a complete list of general video device articles, see General Video Information.

 

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