Alarm.com ADC-VDBA-PSU-DC Doorbell Power Supply
 
The ADC-VDBA-PSU-DC is a plug-in DC power supply designed to power compatible Alarm.com video doorbells when an existing doorbell chime circuit is not available or is incompatible. It provides a dedicated power source for installation scenarios without traditional wiring.
 
Key Features
Plug-in DC power supply
Designed for Alarm.com video doorbells
Used when no existing chime wiring is available
Supports installations with incompatible wiring setups
 
Specifications
Output: 16V DC
Current: 1.25A
Power: 20W
 
Compatibility
Compatible with Alarm.com video doorbells including:
ADC-VDB770
ADC-VDB750
Important Notes
Intended for use without a wired chime in the circuit
Requires additional wiring for installation
May require a resistor depending on installation configuration