Alarm.com ADC-VDBA-775-PM
Power Module for Digital Chimes
Description
The Alarm.com ADC-VDBA-775-PM is a power module designed specifically for use with the Alarm.com ADC-VDB775 Video Doorbell when installing with a digital chime. This module is required in many digital chime setups to ensure the doorbell receives consistent power and functions correctly.
Unlike traditional mechanical chimes, digital chimes often do not draw power in the same way. This can cause issues such as the doorbell not powering on, rebooting, or failing to ring the chime when the button is pressed. The ADC-VDBA-775-PM resolves these issues by regulating and stabilizing the power supplied to the doorbell through the chime circuit.
The power module installs inside or near the digital chime unit and works alongside an existing low-voltage doorbell transformer. Once installed, it allows the ADC-VDB775 to maintain a steady power connection while still triggering the digital chime properly. This helps prevent common installation problems and improves overall system reliability.
This module is intended only for use with digital chimes. It is not required for mechanical chimes and should not be installed in those configurations. Before installation, it is important to confirm whether the home uses a digital or mechanical chime. Alarm Grid explains the difference and installation requirements in this guide: How Do I Install the Alarm.com Video Doorbell With a Digital Chime?.
The ADC-VDBA-775-PM is a small but critical accessory for ensuring a successful ADC-VDB775 installation. For customers using a digital chime, this module helps deliver stable performance, reliable chime operation, and long-term system functionality through the Alarm.com platform.
Specifications
- Manufacturer: Alarm.com
- Model: ADC-VDBA-775-PM
- Accessory Type: Power module for digital doorbell chimes
- Compatible Doorbell: Alarm.com ADC-VDB775
- Chime Type: Digital chimes only
- Installation Location: Inside or near digital chime housing
- Function: Regulates and stabilizes power for video doorbell operation
- Power Source: Existing low-voltage doorbell transformer
Brand: Alarm.com