Alarm.com VDB750 Mechanical Chime Dongle (ADC-VDBA-750-MCD)

Alarm.com VDB750 Mechanical Chime Dongle (ADC-VDBA-750-MCD)

Possible results of the test

• The doorbell circuit is in good condition and is expected to be able to power the device. No action is required.
• The doorbell circuit is not supplying the expected voltage. If wired to a MECHANICAL CHIME, this could result in undesired chime behavior such as rattling/humming after a button press. The Mechanical Chime Dongle (ADC-VDBA-750-MCD) should be installed. If the Mechanical Chime Dongle is not available, a resistor (included in the box) can be used instead. If the Mechanical Chime Dongle or resistor was already installed before running this test, no action is required. If the device is wired to a DIGITAL CHIME or there is NO WIRED CHIME, no action is required.
• The doorbell circuit is not supplying the expected power to the device, which could result in performance issues such as power loss after the button is pressed. If the device is wired to a MECHANICAL CHIME, the Mechanical Chime Dongle (ADC-VDBA-750-MCD) should be installed to improve the delivered power to an acceptable level (if the Mechanical Chime Dongle was already installed before running this test or is not available, then the power source should be replaced). If the device is wired to a DIGITAL CHIME or there is NO WIRED CHIME, the power source should be replaced.
• The doorbell circuit is not supplying sufficient power to the device. The power source should be replaced.
• A DC power source was detected. This test can only be used for AC power sources.