Wire the ADC-VDB770 without a chime The ADC-VDB770 can be powered without a chime using either a DC adapter with a power rating of 15-30V DC,...
Wire the ADC-VDB750 without a chime The ADC-VDB750 can be wired without a chime using an AC transformer with a power rating of 16-24VAC, 10-40VA, or...
