Overview
phone adapter door
accesories system phone
There are two types of door phone adaptors available for the DBS. The first type (VB-43701) utilizes a trunk connection to connect to the door box and is described below. The second type (VB-43711) utilizes a digital port extension to connect to the door box and door opener. See“Door Box Adaptor (Extension Port)†on page 5-31 for more information.
Each Door Box Adaptor (VB-43701) can be used to connect one door sensor and up to two Door Boxes (VA-43705) equipped with door openers.