audio ctrl.dev. DRA Door communication

Audio control device - Control device to supply power to the audio components of the Gira door communication bus. - Power supply of the reverse-polarity protected and short-circuit-proof 2-wire bus. - Self-resetting electronic short-circuit and overload recognition of the operating voltage and the bus connection. - Buttons for system and door opener programming. - LED status indicators for operation, overload, system programming, and door opener programming. - Output AC 12 V for power supply of a standard door opener. - Relay output for switching a door opener with its own power supply. - Door opener time progressively adjustable from 1 to 10 s. The audio control device is intended to be installed in the sub-distribution. If this is not possible, use a standard surface-mounted distributor. This component enables door communication systems with up to 70 devices to be set up (e.g. 1 x built-in speaker, 5 x add-on modules for built-in speakers, 68 x surface-mounted home stations).