Audio control unit door communication system REG control unit for supplying the audio components of the Gira door communication bus. The audio control unit has the following product features: Supply of the reverse polarity and short-circuit-proof 2-wire bus. Self-resetting electronic short-circuit and overload detection of the operating voltages and the bus connection. Buttons for system and door opener programming. LED status displays for operation, overload, system programming and door opener programming. 12 V AC output (1 10 s) for supplying power to a commercially available door opener (current consumption max. 1.6 A ED 25%). Permanent 12 V AC output for supplying power to a TKS TK Gateway 129000. Relay output for switching a door opener with its own power supply. Door opener switching time continuously adjustable from 1 s to 10 s. The audio control unit is intended for installation in the sub-distribution board. If this is not possible, use a commercially available surface-mounted distributor. With this component, it is possible to set up door communication systems with up to 70 participants (e.g. 1 built-in loudspeaker, 5 extension modules for built-in loudspeakers, 68 AP home stations).
