Pre-configured package for 3 residential units for the TCS:BUS consisting of: 1x outdoor station VPAK Color V2D 2-button AP EN, article number: AVC12020-0010, pre-programmed, 3x video 2-wire:BUS door phone 2-button AP, article number: IVH4222-0140, 1x video 2-wire:BUS supply unit, article number: NVV1000-0400, The package is pre-configured at the factory and can be expanded to a limited extent, The functions of the indoor and outdoor stations can be changed to a limited extent with TCS service products, The components support stand-alone operation