Pre-configured package for 20 residential units for the TCS:BUS consisting of: 1x outdoor station PUK 20 buttons 2 columns UP EN, article number: PUK20/2-EN, pre-programmed, 20x indoor station for hands-free 5 buttons WS, article number: ISW3030-0140, 1x Vers. + control unit BVS20 1 line 4TE, article number: BVS20-SG, 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