Bus 2- or 4-way pushbutton for single mounting 84x84x11mm or mounting into the E-Design65 switching system. For connection to FTS14TG pushbutton gateway. Only 0.2 watt standby loss. With rocker and double rocker. Smart Home sensor. The scope of supply comprises a mounting base with snapped-on electronics, a flat frame RF1E, a rocker and a double rocker. The double rocker permits entry of 4 evaluable signals, but the rocker allows only 2 signals. At the rear, a 20cm long red/black bus line is routed externally. Red terminal to BP, black to BN of a pushbutton gateway FTS14TG. Up to 30 bus switches and/or FTS61BTK pushbutton bus couplers can be connected to terminals BP and BN of an FTS14TG pushbutton gateway. The permitted maximum line length is 200m. The RLC device enclosed with the FTS14TG must also be connected to the terminals BP and BN on the bus switch or pushbutton bus coupler furthest away.