In FIG. 1 a prior art heated floor panel system 1′ for an aircraft is illustrated. The floor panel system 1′ comprises a floor panel element 3′, a temperature sensor device 5′, and a connector device 7′, and a control unit 9′. The floor panel element 3′ comprises a panel structure 11′ and a panel heater device 13′. The temperature sensor device 5′ is provided inside the floor panel element 3′ and connected to the connector device 7′ by internal sensor wiring 15′. The panel heater device 13′ is provided inside or in connection to the panel structure 11′ and is connected to the connector device 7′ by internal heater wiring 17′. The connector device 7′ comprises a connector case 19′ which is fixedly connected to the floor panel element 3′ at its outside 20′, and a power and data cable arrangement 21′ connected to the connector case 19′ at its one end and to the control unit 9′ at its other end.

In contrast, FIG. 2 illustrates a heated floor panel system 1 for an aircraft according to the disclosure herein. The floor panel system 1 shown in FIG. 2 represents a more general embodiment that covers both alternative embodiments shown in FIG. 3 and FIG. 4.