Tonna Electronique SA engages in the design, manufacture and marketing of equipment for receiving and distributing conventional, satellite and cable television. Its products are divided into access control and security equipment, television equipment and cable network equipment. Access control and security equipment include audio and video carriers, encoders, electric locks, pushbuttons, remote center management systems, cameras, monitors and domes. Television equipment comprises of antennas, modulators, switches, converters, receivers, optical transmitters and input jacks. Cable network equipment includes main stations, amplifiers, distributors, splitters, feeders, modems and network heads. The company was founded by Marcel Cocset and Marc Tonna in 1949 and is headquartered Reims, France.