9 appliances and components for optical, opto-electrical and electrical communication technology and data transmission for telecommunications, computer systems, data networks and bus systems, automation machine assembly, motor vehicles and aircraft; namely, optical, opto-electrical and electrical backplanes, and backplane wiring and connectors; optical and opto-electrical sensorics, namely flow sensors, speed meters and refractometers; integrated optical and fiber-optical components, namely, optical branching elements, optical star couplers, optical directional couplers, optical splices, optical multiplexers, demultiplexers, optical and opto-electrical connectors and components therefor