Honeywell G.m.b.h.

Arno Kahle

Heinz Daab

Dieter Ehlers

Bernd Scheler

A dialogue system uses a three wire bus connecting a central station with a plurality of substations with two of the wires carrying an AC supply voltage and a third one of the wires carrying data by means of a closed loop of the AC carrying wires and the third wire. The central station uses a series connection of a data transmitter and a data receiver with the third data wire and each substation includes a data receiver in series with the data wire and a data transmitter between the data wire and both AC wires.

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Muehlheim, Germany

Arno Kahle