Pepperl + Fuchs Gmbh

Fraunhofer-Gesellschaft Zur Foerderung Der Angewandten Forschung E.v.

Jan Ringkamp

Renato Kitchener

Steffen Graber

Jens Langejürgen

Philipp Radler

Philipp Lebhardt

There is provided an interface circuit, a network switch or network device coupler incorporating the interface circuit, and a network incorporating the network switch or network device. The interface circuit has a data bus interface () for connecting a data bus to either a first device () that communicates in a first signalling protocol or a second device () that communicates in a second signalling protocol. The data bus has two bus conductors that provide combined power and data. A voltage source () powers the data bus. The voltage source () is connected to the data bus via a reactance () and then a first resistance () connected in series. An output of a transmitter () is connected via a second resistance () to a point between the reactance () and the first resistance, to modulate the data bus.

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Mannheim, Germany

Jan Ringkamp