Data bus for communication between several substations e.g. in a vehicle

摘要

The data bus is used between a number of substations connected via a star coupler receiving electrical input signals and provided with a logic decision element, coupled at its inputs to the substation outputs and providing an output delivered in parallel to the substation inputs. At least some of the substations are linked to the star coupler via an optical transmission path with optoelectronic transducers at its ends. A signal propagation circuit between the logic decision element and the substations inputs matches the pulse form of the output signal to that of the input signals.