CAN bus, which has been used in the automotive industry for more than 10 years, is now also found in I&C systems for rail vehicles. There are two basic systems.

Firstly, the vehicle bus connecting the individual technology modules such as air-conditioning control, lighting control and the anti-spin and skid computer.
Secondly, the train bus connecting the individual vehicles - locomotive and carriages, for example.
CAN Powerline can be used as a low-cost alternative to the MVB for the train bus. Higher voltage levels ensures reliable connections between individual vehicles. A train bus coupler performs the automatic train setup, so additional settings are unnecessary when assembling the train.
Using this system, it is easy to make redundant systems that also guarantee operational reliability even if there is a fault. m

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Selectron Systems AG is based in Lyss, Switzerland. www.selectron.ch