Design of Bus Media Redundancy in CAN

Network media redundancy is a clean and effective way of achieving high levels of reliability against temporary medium faults and availability in the presence of permanent faults. This is specially true of critical control applications such as those supported by the Controller Area Network (CAN). This paper deals with the complexity of implementing bus media redundancy in CAN, discussing how this can be done through a simple scheme that uses inexpensive off-the-shelf components.

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