FAULT TOLERANT VIRTUAL VMEbus BACKPLANE DESIGN

摘要

This invention provides fault tolerant capability for a Versa Module Eurocards backplane system design for high reliability applications. An approach of connecting two independent backplanes (10, 14) together electrically, but providing isolation capabilities in the event a failure was developed. The electrical connection or integrated bridge design provides a virtual connection between the two VME backplanes (10, 14) that is transparent to the end user. The integrated virtual VMEbus design provides a low latency, high bandwidth interconnect between modules (12, 16) whether located on the same local bus (10, 14) or the electrically isolatable bus (18). This dual-VME fault tolerant backplane design eliminates complete system failures due to single event failures.