MOST Structure: Notes

The MOST bus is configured in a "ring" structure. Data transmission on the ring takes place in one direction only. Messages can be transmitted provided the bus ring is complete and fully functional.

A failure, such as an interruption in the ring, will cause a complete failure of the MOST ring. All modules on the MOST bus will cease to function when there is an open in the MOST bus.

Fig 1: Graphic Example Of "Ring Structure" Used On Most Bus

Courtesy of BMW OF NORTH AMERICA, INC.

Fig 2: Example Of MOST Bus On E65

Courtesy of BMW OF NORTH AMERICA, INC.