Abstract: In one embodiment, a distributed redundant control signal distribution system comprises a first control signal source co-located with a first set of control signal controlled circuit elements, at least one second control signal source co-located with a second set of control signal controlled circuit elements, at least one controller for providing control signals from the first control signal source to control both the first and second sets of controlled circuit elements, the controller operable for substituting signals from the second control signal source for signals from the first signal control source if the signals from the first control signal source become unavailable to either the first or second circuit elements.

Abstract: A system comprises plural electronic modules, at least one interconnect structure and plural power supplies. The electronic modules communicate over the interconnect structure. The system further comprises plural redundant manager modules to perform management tasks with respect to the at least one interconnect structure and the power supplies.

Abstract: A system includes a bus isolation component having plural ports and enable inputs to enable respective ports, and bus devices connected to respective ports. Each bus device has logic to provide an enable signal to a respective enable input of the bus isolation component. The port of the bus isolation component connected to a respective bus device is disabled until the logic in the respective bus device activates the enable signal to the respective enable input of the bus isolation component.

Abstract: In one embodiment, a distributed redundant control signal distribution system comprises a first control signal source co-located with a first set of control signal controlled circuit elements, at least one second control signal source co-located with a second set of control signal controlled circuit elements, at least one controller for providing control signals from the first control signal source to control both the first and second sets of controlled circuit elements, the controller operable for substituting signals from the second control signal source for signals from the first signal control source if the signals from the first control signal source become unavailable to either the first or second circuit elements.