Method and apparatus for protection switching

摘要

An apparatus comprises a protection group. The protection group includes components, a signal bus, including segments and connectors, that couple the components. The components also include a plurality of working components, and a protection component. Each connector is included in a working component. Each segment couples two adjacent components. The signal bus is terminated by the protection component. A method comprises generating a first signal from a plurality of working components. The first signal is analyzed by a protection component to determine if any working component is improperly functioning. The protection component transmits a second signal to the plurality of the working components to turn off an improperly functioning working component. Data signals are routed by coupling the improperly functioning working component through a signal bus to the protection component. The data signals are processed by the protection component.