Patent ID: 7420297

Claim:
A system for isolating at least one load from multiple power sources, the system comprising: a first power isolation system capable of receiving a first power from a first input port and determining whether the first power is communicated to a first output port, the first power isolation system being a first electrical power isolation system; a second power isolation system capable of receiving a second power from a second input port and determining whether the second power is communicated to a second output port, the second power isolation system being a second electrical power isolation system; and an intermediate module connected with the first and second power isolation systems, wherein the intermediate module allows for at least one intermediate control signal to be provided to the first and second power isolation systems, wherein the intermediate module receives a respective additional signal from each of the first and second power isolation systems, the respective additional signals being indicative of whether the respective power isolation systems have respectively attained an isolated state; and wherein the intermediate module generates an output signal that is based upon each of the respective additional signals from the first and second power isolation systems, and that is indicative of whether both of the first and second power isolation systems have attained the isolated state.