Conceptual
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Standby Redundancy and Switchover Reliability

A standby unit that is not powered does not accumulate operating stress, so standby redundancy can beat active redundancy — but only if the detection-and-switch mechanism works, and that mechanism is itself a series element. This node is where learners discover that the switch is usually the weakest block in the diagram.

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A standby unit that is not powered does not accumulate operating stress, so standby redundancy can beat active redundancy — but only if the detection-and-switch mechanism works, and that mechanism is itself a series element. This node is where learners discover that the switch is usually the weakest block in the diagram.

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