Importance

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Abstract

A power feed entry circuit, a module with the power feed entry circuit, and a daughter board with the power feed entry circuit include a first circuit coupled to inputs and outputs, wherein the first circuit is configured for power connections, return isolation relays, diode Or-ing, and output status-indication light-emitting diodes (LEDs); a second circuit coupled to the first circuit, the inputs, and the outputs, wherein the second circuit is configured with a hot swappable controller and provides common-mode and differential mode power line filtering; a third circuit coupled to the first circuit, wherein the third circuit is configured for alarm monitoring of the first circuit and the second circuit; and a fourth circuit coupled to the first circuit and the third circuit, wherein the fourth circuit comprises a dual feed high and low active field effect transistor Or-ing circuit.

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First Claim