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Abstract

A power over Ethernet (POE) switch provides integrated power and data transmission tailored for aircraft systems. The POE switch accepts high voltage input from batteries and utilizes DC-DC converters to generate low voltage for switch electronics. This power is combined with Ethernet data signals and delivered over Ethernet cabling to connected devices. To manage substantial heat generation, the switch employs thermally isolated zones with dedicated heatsinks and forced airflow paths for each hot section. Noise isolation techniques including filters and transformers prevent electrical noise from degrading network signals. Independent cooling paths and noise mitigation enable reliable operation despite the challenging thermal and electrical environment. The integrated networking, power distribution, thermal management, and noise isolation reduce cabling needs. The tailored POE switch design provides robust power and data transmission for aviation components without adding significant weight or complexity.

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First Claim