Greenhouses, livestock sheds and grain sites where humidity, dust and distance decide the enclosure, the cabling and the uplink.

Each greenhouse had its own climate computer with a serial link and a camera on a separate recorder. One PoE switch per house now carries the climate gateway, the sensors and the crop camera, and a collector joins the six houses over fibre to the office.
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Dust and ammonia in the sheds were killing office-grade switches inside a year. Each shed now has one industrial PoE switch in a sealed cabinet, carrying the feed and climate controllers, the camera and the alarm link.
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Temperature probes in twelve silos were polled by hand, and the weighbridge shared a switch with the office. A fibre fan-out and 2.5G aggregation now read every silo on a schedule, with the weighbridge on its own segment.
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