Switches will be able to provide better power management and distribution function, the typical switch from 70 to 100 watts, with the deployment of PoE, the heat load of telecommunications equipment from centralized telephone or electrical cabinet cabinet shifted to LAN distribution layer, the company must consider VoIP and PoE technology migration may install LAN switches of each radiator cooling in the corner of the cabinet and other requirements, if a large number of PoE switches to replace older LAN device, not only the cooling cooling is an issue, but also have to consider to increase power supply wiring closet,
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