Organizations gain the convenience and cost-savings of reduced power cabling when they take advantage of Power over Ethernet (PoE). This centralized, reliable source of power enables network devices such as IP phones, wireless access points, and network jacks to operate without additional power adapters, cords, or AC outlets. Using PoE-compliant devices, they can take advantage of low-voltage power distributed across a network on existing Ethernet data cabling. Though PoE isn't a new concept, until recently it lacked a standard implementation scheme. To meet the increasing number of deployments of Voice over IP (VoIP) and Wireless Local Area Networks (WLANs), a number of different, and often incompatible, inline power solutions were brought to market by technology vendors.
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