Питание через Ethernet (POE)

Power over Ethernet, also known as PoE, is used to describe any of several standards or ad hoc systems that facilitate the transfer of power alongside data via an Ethernet cable. This minimises cable clutter by combining both processes into one cable, usually in the format of an RJ-45 cable, which can then be used to provide power and data to devices such as wireless access points (WAPs) and In...