Network equipment including multiple Ethernet ports configured to combine the power supplies from the multiple Ethernet ports

摘要

A network equipment for a powered device of a PoE system is adapted to be connected to multiple network lines, each transmitting a network signal, and a DC power that is carried on the network signal, and that has a magnitude smaller than a power necessary for driving power-consuming components of the powered device. The network equipment includes: multiple Ethernet network ports, each coupled to a respective network line; a transformer module coupled to the Ethernet network ports, and configured to separate the DC powers from the network signals; a power module coupled to the transformer module for combining the DC powers into a supplying power; and a signal processing circuit coupled to the power module for receiving at least a portion of the supplying power, and coupled to the transformer module for processing the network signals. The supplying power has a magnitude sufficient for driving the power-consuming components.