| 摘要 |
A protected mid-span power sourcing equipment for a local network communication system includes a network connection subsystem that is connectable to a first network cable having a plurality of electrical wires, and a power equipment connection subsystem that is connectable to at least a second network cable also having a plurality of electrical wires. The second network cable is communicable with a powered end station of the LAN communication system and provides power signals and voice and data signals to the powered end stationed. A power source is connected to the second network cable in the powered equipment connection subsystem and generates the power signal that is provided on at least one second network cable to the powered end station. Electrical surge protectors in the mid-span power sourcing equipment are connected to the powered equipment connection subsystem and the second network cable and provide electrical surge protection for the powered end station. |
