What is POE power supply?

Answer: POE power supply: POE supplies power to the PD side while transmitting digital network signals on the differential line through CAT.5 and above network cables. There are usually two ways of POE power supply. 1) The first one uses an 8-core network cable, and the idle terminals 4, 5, 6, and 7 are used for power transmission, and the signal and power are transmitted separately; 2) The second uses 4 The core network cable uses the 1 and 6 data terminals to transmit both power and digital signals to achieve superimposed transmission of signals and power.