1、What is PoE ? PoE stands for Power over Ethernet. It is also known as Ethernet power supply. PoE Injector allows devices to receive power over the twisted-pair Ethernet cable while simultaneously transmitting data, eliminating the need for additional power cables. This reduces the complexity of wiring, making the entire setup cleaner and more aesthetically pleasing, while also saving on wiring costs.   2、How does PoE work ? The working principle of PoE is as follows: for devices that require simultaneous power and data transmission, current enters the Ethernet cable at the power supply side via a component known as an injector and flows out at the device end. Through Ethernet, power current and data signals are transmitted separately, ensuring...