A Brief Overview of WIZnet PoE

Project description

Hello : ) I've prepared this message to briefly explain PoE (Power over Ethernet) technology and to provide guidance on precautions to take when using WIZnet PoE modules. Of course, you might already be well aware, but I would appreciate it if you could read it with the mindset of double-checking. In PoE, the PD (Powered Device) involves DC input and DC output. Power can be delivered in two ways for the input. They are Mode A and Mode B. Mode A transfers power to two pairs of data lines. Mode B transmits power to an extra pair of lines. Regardless of whether Mode A or Mode B is used, a…