A PoE switch is a network switch that utilizes PoE technology to transmit power and data over the same Ethernet cable to powered devices such as IP cameras, wireless access points, and VoIP phones, simplifying installation and reducing maintenance costs. By eliminating the need for separate power. The following sections provide information about Power over Ethernet (PoE), the supported protocols, and standards and power management. However, some people in the market are still confused about it. The PoE switch wiring diagram typically includes labels for the switch, network devices, and Ethernet cables.