A device is disclosed that includes an interface and an integrated circuit. The interface is communicatively coupled to a network connection to provide power and data to a power over Ethernet (PoE) powered device via the network connection. The integrated circuit is coupled to the interface. The integrated circuit includes a power over Ethernet (PoE) controller, a detection and classification circuit, and a voltage protection circuit. The detection and classification circuit is coupled to the interface to detect and classify a power level of the PoE powered device. The voltage protection circuit is coupled to the interface to detect a power event and to provide an alert to the PoE controller in response to the detected power event.