该设备包括接口和集成电路，接口通过网络连接为电力过网设备提供电源和数据。集成电路内含电力过网控制器、检测和分类电路以及电压保护电路。检测和分类电路用于识别电力过网设备的功率等级，而电压保护电路则能在检测到电源事件时向电力过网控制器发出警报。
摘要：
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.
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