Smart meter monitors electricity consumption through modern metering devices connected to the Internet via IoT technology, which can provide intelligent and fast applications on-site such as arc fault protection based on non-intrusive monitoring load classification with fast safety responses for varying electric loads. Traditional 3, 4, and 5 layers of IoT architecture cannot support such fast responses under loading variation. This paper aims to propose six layers of IoT Cloud-Edge Infrastructure equipped with a Reconfigurable Mixed Signal Controller as a smart meter platform for adaptation to different environments and, for example, deal with fast arc fault detection corresponding to different load characteristics. Such architecture can reduce processing time for safety, reduce bandwidth for communication, improve arc detection accuracy under different loading environments, and lower the overall computation cost.