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SCALANCEX201-3P IRT,SCALANCEX202-2P IRT和SCALANCEX200-4P IRT(Isochronous RealTime)是第一批集成了ERTEC(Enhanced RealTime Controller)和SCRJPOF/PCFFOC(Polymer Optical Fiber,Polymer Cladded Fiber)接口的SCALANCE产品的SIMATIC NET Industrial Ethernet实时交换机,这些接口是PROFINET标准。通过电气R