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IEC/TS 62443-1-1 Ed. 1.0 en:2009
"Industrial communication networks - Network and system security - Part 1-1: Terminology, concepts and models"
"IEC/TS 62443-1-1:2009(E) is a technical specification which defines the terminology, concepts and models for Industrial Automation and Control Systems (IACS) security. It establishes the basis for the remaining standards in the IEC 62443 series."
International Electrotechnical Commission [iec]