IEC TR 61850-1 First edition 2003-04. Communication networks and systems in substations

International Electrotechnical Commission, 3, rue de Varembé, PO Box 131, CH-1211 Geneva 20, Switzerland-44 p. Part 1:Introduction and overview. This technical report is applicable to substation automation systems (SAS). It defines the
communication between intelligent electronic devices (IEDs) in the substation and the related
system requirements. This part gives an introduction and overview of the IEC 61850 standard series. It refers to and
includes text and Figures from other parts of the IEC 61850 standard series.