System Omega and differential Omega receivers for ships; operational and performance requirements; methods of testing and required test results (IEC 61110:1992); German version EN 61110:1992— 9 стр.
Maritime navigation and radiocommunication equipment and systems - Digital interfaces - Part 2: Single talker and multiple listeners, high-speed transmission (IEC 61162-2:1998); German version EN 61162-2:1998— 22 стр.
Maritime navigation and radiocommunication equipment and systems - Integrated Bridge Systems (IBS) - Operational and performance requirements, methods of testing and required test results (IEC 61209:1999); German version EN 61209:1999— 44 стр.