Aerospace Instrument-Making Annotation << Back International standards and issues of forming, transferring and processing information-control flows in space systems. V.M. Vatutin, Yu.Ye. Lebedev, O.Ye. Khromov, A.N. Vinogradov, V.F. Zadneprovsky, Ye.P. Kurshev, V.M. Khachu-mov The paper reviews international standards for packet telemetry and command protocols (TM/TC), which have become wide-spread in today’s space systems. The use of international standards makes possible reliable collaboration with foreign space agencies: American TDRSS, European DRS, Japanese DBRS and others. Issues involved in developing single TM/TC com-plexes with a unified inner data representation are identified. The complexes have an identical flow structure which is built as recommended by the standards. It is suggested that both equipment operation and system control can be made more efficient by the use of knowledge bases and artificial intelligence.