DIN EN 60870-6-503:2003-02
Отменен
Telecontrol equipment and systems - Part 6-503: Telecontrol protocols compatible with ISO standards and ITU-T recommendations; TASE.2 services and protocol (IEC 60870-6-503:2002); German version EN 60870-6-503:2002, text in English
— 141 стр.