Applicable to analogue direct current signals used in industrial-process measurement and control systems to transmit information between elements of systems. Does not apply to signals used entirely within an element.
ICS
35.240.50 IT applications in industry. Including design automation / Применение информационных технологий в промышленности. Включая автоматизацию проектирования
33.200 Telecontrol. Including Supervising, Control and Data Acquisition System (SCADA) / Телемеханика. Телеметрия. Включая систему диспетчерского управления и сбора данных (SCADA)
