UNE 21870-3:1994
Current
The latest, up-to-date edition.
TELECONTROL EQUIPMENT AND SYSTEMS. PART 3: INTERFACES (ELECTRICAL CHARACTERISTICS).
Hardcopy , PDF
Spanish, Castilian, English
21-10-1994
This series of standards applies to telecontrol equipment and systems with coded bit serial data transmission for monitoring and controlling geographically widespread processes.
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