BS 7404-3:1991

This standard BS 7404-3:1991 Telecontrol equipment and systems is classified in these ICS categories:

• 33.200 Telecontrol. Telemetering

This series of standards applies to telecontrol equipment and systems with coded bit serial data transmission for monitoring and controlling geographically widespread processes.

Defines electrical interface characteristics, e.g. signals, impedances, etc. which have to be met at the shared boundaries.