# Highway Addressable Remote Transducer Protocol

> hybrid analog+digital industrial automation protocol; can communicate over legacy 4–20 mA analog instrumentation current loops, sharing the pair of wires used by the analog only host systems

**Wikidata**: [Q645044](https://www.wikidata.org/wiki/Q645044)  
**Wikipedia**: [English](https://en.wikipedia.org/wiki/Highway_Addressable_Remote_Transducer_Protocol)  
**Source**: https://4ort.xyz/entity/highway-addressable-remote-transducer-protocol


## References

1. [Source](https://github.com/JohnMarkOckerbloom/ftl/blob/master/data/wikimap)
2. Freebase Data Dumps. 2013
3. National Library of Israel Names and Subjects Authority File