Remote Terminal Unit

A remote terminal unit (RTU) is a computer with radio interfacing used in remote situations where communications via wire is unavailable. It is usually used to communicate with remote field equipment. PLCs with radio communication capabilities are also used in place of RTUs.

Source checked2/2 values · 2026-10-25System

Specification

1 source

Kind	system
Origin	NIST SP 800-82r3 (from NISTIR 6859)

Study notes

Definition source: NIST SP 800-82r3, from NISTIR 6859.
PLCs with radio communication capabilities can substitute for RTUs.