The RS-422 standard defines the following technical specifications:
RS-422 remains a cornerstone of industrial and professional serial communication. Its provides exceptional noise immunity and long reach, while its simple one‑driver, many‑receivers topology makes it the go‑to choice for broadcasting data across factories, labs, and camera networks. For bidirectional multi‑drop systems, RS‑485 (derived directly from RS‑422) offers extended capability, but where one‑way or master‑to‑multiple‑slave links are needed, RS‑422 is often the simplest, most reliable solution. rs-422 standard
This makes RS‑422 ideal for: