American national standard ANSI/TIA/EIA-422-B (formerly RS-422) and its international equivalent
ITU-T Recommendation
V.11 (also known as X.27), are technical
standards that specify the "electrical characteristics of the balanced voltage digital interface circuit". It provides for data transmission, using
balanced or differential signaling, with unidirectional/non-reversible,
terminated or non-terminated transmission lines, point to point, or
multi-drop. In contrast to
RS-485 (which is multi-point instead of multi-drop) EIA-422/V.11 does not allow multiple drivers but only multiple receivers.
See more at Wikipedia.org...
Free Download Now!
