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Thread: What is RS-422?
September 6th, 2011, 04:13 PM #1Kum Guest
What is RS-422?
Can anyone give me idea about RS-422?
September 6th, 2011, 04:23 PM #2SJAY Guest
RS-422 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 EIA-485 (which is multi-point instead of multi-drop), EIA-422/V.11 does not allow multiple drivers but only multiple receivers.
RS-422 is a balanced electrical interface capable of operation of T1 s***ds or greater.
It is most commonly implemented using a D-type connector with 37 pins.
The actual connector is specified in the RS-449 specification.
RS422 is a balanced serial interface for the transmission of digital data. The advantage of a balanced signal is the greater immunity to noise. The EIA describes RS422 as a DTE to DCE interface for point-to-point connections.
October 5th, 2011, 05:29 PM #3ICPDAS-USA Guest
A good place to start with that is Wikipedia. It is used to extend the RS-232. There are converter cards and gateays that assist in linking these.