Simply, what is a RS-422 line? Additionally, what does it do/is it used for?
In: Technology
RS stands for “Recommended Standard” and the number indicates which standard: RS-232, RS-422, RS-485, etc…
It doesn’t specify what it is used for, only the electrical specifications.
RS-422 is a
* single master
* serial transmission line, using
* differential signaling (-6V/6V), in a
* point-to-point, but multi-drop, bus topology
Based on these specifications, it might be (un)suitable for certain use cases.
In the past, RS-422 was commonly used to increase the transmission distance of RS-232 signals, by using a signal converter.
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