BUS-TR
Logic bus transceiver
Drives data between two digital buses according to the selected direction and enable conditions.
Schematic
Symbols · RS422
RS-422 interface
In plain English
What does RS-422 interface mean?
An RS-422 interface uses differential signalling for its selected serial connection.
A simple example
A controller can communicate through a suitable differential driver and receiver arrangement.
What the drawings help you do
Identify the driver and receiver ends of the intended differential connection. Do not copy an RS-485 multi-driver bus arrangement just because both names refer to differential interfaces. The chosen parts and network design establish the permitted connections and direction of information flow.
- Driver
- The circuit that produces the electrical signal on a connection.
- Receiver
- The circuit that interprets the incoming electrical signal.
Before using this reference
- Identify each driver and its receivers.
- Reference the selected termination and cable arrangement.
- Show logic connections and the receiving equipment’s electrical reference.
Is RS-422 interchangeable with an RS-485 bus?
Not automatically. Driver arrangements, permitted connections and device characteristics differ. Confirm the complete link rather than treating the interface names as equivalent wiring instructions.
Read the source: RS-485 and RS-422 interfaces
Schematic · RS422
A distinction that matters
An RS-422 label does not automatically imply an RS-485 multi-driver bus arrangement.
Sources you can follow
These public references support the explanation and provide further detail. Their graphics and downloadable files remain with their publishers.
RS-485 and RS-422 interfaces
RS-485 and RS-422 interfaces: public technical context for the named function. Product and compliance details remain with the publisher.
About this graphic
This illustration was authored independently by Elora Grid to explain the concept. It is not reproduced from a customer drawing, an official standard graphic or a manufacturer CAD file. Its correspondence to an exact IEC or IEEE symbol identifier has not been certified.
SVG and DXF downloads contain this original artwork. DXF uses unscaled drawing units; a GA envelope supplies no product dimensions, clearances or fabrication information. Original artwork is available under CC BY 4.0. Third-party references retain their own terms.
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