Rs485 2 Wire Diagram. Refer to the pins below based on your connector type. Keymaster systems hardware installation guidelines wiring rs 485 networks wiring rs 485 networks contents contents 2 diagrams 3 tables 3 introduction 4 the underwriters laboratories inc.
Rs 485 is designed to be a balanced system. Cut off the rs 485 plug indicated above leaving about 3 inches of wire attached. This application note is intended to provide basic guidelines for wiring an rs 485 network.
Consult your devices user manual for reference.
The rs 485 specification officially called tiaeia 485 a does not specifically spell out how an rs 485 network should be wired. These guidelines and sound engineering practices are the basis of this note. On the rs 485 connector place jumper wires between txd and rxd and between txd and rxd. These guidelines will likely be easy to comprehend and apply.