Why are Circular Connectors Circular?
A series of IEC specifications defines circular connectors. This is IEC61076. IEC61076 defines various connectors. Regarding circular connectors, there are mainly circular connectors of various specifications such as M5, M8, M12, M16, etc., which stipulate their dimensions, pin distribution, mechanical and electrical characteristics, etc. .
For example, the A code of the M12 connector is used to transmit DC power, the standard 24VDC and the standard sensor signal interface, and the B code is used for DC power signals, such as early field buses such as Profibus and Interbus. C code is used for alternating current, standard 24/110/230VAC, mostly used in the United States. D code is mostly used for Ethernet communication such as Profinet, Ethernet, CC-LinkIE, etc. X encoding is used for Gigebit Ethernet and more.
