IEC 60512-29-100 ed1.0 has been released.
The standard is titled, “Connectors for Electronic Equipment – Tests and Measurements – Part 29-100: Signal integrity Tests up to 500 MHz on M12 Style Connectors – Tests 29a to 29g.”
“IEC 60512-29-100:2015 specifies the test methods for transmission performance for M12-style connectors up to 500 MHz. It is also suitable for testing lower frequency connectors if they meet the requirements of the detail specifications and of this standard. The test methods provided herein are:
– insertion loss, test 29a;
– return loss, test 29b;
– near-end crosstalk (NEXT) test 29c;
– far-end crosstalk (FEXT), test 29d;
– transverse conversion loss (TCL), test 29f;
– transverse conversion transfer loss (TCTL), test 29g. For the transfer impedance (ZT) test, see IEC 60512-26-100, test 26e. For the coupling attenuation see ISO/IEC 11801. All test methods apply for two and four pair connectors. Key words: Connectors, Signal Integrity, M12 Style Connector”
More Information Here.
