This part of IEC 60512 is applicable to electrical connectors, sockets, cable assemblies or interconnection systems. This standard describes a frequency and a time domain method to measure attenuation/ insertion loss as a function of frequency. NOTE “Attenuation” is referenced throughout the document. Test professionals must use the appropriate term (attenuation or insertion loss) when summarizing and reporting the test measurements according to the type of specimen and transmission line being measured.