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.
DS/EN 60512-25-2:2002 history
2002DS/EN 60512-25-2:2002 Connectors for electronic equipment - Tests and measurements - Part 25-2: Test 25b: Attenuation (insertion loss)