IEC 60512-25-9:2008 PDF

Scope: This part of IEC 60512 defines a test method which is intended to assess the near-end alien crosstalk (ANEXT) and the far-end alien crosstalk (AFEXT) between connectors in close proximity, when mounted in their mounting systems. Both discrete modular connectors and multi-port panel connectors may be tested using this method. This method provides a means to test the alien (exogenous) crosstalk between any two ports, as well as a means to assess the overall alien crosstalk from all other ports. This test procedure is generally applicable to any electrical connector, and is particularly suitable to connectors described in IEC 60603-7 series, IEC 61076-3-104, and other types of connectors for data transmission.

IEC 60512-25-9:2008 Referenced Document

IEC 60603-7 Connectors for electronic equipment - Part 7: Detail specification for 8-way, unshielded, free and fixed connectors*， 2020-10-09 Update
IEC 60603-7-4:2005 Connectors for electronic equipment - Part 7-4: Detail specification for 8-way, unshielded, free and fixed connectors, for data transmissions with frequencies up to 250 MHz
IEC 61076-3-104:2006 Connectors for electronic equipment - Product requirements - Part 3-104: Detail specification for 8-way, shielded free and fixed connectors for data transmissions with frequencies up to 1000 MHz
IEC 61156 Multicore and symmetrical pair/quad cables for digital communications – Part 9: Cables for channels with transmission characteristics up to 2 GHz – Sectional specification (Edition 1.0)*， 2016-04-01 Update

2008 IEC 60512-25-9:2008 Connectors for electrical equipment - Tests and measurements - Part 25-9: Signal integrity tests - Test 25i: Alien crosstalk