IEC/TR 61156-1-3:2011(E) is a supplement to IEC 61156-1 Edition 3 (2007): Multicore and symmetrical pair/quad cables for digital communications - Part 1: Generic specification. It covers the following topics:
- the near-end crosstalk test methods and length correction procedures of 6.3.5;
- the far-end crosstalk test methods and length correction procedures of 6.3.6;
- the concatenation of measured cable segments, even if they are of different design.