PD IEC/TR 61156-1-2:2009+A1:2014
Superseded
A superseded Standard is one, which is fully replaced by another Standard, which is a new edition of the same Standard.
A superseded Standard is one, which is fully replaced by another Standard, which is a new edition of the same Standard.
Multicore and symmetrical pair/quad cables for digital communications Electrical transmission characteristics and test methods of symmetrical pair/quad cables
Hardcopy , PDF
12-05-2023
English
10-31-2014
This technical report is a revision of the symmetrical pair/quad electrical transmission characteristics present in IEC 61156-1:2002 (Edition 2) and not carried into IEC 61156-1:2007 (Edition 3).
This technical report includes the following topics from IEC 61156-1:2002:
the characteristic impedance test methods and function fitting procedures of 3.3.6;
Annex A covering basic transmission line equations and test methods;
Annex B covering the open/short-circuit method;
Annex C covering unbalance attenuation.
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