BSI PD IEC/TR 61156-1-2:2009+A1:2014
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Multicore and symmetrical pair/quad cables for digital communications – Electrical transmission characteristics and test methods of symmetrical pair/quad cables
Published By | Publication Date | Number of Pages |
BSI | 2014 | 74 |
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:
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the characteristic impedance test methods and function fitting procedures of 3.3.6;
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Annex A covering basic transmission line equations and test methods;
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Annex B covering the open/short-circuit method;
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Annex C covering unbalance attenuation.