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IEC 61156-12-ed.2.0
Multicore and symmetrical pair/quad cables for digital communications - Part 12: Symmetrical single pair cables with transmission characteristics up to 1,25 GHz - Work area wiring - Sectional specification
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STANDARD published on 30.4.2025
The information about the standard:
Designation standards: IEC 61156-12-ed.2.0
Publication date standards: 30.4.2025
SKU: NS-1219864
The number of pages: 26
Approximate weight : 78 g (0.17 lbs)
Country: International technical standard
Category: Technical standards IEC
The category - similar standards:
Annotation of standard text IEC 61156-12-ed.2.0 :
IEC 61156-12:2025 specifies cables intended to be used for single balanced pair cabling for office, home and industrial application described in ISO/IEC 11801-1:2017 and ISO/IEC 11801:2017/AMD1 . An example of existing application is 1000BASE-T1, see ISO/IEC TR 11801 9906. The transmission characteristics of these cables are specified up to a frequency of 1,25 GHz and at a temperature of 20 °C. The T1-B type cable is specified from 0,1 MHz to 600 MHz, the T1 C type cable from 0,1 MHz to 1,25 GHz. Depending on the MICE environment and the installation conditions, either unscreened or screened cables can be used. A blank detail specification can be found in Annex A. This second edition cancels and replaces the first edition published in 2021. This edition constitutes a technical revision. This edition includes the following significant technical changes with respect to the previous edition: a) additional cable type in support of T1-C generic single pair cabling up to 1,25 GHz; b) introduction of low frequency coupling attenuation as an integral parameter describing screening efficiency at frequencies below 30 MHz.
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