IEC 61156-11 Ed. 2.1 en:2025

Current Revision
Multicore and symmetrical pair/quad cables for digital communications - Part 11: Symmetrical single pair cables with transmission characteristics up to 1,25 GHz - Horizontal floor wiring - Sectional specification

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Multicore and symmetrical pair/quad cables for digital communications - Part 11: Symmetrical single pair cables with transmission characteristics up to 1,25 GHz - Horizontal floor wiring - Sectional specification

IEC 61156-11:2023+AMD1:2025 CSV describes cables intended to be used for single balanced pair (office, home, industrial) applications according to ISO/IEC 11801-1.

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-C type cable is specified up to 600 MHz, the T1-D type cable up 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.

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