IEC 62783-2-2019 pdf free.Twinax cables for digital communications – Part 2: Family specification- Cable for Ethernet-over-twinax physical interfaces.
The following documents are referred to in the text in such a way that some or all of theircontent constitutes requirements of this document. For dated references，only the editioncited applies. For undated references, the latest edition of the referenced document (includingany amendments) applies.
IEC TR61156-1-22:2009, Multicore andsymmetrical pairlquadcables for digitalcommunications – Part 1-2: Electrical transmission characteristics and test methods ofsymmetrical pairlquad cables
EC TR61156-1-2:2009/AMD1:2014
IEC 62783-1:—3,Twinax cables for digital communications – Part 1: Generic specification
3Terms and definitions
For the purposes of this document, the terms and definitions given in lEC 62783-1 apply.
ISO and lEC maintain terminological databases for use in standardization at the followingaddresses:
IEC Electropedia: available at http://www.electropedia.org/
ISO Online browsing platform: available at http://www.iso.orglobp
4Requirements for cables construction
4.1General remarks
These twinax cables’ characteristic impedance is 100 Q.These twinax cable configurationsrange from 2 to 20 twinax elements，depending on the specific Ethernet implementation.Conductor size may range from 0,2 mm to o,6 mm (32 AwG to 22 AWG).
4.2Cable construction
4.2.1General The cable element and the cable shall be constructed accordingly to conform to IEC 62783-1and to this document.
4.2.2Conductor The conductor shall conform to lEC 62783-1 and to the detail specifications.
4.2.3lnsulation The insulation shall conform to lEC 62783-1 and to the detail specifications.
4.2.4Colour code The colour code shall conform to the detail specifications.
4.2.5Drain wire The drain wire shall conform to lEC 62783-1 and to the detail specifications.
4.2.6Screening of cable assembly element The cable element screen shall conform to lEC 62783-1 and to the detail specifications.
5.2.1 Conductor resistance The conductor resistance shall conform to lEC 62783-1 and to the detail specifications.
5.2.2Resistance unbalance The resistance unbalance shall conform to lEC 62783-1 and to the detail specifications.
5.2.3Dielectric strength Dielectric strength shall conform to lEC 62783-1 and to the detail specifications.
5.2.4 Insulation resistance Insulation resistance shall conform to lEC 62783-1 and to the detail specifications.
5.2.5 Mutual capacitance Mutual capacitance shall conform to lEC 62783-1 and to the detail specifications.
5.2.6Surface transfer impedance Surface transfer impedance of the screen shall conform to lEC 62783-1 and to the detailspecifications.
5.3Transmission requirements and tests
5.3.1General Transmission requirements shall conform to lEC 62783-1 and to the detail specifications,overthe frequency range specified in the detail specifications.
Transmission requirements’ conformance is determined in accordance with lEC 62783-1 usingtest procedures according to lEC TR61156-1-2:2009/AMD1:2014.IEC 62783-2 pdf download.