IEC 61935-2:2022
(Main)Specification for the testing of balanced and coaxial information technology cabling - Part 2: Cords as specified in ISO/IEC 11801-1 and related standards
Specification for the testing of balanced and coaxial information technology cabling - Part 2: Cords as specified in ISO/IEC 11801-1 and related standards
IEC 61935-2:2021 specifies test methods for balanced and coaxial cords, which are used as equipment cords, patch cords, and CP cords, within cabling systems, in accordance with ISO/IEC 11801-1. The test methods and associated requirements are provided to demonstrate performance and reliability and to ensure compatibility of these balanced and coaxial cords during their operational lifetime. This document may also be used for providing test methodology for assessing the performance of other cords.
This fourth edition cancels and replaces the third edition published in 2010. This edition includes the following significant technical changes with respect to the previous edition:
- inclusion of cords up to category 8.1 and category 8.2, as defined in ISO/IEC 11801-1.
Spécification relative aux essais des câblages symétriques et coaxiaux des technologies de l'information - Partie 2: Cordons tels que spécifiés dans l’ISO/IEC 11801-1 et normes associées
IEC 61935-2:2022 spécifie les méthodes d’essai applicables aux cordons à paires symétriques et aux cordons coaxiaux utilisés comme cordons d’équipements, cordons de brassage et cordons CP dans des systèmes de câblage, conformément à l’ISO/IEC 11801‑1. Les méthodes d’essai et leurs exigences associées permettent de démontrer les performances et la fiabilité et de garantir la compatibilité de ces cordons à paires symétriques et cordons coaxiaux au cours de leur durée de vie opérationnelle. Le présent document peut également être utilisé en vue de fournir une méthodologie d'essai pour l'évaluation des performances d'autres cordons.
Cette quatrième édition annule et remplace la troisième édition parue en 2010. Cette édition inclut les modifications techniques majeures suivantes par rapport à l’édition précédente:
a. inclusion des cordons des catégories 8.1 et 8.2 tels qu'ils sont définis dans l’ISO/IEC 11801‑1.
General Information
Relations
Buy Standard
Standards Content (Sample)
IEC 61935-2 ®
Edition 4.0 2022-02
COMMENTED VERSION
INTERNATIONAL
STANDARD
colour
inside
Specification for the testing of balanced and coaxial information technology
cabling –
Part 2: Cords as specified in ISO/IEC 11801-1 and related standards
All rights reserved. Unless otherwise specified, no part of this publication may be reproduced or utilized in any form
or by any means, electronic or mechanical, including photocopying and microfilm, without permission in writing from
either IEC or IEC's member National Committee in the country of the requester. If you have any questions about IEC
copyright or have an enquiry about obtaining additional rights to this publication, please contact the address below or
your local IEC member National Committee for further information.
IEC Secretariat Tel.: +41 22 919 02 11
3, rue de Varembé info@iec.ch
CH-1211 Geneva 20 www.iec.ch
Switzerland
About the IEC
The International Electrotechnical Commission (IEC) is the leading global organization that prepares and publishes
International Standards for all electrical, electronic and related technologies.
About IEC publications
The technical content of IEC publications is kept under constant review by the IEC. Please make sure that you have the
latest edition, a corrigendum or an amendment might have been published.
IEC publications search - webstore.iec.ch/advsearchform IEC Products & Services Portal - products.iec.ch
The advanced search enables to find IEC publications by a Discover our powerful search engine and read freely all the
variety of criteria (reference number, text, technical publications previews. With a subscription you will always
committee, …). It also gives information on projects, replaced have access to up to date content tailored to your needs.
and withdrawn publications.
Electropedia - www.electropedia.org
IEC Just Published - webstore.iec.ch/justpublished
The world's leading online dictionary on electrotechnology,
Stay up to date on all new IEC publications. Just Published
containing more than 22 300 terminological entries in English
details all new publications released. Available online and
and French, with equivalent terms in 19 additional languages.
once a month by email.
Also known as the International Electrotechnical Vocabulary
(IEV) online.
IEC Customer Service Centre - webstore.iec.ch/csc
If you wish to give us your feedback on this publication or
need further assistance, please contact the Customer Service
Centre: sales@iec.ch.
IEC 61935-2 ®
Edition 4.0 2022-02
COMMENTED VERSION
INTERNATIONAL
STANDARD
colour
inside
Specification for the testing of balanced and coaxial information technology
cabling –
Part 2: Cords as specified in ISO/IEC 11801-1 and related standards
INTERNATIONAL
ELECTROTECHNICAL
COMMISSION
ICS 33.040.20; 33.120.20 ISBN 978-2-8322-5010-5
– 2 – IEC 61935‑2:2022 CMV © IEC 2022
CONTENTS
FOREWORD . 5
INTRODUCTION . 7
1 Scope . 8
2 Normative references . 8
3 Terms and definitions . 11
4 General Requirements and test configuration . 11
4.1 Cable and connector design .
4.2 Balanced cord, cable and connector tests .
4.3 Test configuration and equipment .
4.4 Balanced cord tests requirements .
4.1 Cord components: cable and connector . 14
4.2 Cord tests . 14
4.2.1 General . 14
4.2.2 Acceptance tests . 15
4.2.3 Periodic tests . 15
4.3 Cord test procedure . 16
4.3.1 General . 16
4.3.2 Electrical transmission parameters, test fixtures and reference test
heads . 16
5 Acceptance tests and additional optional tests . 16
5.1 Visual inspection (balanced and coaxial cords) . 16
5.2 Wire map (balanced cords) . 17
5.3 Propagation delay .
5.4 Delay skew .
5.5 Insertion loss .
5.6 Return loss .
5.7 Near end crosstalk (NEXT) .
5.8 Assumptions used in the development of cord requirements .
5.3 Return loss (balanced and coaxial cords) . 23
5.4 Pair-to-pair NEXT and PS NEXT (balanced cords) . 23
5.5 Insertion loss and attenuation (balanced and coaxial cords) . 23
5.6 Pair-to-pair ACRF and PS ACRF (balanced cords) . 23
5.7 Alien crosstalk, PS ANEXT and PS AACRF, (balanced cords) . 23
5.8 Unbalance attenuation, TCL and EL TCTL, (balanced cords) . 23
5.9 Coupling attenuation (screened balanced cords) . 23
5.10 Screening attenuation and transfer impedance (screened balanced and
coaxial cords) . 23
5.11 Propagation delay (balanced and coaxial cords) . 23
5.12 Delay skew (balanced cords) . 24
5.13 DC resistance (balanced and coaxial cords). 24
5.14 DC resistance unbalance within pairs (balanced cords) . 24
5.15 DC resistance unbalance between pairs (balanced cords) . 24
6 Balanced cord test procedure – Network analyser test configuration .
6 Periodic tests, procedures . 24
6.1 General . 24
6.2 Tensile strength . 24
IEC 61935‑2:2022 CMV © IEC 2022 – 3 –
6.2.1 Object . 24
6.2.2 Procedure . 24
6.2.3 Requirements . 25
6.2.4 Detail specification . 25
6.3 Flexure . 25
6.3.1 Object . 25
6.3.2 Procedure . 26
6.3.3 Requirements . 26
6.3.4 Information to be given in the detail specification . 26
6.4 Bending . 26
6.4.1 Object . 26
6.4.2 Procedures . 27
6.5 Twisting . 27
6.5.1 Object . 27
6.5.2 Procedures . 27
6.5.3 Requirements . 28
6.6 Crushing . 28
6.6.1 Object . 28
6.6.2 Procedure . 28
6.6.3 Requirements . 29
6.6.4 Information to be given in the detail specification . 29
6.7 Dust test . 29
6.7.1 Object . 29
6.7.2 Procedure . 29
6.7.3 Requirements . 30
6.7.4 Information to be given in the detail specification . 30
6.7.5 Test chamber. 30
7.8 Coupling attenuation .
6.8 Climatic sequence. 31
6.8.1 General . 31
6.8.2 Object . 32
6.8.3 Procedure . 32
6.8.4 Requirements . 32
6.8.5 Information to be given in the detail specification . 32
8 Test head requirements .
8.1 General .
8.2 Minimum requirements for all test head designs .
8.3 Additional FEXT requirements for balanced connector compatible test heads .
8.4 Additional return loss requirements for balanced connector compatible test
heads.
8.5 NEXT loss centering requirements for balanced connector compatible test
heads.
.............................................. 35
A.1 General . 35
A.2 Coaxial cord transmission requirements . 35
A.2.1 Coaxial cord return loss . 35
A.2.2 Coaxial cord screening attenuation . 35
A.3 Coaxial cord testing . 36
A.3.1 Cable and connector design . 36
– 4 – IEC 61935‑2:2022 CMV © IEC 2022
A.3.2 Coaxial cord test procedure . 36
A.3.3 Coaxial cords reference test connectors . 36
........................................... 37
B.1 General requirements .
...
IEC 61935-2 ®
Edition 4.0 2022-02
INTERNATIONAL
STANDARD
NORME
INTERNATIONALE
colour
inside
Specification for the testing of balanced and coaxial information technology
cabling –
Part 2: Cords as specified in ISO/IEC 11801-1 and related standards
Spécification relative aux essais des câblages symétriques et coaxiaux des
technologies de l’information –
Partie 2: Cordons tels que spécifiés dans l’ISO/IEC 11801-1 et normes associées
All rights reserved. Unless otherwise specified, no part of this publication may be reproduced or utilized in any form
or by any means, electronic or mechanical, including photocopying and microfilm, without permission in writing from
either IEC or IEC's member National Committee in the country of the requester. If you have any questions about IEC
copyright or have an enquiry about obtaining additional rights to this publication, please contact the address below or
your local IEC member National Committee for further information.
Droits de reproduction réservés. Sauf indication contraire, aucune partie de cette publication ne peut être reproduite
ni utilisée sous quelque forme que ce soit et par aucun procédé, électronique ou mécanique, y compris la photocopie
et les microfilms, sans l'accord écrit de l'IEC ou du Comité national de l'IEC du pays du demandeur. Si vous avez des
questions sur le copyright de l'IEC ou si vous désirez obtenir des droits supplémentaires sur cette publication, utilisez
les coordonnées ci-après ou contactez le Comité national de l'IEC de votre pays de résidence.
IEC Secretariat Tel.: +41 22 919 02 11
3, rue de Varembé info@iec.ch
CH-1211 Geneva 20 www.iec.ch
Switzerland
About the IEC
The International Electrotechnical Commission (IEC) is the leading global organization that prepares and publishes
International Standards for all electrical, electronic and related technologies.
About IEC publications
The technical content of IEC publications is kept under constant review by the IEC. Please make sure that you have the
latest edition, a corrigendum or an amendment might have been published.
IEC publications search - webstore.iec.ch/advsearchform IEC Products & Services Portal - products.iec.ch
The advanced search enables to find IEC publications by a Discover our powerful search engine and read freely all the
variety of criteria (reference number, text, technical publications previews. With a subscription you will always
committee, …). It also gives information on projects, replaced have access to up to date content tailored to your needs.
and withdrawn publications.
Electropedia - www.electropedia.org
IEC Just Published - webstore.iec.ch/justpublished
The world's leading online dictionary on electrotechnology,
Stay up to date on all new IEC publications. Just Published
containing more than 22 300 terminological entries in English
details all new publications released. Available online and
and French, with equivalent terms in 19 additional languages.
once a month by email.
Also known as the International Electrotechnical Vocabulary
(IEV) online.
IEC Customer Service Centre - webstore.iec.ch/csc
If you wish to give us your feedback on this publication or
need further assistance, please contact the Customer Service
Centre: sales@iec.ch.
A propos de l'IEC
La Commission Electrotechnique Internationale (IEC) est la première organisation mondiale qui élabore et publie des
Normes internationales pour tout ce qui a trait à l'électricité, à l'électronique et aux technologies apparentées.
A propos des publications IEC
Le contenu technique des publications IEC est constamment revu. Veuillez vous assurer que vous possédez l’édition la
plus récente, un corrigendum ou amendement peut avoir été publié.
Recherche de publications IEC - IEC Products & Services Portal - products.iec.ch
webstore.iec.ch/advsearchform Découvrez notre puissant moteur de recherche et consultez
La recherche avancée permet de trouver des publications IEC gratuitement tous les aperçus des publications. Avec un
en utilisant différents critères (numéro de référence, texte, abonnement, vous aurez toujours accès à un contenu à jour
comité d’études, …). Elle donne aussi des informations sur adapté à vos besoins.
les projets et les publications remplacées ou retirées.
Electropedia - www.electropedia.org
IEC Just Published - webstore.iec.ch/justpublished
Le premier dictionnaire d'électrotechnologie en ligne au
Restez informé sur les nouvelles publications IEC. Just
monde, avec plus de 22 300 articles terminologiques en
Published détaille les nouvelles publications parues.
anglais et en français, ainsi que les termes équivalents dans
Disponible en ligne et une fois par mois par email.
19 langues additionnelles. Egalement appelé Vocabulaire
Electrotechnique International (IEV) en ligne.
Service Clients - webstore.iec.ch/csc
Si vous désirez nous donner des commentaires sur cette
publication ou si vous avez des questions contactez-nous:
sales@iec.ch.
IEC 61935-2 ®
Edition 4.0 2022-02
INTERNATIONAL
STANDARD
NORME
INTERNATIONALE
colour
inside
Specification for the testing of balanced and coaxial information technology
cabling –
Part 2: Cords as specified in ISO/IEC 11801-1 and related standards
Spécification relative aux essais des câblages symétriques et coaxiaux des
technologies de l’information –
Partie 2: Cordons tels que spécifiés dans l’ISO/IEC 11801-1 et normes associées
INTERNATIONAL
ELECTROTECHNICAL
COMMISSION
COMMISSION
ELECTROTECHNIQUE
INTERNATIONALE
ICS 33.040.20; 33.120.20 ISBN 978-2-8322-1069-0
– 2 – IEC 61935‑2:2022 © IEC 2022
CONTENTS
FOREWORD . 5
INTRODUCTION . 7
1 Scope . 8
2 Normative references . 8
3 Terms and definitions . 11
4 Requirements . 11
4.1 Cord components: cable and connector . 11
4.2 Cord tests . 12
4.2.1 General . 12
4.2.2 Acceptance tests . 13
4.2.3 Periodic tests . 13
4.3 Cord test procedure . 13
4.3.1 General . 13
4.3.2 Electrical transmission parameters, test fixtures and reference test
heads . 14
5 Acceptance tests and additional optional tests . 14
5.1 Visual inspection (balanced and coaxial cords) . 14
5.2 Wire map (balanced cords) . 14
5.3 Return loss (balanced and coaxial cords) . 15
5.4 Pair-to-pair NEXT and PS NEXT (balanced cords) . 15
5.5 Insertion loss and attenuation (balanced and coaxial cords) . 15
5.6 Pair-to-pair ACRF and PS ACRF (balanced cords) . 15
5.7 Alien crosstalk, PS ANEXT and PS AACRF, (balanced cords) . 15
5.8 Unbalance attenuation, TCL and EL TCTL, (balanced cords) . 15
5.9 Coupling attenuation (screened balanced cords) . 15
5.10 Screening attenuation and transfer impedance (screened balanced and
coaxial cords) . 15
5.11 Propagation delay (balanced and coaxial cords) . 16
5.12 Delay skew (balanced cords) . 16
5.13 DC resistance (balanced and coaxial cords). 16
5.14 DC resistance unbalance within pairs (balanced cords) . 16
5.15 DC resistance unbalance between pairs (balanced cords) . 16
6 Periodic tests, procedures . 16
6.1 General . 16
6.2 Tensile strength . 16
6.2.1 Object . 16
6.2.2 Procedure . 16
6.2.3 Requirements . 17
6.2.4 Detail specification . 17
6.3 Flexure . 17
6.3.1 Object . 17
6.3.2 Procedure . 17
6.3.3 Requirements . 18
6.3.4 Information to be given in the detail specification . 18
6.4 Bending . 18
6.4.1 Object . 18
IEC 61935‑2:2022 © IEC 2022 – 3 –
6.4.2 Procedures . 18
6.5 Twisting . 19
6.5.1 Object . 19
6.5.2 Procedures . 19
6.5.3 Requirements . 20
6.6 Crushing . 20
6.6.1 Object . 20
6.6.2 Procedure . 20
6.6.3 Requirements . 21
6.6.4 Information to be given in the detail specification . 21
6.7 Dust test . 21
6.7.1 Object . 21
6.7.2 Procedure . 22
6.7.3 Requirements . 22
6.7.4 Information to be given in the detail specification . 22
6.7.5 Test chamber. 22
6.8 Climatic sequence. 23
6.8.1 General . 23
6.8.2 Object . 23
6.8.3 Procedure . 24
6.8.4 Requirements . 24
6.8.5 Information to be given in the detail specification . 24
Annex A (normative) Coaxial cord transmission requirements . 25
A.1 General . 25
A.2 Coaxial cord transmission requirements . 25
A.2.1 Coaxial cord return loss .
...
Questions, Comments and Discussion
Ask us and Technical Secretary will try to provide an answer. You can facilitate discussion about the standard in here.