EN 61935-2:2010

SLOVENSKI STANDARD
01-november-2010
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Specification for the testing of balanced and coaxial information technology cabling - Part
2: Cords as specified in ISO/IEC 11801 and related standards (IEC 1935-2:2010)
Spezifikation für die Prüfung der symmetrischen und koaxialen informationstechnischen
Verkabelung – Teil 2: Schnüre nach ISO/IEC 11801 und entsprechenden Normen (IEC
1935-2:2010)
Spécification relative aux essais des câblages symétriques et coaxiaux des technologies
de l'information - Partie 2: Cordons tels que spécifiés dans l'ISO/CEI 11801 et normes
associées (CEI 1935-2:2010)
Ta slovenski standard je istoveten z: EN 61935-2:2010
ICS:
33.120.10 Koaksialni kabli. Valovodi Coaxial cables. Waveguides
2003-01.Slovenski inštitut za standardizacijo. Razmnoževanje celote ali delov tega standarda ni dovoljeno.

EUROPEAN STANDARD
EN 61935-2
NORME EUROPÉENNE
September 2010
EUROPÄISCHE NORM
ICS 33.040.20; 33.120.20 Supersedes EN 61935-2:2005

English version
Specification for the testing of balanced and coaxial information
technology cabling -
Part 2: Cords as specified in ISO/IEC 11801 and related standards
(IEC 61935-2:2010)
Spécification relative aux essais  Spezifikation für die Prüfung
des câblages symétriques et coaxiaux der symmetrischen und koaxialen
des technologies de l'information - informationstechnischen Verkabelung –
Partie 2: Cordons tels que spécifiés Teil 2: Schnüre nach ISO/IEC 11801
dans l'ISO/CEI 11801 et normes und entsprechenden Normen
associées (IEC 61935-2:2010)
(CEI 61935-2:2010)
This European Standard was approved by CENELEC on 2010-09-01. CENELEC members are bound to comply
with the CEN/CENELEC Internal Regulations which stipulate the conditions for giving this European Standard
the status of a national standard without any alteration.

Up-to-date lists and bibliographical references concerning such national standards may be obtained on
application to the Central Secretariat or to any CENELEC member.

This European Standard exists in three official versions (English, French, German). A version in any other
language made by translation under the responsibility of a CENELEC member into its own language and notified
to the Central Secretariat has the same status as the official versions.

CENELEC members are the national electrotechnical committees of Austria, Belgium, Bulgaria, Croatia, Cyprus,
the Czech Republic, Denmark, Estonia, Finland, France, Germany, Greece, Hungary, Iceland, Ireland, Italy,
Latvia, Lithuania, Luxembourg, Malta, the Netherlands, Norway, Poland, Portugal, Romania, Slovakia, Slovenia,
Spain, Sweden, Switzerland and the United Kingdom.

CENELEC
European Committee for Electrotechnical Standardization
Comité Européen de Normalisation Electrotechnique
Europäisches Komitee für Elektrotechnische Normung

Management Centre: Avenue Marnix 17, B - 1000 Brussels

© 2010 CENELEC - All rights of exploitation in any form and by any means reserved worldwide for CENELEC members.
Ref. No. EN 61935-2:2010 E
Foreword
The text of document 46/351/FDIS, future edition 3 of IEC 61935-2, prepared by IEC TC 46, Cables,
wires, waveguides, R.F. connectors, R.F. and microwave passive components and accessories, was
submitted to the IEC-CENELEC parallel vote and was approved by CENELEC as EN 61935-2 on
2010-09-01.
This European Standard supersedes EN 61935-2:2005.
This EN 61935-2:2010 differs from EN 61935-2:2005 in that it covers category 6 to category 7 cords as
A A
defined in ISO/IEC 11801.
Attention is drawn to the possibility that some of the elements of this document may be the subject of
patent rights. CEN and CENELEC shall not be held responsible for identifying any or all such patent
rights.
The following dates were fixed:
– latest date by which the EN has to be implemented
at national level by publication of an identical
(dop) 2011-06-01
national standard or by endorsement
– latest date by which the national standards conflicting
(dow) 2013-09-01
with the EN have to be withdrawn
Annex ZA has been added by CENELEC.
__________
Endorsement notice
The text of the International Standard IEC 61935-2:2010 was approved by CENELEC as a European
Standard without any modification.
In the official version, for Bibliography, the following notes have to be added for the standards indicated:
IEC 60068-2-68 NOTE  Harmonized as EN 60068-2-68.
1) 1)
IEC 60512-27-100 NOTE  Harmonized as EN 60512-27-100 .
__________
1)
At draft stage.
- 3 - EN 61935-2:2010
Annex ZA
(normative)
Normative references to international publications
with their corresponding European publications

The following referenced documents are indispensable for the application of this document. For dated
references, only the edition cited applies. For undated references, the latest edition of the referenced
document (including any amendments) applies.

NOTE  When an international publication has been modified by common modifications, indicated by (mod), the relevant EN/HD
applies.
Publication Year Title EN/HD Year

IEC 60068-2-61 - Environmental testing - EN 60068-2-61 -
Part 2: Test methods - Test Z/ABDM: Climatic
sequence
IEC 60603-7 Series Connectors for electronic equipment - Part 7: EN 60603-7 Series
Detail specifications
IEC 60603-7 2008 Connectors for electronic equipment - EN 60603-7 2009
Part 7: Detail specification for 8-way,
unshielded, free and fixed connectors

IEC 60603-7-51 - Connectors for electronic equipment - EN 60603-7-51 -
Part 7-51: Detail specification for 8-way,
shielded, free and fixed connectors, for data
transmissions with frequencies up to 500 MHz

IEC 61076-3-104 - Connectors for electronic equipment - EN 61076-3-104 -
Product requirements -
Part 3-104: Detail specification for 8-way,
shielded free and fixed connectors for data
transmissions with frequencies up to
1 000 MHz
IEC 61076-3-110 - Connectors for electronic equipment - EN 61076-3-110 -
Product requirements -
Part 3-110: Rectangular connectors - Detail
specification for shielded, free and fixed
connectors for data transmission with
frequencies up to 1 000 MHz
IEC 61156 Series Multicore and symmetrical pair/quad cables - -
for digital communications
IEC 61156-1 - Multicore and symmetrical pair/quad cables - -
for digital communications -
Part 1: Generic specification
IEC 61156-6 - Multicore and symmetrical pair/quad cables - -
for digital communications -
Part 6: Symmetrical pair/quad cables with
transmission characteristics up to 1 000 MHz -
Work area wiring - Sectional specification

IEC 61935-1 (mod) 2009 Specification for the testing of balanced and EN 61935-1 2009
coaxial information technology cabling -
Part 1: Installed balanced cabling as specified
in ISO/IEC 11801 and related standards

Publication Year Title EN/HD Year

IEC 62153-4-11 - Metallic communication cable test methods - - -
Part 4-11: Electromagnetic compatibility
(EMC) - Coupling attenuation or screening
attenuation of patch cords, coaxial cable
assemblies, pre-connectorized cables -
Absorbing clamp method
ISO/IEC 11801 - Information technology - Generic cabling for - -
customer premises
IEC 61935-2 ®
Edition 3.0 2010-07
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 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/CEI 11801
et normes associées
INTERNATIONAL
ELECTROTECHNICAL
COMMISSION
COMMISSION
ELECTROTECHNIQUE
PRICE CODE
INTERNATIONALE
U
CODE PRIX
ICS 33.040.20; 33.120.20 ISBN 978-2-88912-001-7
– 2 – 61935-2 © IEC:2010
CONTENTS
FOREWORD.4
INTRODUCTION.6

1 Scope.7
2 Normative references .7
3 Terms and definitions .8
4 General requirements and test configuration .8
4.1 Cable and connector design .8
4.2 Balanced cord, cable and connector tests .8
4.3 Test configuration and equipment.8
4.4 Balanced cord tests requirements .9
5 Acceptance tests .10
5.1 Visual inspection .10
5.2 Wire map.11
5.3 Propagation delay .12
5.4 Delay skew.12
5.5 Insertion loss.12
5.6 Return loss.12
5.7 Near end crosstalk (NEXT).13
5.8 Assumptions used in the development of cord requirements.16
6 Balanced cord test procedure – Network analyser test configuration .16
7 Periodic tests .17
7.1 General .17
7.2 Tensile strength .17
7.3 Flexure.18
7.4 Bending.19
7.5 Twisting.19
7.6 Crushing .20
7.7 Dust test.21
7.8 Coupling attenuation .23
7.9 Climatic sequence .24
8 Test head requirements.24
8.1 General .24
8.2 Minimum requirements for all test head designs .24
8.3 Additional FEXT requirements for balanced connector compatible test heads.25
8.4 Additional return loss requirements for balanced connector compatible test
heads .25
8.5 NEXT loss centering requirements for balanced connector compatible test
heads .25
Bibliography.27

61935-2 © IEC:2010 – 3 –
Figure 1 – Test configuration for balanced cord for NEXT and return loss
measurements .9
Figure 2 – Correct pairing .11
Figure 3 – Incorrect pairing .11
Figure 4 – Initial marking of the cable sheath.17
Figure 5 – Final visual inspection.17
Figure 6 – Fixture for balanced cord flexure test .18
Figure 7 – Bending test: assembly in U shape .19
Figure 8 – Twisting test: assembly in U shape .20
Figure 9 – Fixture for cable crushing test .
...