EN 61935-1:2005
(Main)Testing of balanced communication cabling in accordance with standards series EN 50173 - Part 1: Installed cabling
Testing of balanced communication cabling in accordance with standards series EN 50173 - Part 1: Installed cabling
specifies reference measurement procedures for cabling parameters and the requirements for field tester accuracy to measure cabling parameters identified in ISO/IEC 11801. References in this standard to ISO/IEC 11801 mean ISO/IEC 11801 or equivalent cabling standards.
Prüfung der symmetrischen Kommunikationsverkabelung nach der Normenreihe EN 50173 - Teil 1: Installierte Verkabelung
Essais de câblages de télécommunications symétriques selon la série de normes EN 50173 - Partie 1: Câblages installés
spécifie les procédures des mesures de référence pour les paramètres de câblage et les exigences pour la précision des appareils de contrôle sur le terrain pour mesurer les paramètres de câblage identifiés dans l'ISO/IEC 11801. Les références faites dans la présente norme à l'ISO/IEC 11801 renvoient à la norme ISO/IEC 11801 ou à des normes de câblage équivalentes.
Preskušanje urejenega kabliranja za komunikacije v skladu s standardom EN 50173 – 1. del: Kabelska inštalacija (IEC 61935-1:2005, spremenjen)
General Information
Relations
Standards Content (Sample)
SLOVENSKI SIST EN 61935-1:2006
STANDARD
marec 2006
Preskušanje urejenega kabliranja za komunikacije v skladu s standardom EN
50173 – 1. del: Kabelska inštalacija (IEC 61935-1:2005, spremenjen)
Testing of balanced communication cabling in accordance with standards series
EN 50173 - Part 1: Installed cabling (IEC 61935-1:2005, modified)
ICS 33.120.10 Referenčna številka
© Standard je založil in izdal Slovenski inštitut za standardizacijo. Razmnoževanje ali kopiranje celote ali delov tega dokumenta ni dovoljeno
EUROPEAN STANDARD EN 61935-1
NORME EUROPÉENNE
EUROPÄISCHE NORM December 2005
ICS 33.120.10 Supersedes EN 61935-1:2000 + A1:2002
English version
Testing of balanced communication cabling
in accordance with standards series EN 50173
Part 1: Installed cabling
(IEC 61935-1:2005, modified)
Essais de câblages de Prüfung der symmetrischen
télécommunications symétriques Kommunikationsverkabelung
selon la série de normes EN 50173 nach der Normenreihe EN 50173
Partie 1: Câblages installés Teil 1: Installierte Verkabelung
(CEI 61935-1:2005, modifiée) (IEC 61935-1:2005, modifiziert)
This European Standard was approved by CENELEC on 2005-10-01. 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, Cyprus, Czech
Republic, Denmark, Estonia, Finland, France, Germany, Greece, Hungary, Iceland, Ireland, Italy, Latvia,
Lithuania, Luxembourg, Malta, Netherlands, Norway, Poland, Portugal, Slovakia, Slovenia, Spain, Sweden,
Switzerland and United Kingdom.
CENELEC
European Committee for Electrotechnical Standardization
Comité Européen de Normalisation Electrotechnique
Europäisches Komitee für Elektrotechnische Normung
Central Secretariat: rue de Stassart 35, B - 1050 Brussels
© 2005 CENELEC - All rights of exploitation in any form and by any means reserved worldwide for CENELEC members.
Ref. No. EN 61935-1:2005 E
Foreword
The text of document 46A/717/FDIS, future edition 2 of IEC 61935-1, prepared by SC 46A, Coaxial
cables, of 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 61935-1 on 2005-10-01.
This European Standard supersedes EN 61935-1:2000 + corrigendum February 2001 + A1:2002.
This new edition was written to describe Level IV testers in support of ISO/IEC 11801:2002 and the series
EN 50173.
The following dates were fixed:
– latest date by which the EN has to be implemented
at national level by publication of an identical
national standard or by endorsement (dop) 2006-07-01
– latest date by which the national standards conflicting
with the EN have to be withdrawn (dow) 2008-10-01
Annex ZA has been added by CENELEC.
__________
Endorsement notice
The text of the International Standard IEC 61935-1:2005 was approved by CENELEC as a European
Standard with agreed common modifications as given below.
COMMON MODIFICATIONS
Title page
Replace "ISO/IEC 11801" by "standards series EN 50173".
General
Replace all other occurrences of "ISO/IEC 11801" and "ISO/IEC 11801 (or equivalent)" by "EN 50173".
This replacement is to be made in the introduction and in (Sub)Clauses 3, 3.1, 4.2.4 (twice), 5.1 (four
times), 5.3.1, 5.3.2.2, 5.3.3, 5.3.4 (twice), 5.3.5, 5.3.6, 5.3.8, 5.3.9, 5.3.10, 5.5.1, 6.2 and 6.8.1.
Clause 1, Scope
Replace the first paragraph by:
This part of EN 61935 specifies reference measurement procedures for cabling parameters and the
requirements for field tester accuracy to measure cabling parameters identified in EN 50173.
Clause 2, Normative references
Add:
EN 50173, series, Information technology - Generic cabling systems
- 3 - EN 61935-1:2005
Clause 3, Terms and definitions
Replace definitions 3.2 and 3.3 by:
3.2
reflection coefficient
ratio of the voltage of the reflected wave to the voltage of the incident wave at the port or transverse
cross-section to a cable assembly when the cable assembly is terminated with its application or nominal
impedances, Z .
cnom
ZZ−
cnom in
C = (1)
r
ZZ+
cnom in
3.3
return loss
ratio in decibels of the voltage delivered to a cable assembly terminated at the far end with its nominal
characteristic impedance, to the reflected voltage at the input port of the cable assembly.
u
i
R = 20log
l
u
r
or
ZZ+
cnom in
R = 20log (2)
l
ZZ−
cnom in
where
u is the incident voltage;
i
u is the reflected voltage.
r
___________
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 Where an international publication has been modified by common modifications, indicated by (mod), the relevant EN/HD
applies.
Publication Year Title EN/HD Year
– Information technology - Generic cabling systems EN 50173 Series
1)
IEC 60169-16 – Radio-frequency connectors – –
Part 16: R.F. coaxial connectors with inner
diameter of outer conductor 7 mm (0,276 in)
with screw coupling - Characteristic impedance
50 ohms (75 ohms) (Type N)
1)
IEC 60169-22 – Part 22: R.F. two-pole bayonet coupled – -
connectors for use with shielded balanced cables
having twin inner conductors (Type BNO)
IEC 60603-7 1996 Connectors for frequencies below 3 MHz for use EN 60603-7 1997
with printed boards
Part 7: Detail specification for connectors, 8-way,
including fixed and free connectors with common
mating features, with assessed quality
1) 2)
IEC 61076-3-104 – Connectors for electronic equipment EN 61076-3-104 2003
Part 3-104: Rectangular connectors - Detail
specification for 8-way, shielded free and fixed
connectors for data transmissions with
frequencies up to 600 MHz minimum
3) 1)
ISO/IEC 14763-1 – Information technology – Implementation and – –
operation of customer premises cabling
Part 1: Administration
ITU-T Rec. G.117 1996 Transmission aspects of unbalance about earth – –
ITU-T Rec. O.9 1988 Measuring arrangements to assess the degree of – –
unbalance about earth
1)
Undated reference.
2)
Valid edition at date of issue.
3)
EN 50174-1, Information technology - Cabling installation -- Part 1: Specification and quality assurance, which is related to, but
not directly equivalent with ISO/IEC 14763-1, applies instead.
NORME CEI
INTERNATIONALE
IEC
61935-1
INTERNATIONAL
Deuxième édition
STANDARD
Second edition
2005-08
Essais de câblages de télécommunications
symétriques selon l'ISO/IEC 11801 –
Partie 1:
Câblages installés
Testing of balanced communication
cabling in accordance with ISO/IEC 11801 –
Part 1:
Installed cabling
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électronique ou mécanique, y compris la photocopie et les photocopying and microfilm, without permission in writing from
microfilms, sans l'accord écrit de l'éditeur. the publisher.
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61935-1 IEC:2005 – 3 –
CONTENTS
FOREWORD.7
INTRODUCTION.11
1 Scope.13
2 Normative references .13
3 Terms and definitions .15
4 Reference measurement procedures for electrical properties .21
4.1 General .21
4.2 Test equipment considerations .21
4.3 DC loop resistance .33
4.4 Direct current (d.c.) resistance unbalance .35
4.5 Insertion loss.39
4.6 Propagation delay and delay skew .41
4.7 Near-end crosstalk (NEXT), pair to pair and power sum .45
4.8 Attenuation to crosstalk ratio (ACR), pair to pair and power sum .49
4.9 Far-end crosstalk (FEXT), pair to pair and power sum .51
4.10 Equal level far-end crosstalk (ELFEXT) .57
4.11 Return loss.57
4.12 Unbalance attenuation.61
4.13 Coupling attenuation .61
5 Field test measurement requirements for electrical properties .61
5.1 General .61
5.2 Cabling configurations tested .63
5.3 Field test parameters.63
5.4 Data reporting and accuracy.75
5.5 Field measurement procedures .87
6 Field tester measurement accuracy requirements .89
6.1 General .89
6.2 Measurement accuracy specifications common to level IIE, level III and
level IV field testers.93
6.3 Accuracy performance requirements for level IIE field testers.93
6.4 Accuracy performance requirements for level III field testers .97
6.5 Accuracy performance requirements for level IV field testers.101
6.6 Procedures for determining field tester parameters .105
6.7 Measurement error models.121
6.8 Network analyser measurement comparisons .133
Bibliography.147
61935-1 IEC:2005 – 5 –
Figure 1 – Resistor load.23
Figure 2 – Reference planes for permanent link and channel .25
Figure 3 – 180° hybrid used as a balun.27
Figure 4 – Loop resistance measurement .35
Figure 5 – DC resistance unbalance measurement (test configuration for one wire).37
Figure 6 – Insertion loss test configuration.39
Figure 7 – NEXT test configuration .47
Figure 8 – FEXT test configuration.53
Figure 9 – Return loss test configuration.59
Figure 10 – Correct pairing .65
Figure 11 – Incorrect pairing .65
Figure 12 – Example of equipment tolerance region (NEXT) .75
Figure 13 – Block diagram for measuring output signal balance .107
Figure 14 – Block diagram to measure common mode rejection .
...
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