SIST EN 61935-1:2010

Testing of balanced communication cabling in accordance with ISO/IEC 11801 - Part 1: Installed cabling (IEC 61935-1:2009, modified)

This part of IEC 61935 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. This International Standard applies when the cable assemblies are constructed of cables complying with the IEC 61156 family of standards, and connecting hardware as specified in
IEC 60603-7 family of standards or IEC 61076-3-104 and IEC 61076-3-110. In the case where cables and/or connectors do not comply with these standards, then additional tests may be
required. This standard is organized as follows:
- reference laboratory measurement procedures on cabling topologies are specified in Clause 4. In some cases, these procedures may be used in the field;
- descriptions and requirements for measurements in the field are specified in Clause 5;
- performance requirements for field testers and procedures to verify performance are
specified in Clause 6. NOTE 1 This standard does not include tests that are normally performed on the cables and connectors separately. These tests are described in IEC 61156-1 and IEC 60603-7 or IEC 61076-3-104 and IEC 61076-3-110 respectively.
NOTE 2 Wherever possible, cables and connectors used in cable assemblies, even if they are not described in IEC 61156 or IEC 60603-7, IEC 61076-3-104 or IEC 61076-3-110, are tested separately according to the tests given in the relevant generic specification. In this case, most of the environmental and mechanical tests described in this standard may be omitted. NOTE 3 Users of this standard are advised to consult with applications standards, equipment manufacturers and system integrators to determine the suitability of these requirements for specific networking applications. This standard relates to performance with respect to 100 Ω cabling. For 120 Ω or 150
- cabling, the same principles apply but the measurement system should correspond to the nominal impedance level. Field tester types include certification, qualification and verification. Certification testing is performed for the rigorous needs of commercial/industrial buildings to this standard. Qualification testing is described in IEC 61935-3. Qualification testing determines whether the cabling will support certain network technologies (e.g., 1000BASE-T, 100BASE-TX, IEEE 1394b1)). Qualification testers do not have traceable accuracy to national standards and provide confidence that specific applications will work. Verification testers only verify connectivity. Throughout this document, 4-pair cabling is assumed. The test procedures described in this standard may also be used to evaluate 2-pair balanced cabling. However, 2-pair cabling links that share the same sheath with other links are tested as 4-pair cabling.

Spezifikation für die Prüfung der symmetrischen und koaxialen informationstechnischen Verkabelung - Teil 1: Installierte symmetrische Verkabelung nach EN 50173 und entsprechenden Normen (IEC 61935-1:2009, modifiziert)

Spécification relative aux essais de câblages symétriques et coaxiaux propres aux technologies de l'information - Partie 1: Câblages symétriques installés selon la série de normes EN 50173 (CEI 61935-1:2009, modifiée)

La CEI 61935-1:2010 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/CEI 11801. Les références faites dans la présente norme à l'ISO/CEI 11801 renvoient à l'ISO/CEI 11801 ou à des normes de câblage équivalentes. Elle s'applique quand les câbles équipés sont constitués de câbles conformes à la famille des normes CEI 61156 et de matériel de connexion spécifié dans la famille de normes CEI 60603-7 ou dans la CEI 61076-3-104 et la CEI 61076-3-110. Cette troisième édition annule et remplace la deuxième édition parue en 2005, dont elle constitue une révision technique. Elle diffère de la deuxième édition en ce qu'elle contient des méthodes d'essai pour la diaphonie exogène (étrangère). Elle contient aussi une nouvelle annexe concernant l'incertitude et la variabilité des résultats d'essai sur le terrain. La présente version bilingue, publiée en 2010-07, correspond à la version anglaise.

Preskušanje simetričnega komunikacijskega okabljenja v skladu z ISO/IEC 11801 - 1. del: Vgrajeno okabljenje (IEC 61935-1:2009, spremenjen)

Ta del IEC 61935 določa referenčne postopke meritev za parametre okabljenja in zahteve za natančnost terenskih naprav za preskušanje meritev parametrov okabljenja, določenih v ISO/IEC 11801. Sklicevanja v tem standardu na ISO/IEC 11801 pomenijo ISO/IEC 11801 ali enakovredne standarde okabljenja.  Ta mednarodni standard se uporablja, kadar so kabelske sestave sestavljene iz kablov, ki so skladni z IEC 61156 skupino standardov in povezano strojno opremo, kot je določeno v IEC 60603-7 skupini standardov ali IEC 61076-3-104 in IEC 61076-3-110. V primeru, kjer kabli in/ali konektorji niso v skladu s temi standardi, so lahko potrebni dodatni preskusi. Ta standard je organiziran, kot sledi:
- referenčni postopki laboratorijskih meritev na topologiji kablov so določeni v klavzuli 4. V nekaterih primerih se ti postopki lahko uporabijo na terenu;
-  opisi in zahteve za meritve na terenu so določene v klavzuli 5;
- zahteve delovanja za terenske preskusne naprave in postopke za preverjanje delovanja so določene v Klavzuli 6. OPOMBA 1: Ta standard ne zajema preskusov, ki se običajno izvajajo ločeno na kablih in konektorjih.  Ti preskusi so opisani v IEC 61156-1 in IEC 60603-7 ali IEC 61076-3-104 in IEC 61076-3-110 v tem zaporedju.
OPOMBA 2: Kadarkoli je mogoče, so kabli in konektorji, uporabljeni v kabelskih sestavah, tudi če niso določeni v IEC 61156 ali IEC 60603-7, IEC 61076-3-104 ali 61076-3-110, preskušeni ločeno, glede na preskuse, podane v ustrezni splošni specifikaciji. V tem primeru se lahko večino okoljskih in mehanskih preskusov opisanih v tem standardu opusti. OPOMBA 3: Uporabnikom tega standarda se svetuje, da se posvetujejo s standardi uporabe, proizvajalci opreme in sestavljavci sistema, da določijo ustreznost teh zahtev za posebne uporabe omrežij. Ta standard se nanaša na delovanje v zvezi z 100 Ω okabljenjem. Za 120 Ω ali 150:
- okabljenje, velja isto načelo, vendar naj sistem meritev odgovarja nominalni stopnji impedance. Terenske preskusne naprave zajemajo certifikate, kvalifikacije in potrditve. Certifikacijski preskus tega standarda se izvaja za stroge potrebe gospodarskih/industrijskih stavb. Preskušanje kvalifikacij je določeno v IEC 61935-3. Preskušanje kvalifikacij določa, če bo okabljenje podpiralo določene omrežne tehnologije (t.j. 1000BASE-T, 1000BASE-TX, IEEE 1394b1). Kvalifikacijske preskusne naprave nimajo sledljive natančnosti do državnih standardov in zagotavljajo zaupanje, da bodo določene aplikacije delovale. Preskusne naprave potrditve izključno potrjujejo povezljivost. V celotnem dokumentu je predvideno 4-parno okabljenje. Preskusni postopki, opisani v tem standardu, se lahko uporabljajo tudi za ocenitev 2-parnega uravnoteženega okabljenja. Vendar so 2-parne povezave okabljenja, ki si delijo isti tulec z drugimi povezavami, preskušane kot 4-parna okabljenja.

General Information

• Status: Published
• Publication Date: 03-Feb-2010
• ICS: 33.120.10 - Coaxial cables. Waveguides
• Technical Committee: iTEL - Communication cables
• Current Stage: 6060 - National Implementation/Publication (Adopted Project)
• Start Date: 30-Dec-2009
• Due Date: 06-Mar-2010
• Completion Date: 04-Feb-2010
• Ref Project: EN 61935-1:2009 - Specification for the testing of balanced and coaxial information technology cabling - Part 1: Installed balanced cabling as specified in the standards series EN 50173

Relations

• Revised: SIST EN 61935-1:2006 - Testing of balanced communication cabling in accordance with standards series EN 50173 -- Part 1: Installed cabling
• Effective Date: 08-Oct-2012
• Replaces: SIST EN 61935-1:2006 - Testing of balanced communication cabling in accordance with standards series EN 50173 -- Part 1: Installed cabling
• Effective Date: 29-Jan-2023
• Replaces: SIST EN 61935-1:2006 - Testing of balanced communication cabling in accordance with standards series EN 50173 -- Part 1: Installed cabling
• Effective Date: 07-Jun-2022

Standards Content (Sample)

SLOVENSKI STANDARD
SIST EN 61935-1:2010
01-marec-2010
1DGRPHãþD
SIST EN 61935-1:2006
3UHVNXãDQMHVLPHWULþQHJDNRPXQLNDFLMVNHJDRNDEOMHQMDYVNODGX],62,(&
GHO9JUDMHQRRNDEOMHQMH,(&VSUHPHQMHQ
Testing of balanced communication cabling in accordance with ISO/IEC 11801 - Part 1:
Installed cabling (IEC 61935-1:2009, modified)
Spezifikation für die Prüfung der symmetrischen und koaxialen informationstechnischen
Verkabelung - Teil 1: Installierte symmetrische Verkabelung nach EN 50173 und
entsprechenden Normen (IEC 61935-1:2009, modifiziert)
Spécification relative aux essais de câblages symétriques et coaxiaux propres aux
technologies de l'information - Partie 1: Câblages symétriques installés selon la série de
normes EN 50173 (CEI 61935-1:2009, modifiée)
Ta slovenski standard je istoveten z: EN 61935-1:2009
ICS:
33.120.10 Koaksialni kabli. Valovodi Coaxial cables. Waveguides
SIST EN 61935-1:2010 en
2003-01.Slovenski inštitut za standardizacijo. Razmnoževanje celote ali delov tega standarda ni dovoljeno.

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SIST EN 61935-1:2010

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SIST EN 61935-1:2010

EUROPEAN STANDARD
EN 61935-1

NORME EUROPÉENNE
December 2009
EUROPÄISCHE NORM

ICS 33.120.10 Supersedes EN 61935-1:2005


English version


Specification for the testing of balanced
and coaxial information technology cabling -
Part 1: Installed balanced cabling as specified
in the standards series EN 50173
(IEC 61935-1:2009, modified)


Spezifikation für die Prüfung
Spécification relative aux essais
der symmetrischen und koaxialen
de câblages symétriques et coaxiaux
informationstechnischen Verkabelung -
propres aux technologies de l'information -
Teil 1: Installierte symmetrische
Partie 1: Câblages symétriques installés
Verkabelung nach EN 50173
selon la série de normes EN 50173
und entsprechenden Normen
(CEI 61935-1:2009, modifiée)
(IEC 61935-1:2009, modifiziert)




This European Standard was approved by CENELEC on 2009-10-01. 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, Bulgaria, 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

Central Secretariat: Avenue Marnix 17, B - 1000 Brussels


© 2009 CENELEC - All rights of exploitation in any form and by any means reserved worldwide for CENELEC members.
Ref. No. EN 61935-1:2009 E

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SIST EN 61935-1:2010
EN 61935-1:2009 - 2 -
Foreword
The text of document 46/323/FDIS, future edition 3 of IEC 61935-1, 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 61935-1 on
2009-10-01 with common modifications prepared by the German national committee to have the standard
refer to the relevant European Standards.
This European Standard supersedes EN 61935-1:2005.
This new edition includes test methods for exogenous (alien) crosstalk. It also includes a new annex for
uncertainty and variability of field test results.
The following dates were fixed:
– latest date by which the EN has to be implemented
at national level by publication of an identical
(dop) 2010-07-01
national standard or by endorsement
– latest date by which the national standards conflicting
(dow) 2012-10-01
with the EN have to be withdrawn
Annex ZA has been added by CENELEC.
__________

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SIST EN 61935-1:2010
- 3 - EN 61935-1:2009
Endorsement notice
The text of the International Standard IEC 61935-1:2009 was approved by CENELEC as a European
Standard with agreed common modifications as given below.
COMMON MODIFICATIONS
Title page
Replace "ISO/IEC 11801 and related standards" by "the standards series EN 50173".
General
Replace "ISO/IEC 11801" and "ISO/IEC 11801 (or equivalent)" by "EN 50173-1" in Subclauses 3.2, 4.2.5
(twice), 4.13.4.3, 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, 5.4.7.2, 5.4.7.3,
5.4.8.1, 5.5.5 and 6.2
Replace all other occurrences of "ISO/IEC 11801" and "ISO/IEC 11801 (or equivalent)" by "series
EN 50173", i.e. in the introduction and in (Sub)Clauses 3, 3.1, and 6.11.1.
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 series EN 50173. This
standard does not apply to EN 50173-4.
Clause 2, Normative references
Replace "ISO/IEC 11801" by:
EN 50173, series, Information technology - Generic cabling systems
Replace ISO/IEC/TR 14763-2 by:
EN 50174-1, Information technology - Cabling installation - Part 1: Installation specification and quality
assurance
Subclause 5.4.8.1, Selection of disturbed links
Replace “ISO/IEC/TR 14763-2” by “EN 50174-1”.
Subclause 5.1, General
Replace paragraphs 1 to 3 by:
This clause applies to field test specifications for post-installation performance measurements of installed
cabling designed in accordance with series EN 50173.
The information contained in this clause uses the links defined in series EN 50173 and specifies
parameters for field testers, test methods and interpretations of test results, leading to a practical solution
to the issues related to field testing. Classes of twisted pair cabling links referred to herein correspond
with those described in EN 50173-1.

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SIST EN 61935-1:2010
EN 61935-1:2009 - 4 -
Field test equipment is classified by performance level. Currently levels I, II, IIE, III, IIIE and IV are used in
the industry. This clause specifies requirements for field test equipment used to certify class D, E, E , F
A
and F cabling as defined in EN 50173-1.
A
Subclause 5.5.8, Administration system applicability
Replace “ISO/IEC 14763-1” by “EN 50174-1”.
Bibliography
Add the following note under IEC 61935-3:
NOTE Harmonized as EN 61935-3:2009.
Delete reference to ISO/IEC 14763-1.
___________

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SIST EN 61935-1:2010
- 5 - EN 61935-1:2009
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

– – Information technology - Generic cabling EN 50173 Series
systems


1)
– – Information technology - Cabling installation - EN 50174-1 –
Part 1: Installation specification and quality
assurance


1)
– – Communication cables - Specifications for EN 50289-1-15 –
test methods -
Part 1-15: Electromagnetic performance -
Coupling attenuation of links and channels
(Laboratory conditions)


1)
IEC 60169-22 – Radio-frequency connectors - – –
Part 22: R.F. two-pole bayonet coupled
connectors for use with shielded balanced
cables having twin inner conductors (Type
BNO)


1) 2)
IEC 60512-25-9 – Connectors for electronic equipment - Tests EN 60512-25-9 2008
and measurements - Part 25-9: Signal
integrity tests - Test 25i: Alien crosstalk


1)
IEC 60603-7 – Connectors for electronic equipment - EN 60603-7 2009
Part 7: Detail specification for 8-way,
unshielded, free and fixed connectors


IEC 60603-7-X Series Connectors for electronic equipment - EN 60603-7-X Series
Part 7-X: Detail specification for 8-way,
shielded free and fixed connectors


1) 3)
IEC 60603-7-4 – Connectors for electronic equipment - EN 60603-7-4 200X
Part 7-4: Detail specification for 8-way,
unshielded, free and fixed connectors, for data
transmissions with frequencies up to 250 MHz


1)
IEC 60603-7-5 – Connectors for electronic equipment - EN 60603-7-5 2009
Part 7-5: Detail specification for 8-way,
shielded, free and fixed connectors, for data
transmissions with frequencies up to 250 MHz



1)
Undated reference.
2)
Valid edition at date of issue.
3)
To be published

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SIST EN 61935-1:2010
EN 61935-1:2009 - 6 -
Publication Year Title EN/HD Year

1) 2)
IEC 61076-3-104 – Connectors for electronic equipment - EN 61076-3-104 2006
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


1) 2)
IEC 61076-3-110 – Connectors for electronic equipment - EN 61076-3-110 2008
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


1)
IEC 61156-1 – Multicore and symmetrical pair/quad cables – –
for digital communications -
Part 1: Generic specification


1)
IEC 61156-5 – Multicore and symmetrical pair/quad cables – –
for digital communications -
Part 5: Symmetrical pair/quad cables with
transmission characteristics up to 1 000 MHz -
Horizontal floor wiring - Sectional specification


1)
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


1)
IEC 61156-7 – Multicore and symmetrical pair/quad cables – –
for digital communications -
Part 7: Symmetrical pair cables with
transmission characteristics up to 1 200 MHz -
Sectional specification for digital and analog
communication cables


1)
IEC 61156-8 – Multicore and symmetrical pair/quad cables – –
for digital communications -
Part 8: Symmetrical pair/quad cables with
transmission characteristics up to 1 200 MHz -
Work area wiring - Sectional specification


ITU-T 1996 Transmission aspects of unbalance about – –
Recommendation earth
G.117


ITU-T 1999 Measuring arrangements to assess the – –
Recommendation degree of unbalance about earth
O.9

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SIST EN 61935-1:2010
IEC 61935-1
®
Edition 3.0 2009-07
INTERNATIONAL
STANDARD


Specification for the testing of balanced and coaxial information technology
cabling –
Part 1: Installed balanced cabling as specified in ISO/IEC 11801 and related
standards


INTERNATIONAL
ELECTROTECHNICAL
COMMISSION
PRICE CODE
XE
ICS 33.120.10 ISBN 2-8318-1051-8
® Registered trademark of the International Electrotechnical Commission

---------------------- Page: 9 ----------------------

SIST EN 61935-1:2010
– 2 – 61935-1 © IEC:2009(E)
CONTENTS
FOREWORD.8
INTRODUCTION.10
1 Scope.11
2 Normative references .12
3 Terms and definitions .13
4 Reference measurement procedures for electrical properties .15
4.1 General .15
4.2 Test equipment considerations .15
4.2.1 General .15
4.2.2 Network analyzer test requirements.15
4.2.3 Termination of conductor pairs .16
4.2.4 Reference loads for calibration .17
4.2.5 Test configurations .17
4.2.6 Coaxial cables and test leads for network analyzers .18
4.2.7 Balun requirements .19
4.2.8 Network analyzer measurement precautions.20
4.2.9 Data reporting and accuracy.21
4.3 DC loop resistance .21
4.3.1 Objective .21
4.3.2 Test method .22
4.3.3 Test equipment and set-up .22
4.3.4 Procedure.22
4.3.5 Test report.22
4.3.6 Uncertainty.23
4.4 Direct current (d.c.) resistance unbalance .23
4.4.1 Objective .23
4.4.2 Test method .23
4.4.3 Test equipment and set-up .23
4.4.4 Procedure.23
4.4.5 Test report.24
4.4.6 Uncertainty.24
4.5 Insertion loss.24
4.5.1 Objective .24
4.5.2 Test method .24
4.5.3 Test equipment and set-up .25
4.5.4 Procedure.25
4.5.5 Test report.26
4.5.6 Temperature correction .26
4.5.7 Uncertainty.26
4.6 Propagation delay and delay skew .26
4.6.1 Objective .26
4.6.2 Test method .26
4.6.3 Test equipment and set-up .27
4.6.4 Procedure.27
4.6.5 Test report.27
4.6.6 Uncertainty.27

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SIST EN 61935-1:2010
61935-1 © IEC:2009(E) – 3 –
4.7 Near-end cross-talk (NEXT) and power sum NEXT.28
4.7.1 Objective .28
4.7.2 Test method .28
4.7.3 Test equipment and set-up .28
4.7.4 Procedure.28
4.7.5 Test report.29
4.7.6 Uncertainty.30
4.8 Attenuation to crosstalk ratio, near end (ACR-N) and power sum ACR-N.30
4.8.1 Objective .30
4.8.2 Test method .30
4.8.3 Test equipment and set-up .30
4.8.4 Procedure.30
4.8.5 Test report.30
4.8.6 Uncertainty.30
4.9 Far-end cross-talk (FEXT) and power sum FEXT.31
4.9.1 Objective .31
4.9.2 Test method .31
4.9.3 Test equipment and set-up .31
4.9.4 Procedure.32
4.9.5 Test report.32
4.9.6 Uncertainty of FEXT measurements .32
4.10 Equal level far end crosstalk (ELFEXT) and attenuation to crosstalk ratio, far
end (ACR-F).32
4.10.1 Objective .32
4.10.2 Calculation .33
4.10.3 Test report.33
4.10.4 Uncertainty.33
4.11 Return loss.33
4.11.1 Objective .33
4.11.2 Test method .33
4.11.3 Test equipment and set-up .34
4.11.4 Procedure.34
4.11.5 Test report.35
4.11.6 Uncertainty.35
4.12 PS alien near end crosstalk (PS ANEXT – Exogenous crosstalk).35
4.12.1 Objective .35
4.12.2 Test method .35
4.12.3 Test equipment and set-up .35
4.12.4 Procedure.36
4.13 PS attenuation to alien crosstalk ratio, far end crosstalk (PS AACR-F –
Exogenous crosstalk) .38
4.13.1 Objective .38
4.13.2 Test method .38
4.13.3 Test equipment and set-up .38
4.13.4 Procedure.40
4.14 Unbalance attenuation, near end.42
4.14.1 Objective .42
4.14.2 Test method .42
4.14.3 Test equipment and set-up .42

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SIST EN 61935-1:2010
– 4 – 61935-1 © IEC:2009(E)
4.14.4 Procedure.43
4.14.5 Test report.45
4.14.6 Uncertainty.46
4.15 Unbalance attenuation, far end.46
4.15.1 Objective .46
4.15.2 Test method .46
4.15.3 Test equipment and set-up .46
4.15.4 Procedure.47
4.15.5 Test report.48
4.15.6 Uncertainty.48
4.16 Coupling attenuation .48
5 Field test measurement requirements for electrical properties .48
5.1 General .48
5.2 Cabling configurations tested .49
5.3 Field test parameters.49
5.3.1 General .49
5.3.2 Inspection of workmanship and connectivity testing .50
5.3.3 Propagation delay and delay skew.51
5.3.4 Length .51
5.3.5 Insertion loss.52
5.3.6 NEXT, power sum NEXT.52
5.3.7 ACR-N and power sum ACR-N .53
5.3.8 ELFEXT, power sum ELFEXT, ACR-F, power sum ACR-F .54
5.3.9 Return loss .55
5.3.10 Direct current (d.c.) loop resistance .55
5.4 Power sum alien crosstalk .55
5.4.1 Objective .55
5.4.2 Test method .56
5.4.3 Test equipment and set-up .56
5.4.4 Measuring ANEXT loss.56
5.4.5 Measuring AFEXT loss .57
5.4.6 Procedure.57
5.4.7 Calculation of PS ANEXT and PS AACR-F from measured data .57
5.4.8 Selection of test ports.60
5.4.9 Test report.62
5.4.10 Uncertainty of PS alien crosstalk measurements .62
5.5 Data reporting and accuracy.62
5.5.1 General .62
5.5.2 Detailed results .64
5.5.3 Summary results.64
5.5.4 Reporting requirements for power sum alien crosstalk .68
5.5.5 General .68
5.5.6 Consistency checks for field testers.68
5.5.7 Evaluation of consistency tests.69
5.5.8 Administration system applicability .69
5.5.9 Test equipment adapter cords for link testing.69
5.5.10 User cords and channel testing.69
6 Field tester measurement accuracy requirements .69
6.1 General .69

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SIST EN 61935-1:2010
61935-1 © IEC:2009(E) – 5 –
6.2 Measurement accuracy specifications common to level IIE, level III, level
IIIE, and level IV field testers.73
6.3 Accuracy performance requirements for level IIE field testers.73
6.4 Accuracy performance requirements for level III field testers .75
6.5 Accuracy performance requirements for level IIIE field testers.77
6.6 Accuracy performance requirements for level IV field testers.79
6.7 Accuracy performance requirements for level IV field testers over 600 MHz .81
6.8 Field tester requirements applicable to alien crosstalk measurements .81
6.9 Procedures for determining field tester parameters .81
6.9.1 General .81
6.9.2 Outpu
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