EN 50697:2019

SLOVENSKI STANDARD
01-september-2019
Informacijska tehnologija - Merjenje povezav od konca do konca (E2E)
Information technology - Measurement of end-to-end (E2E) links
Informationstechnik – Messung von Ende-zu-Ende-Verbindungsstrecken
Technologies de l’information - Mesurage des liaisons de bout en bout (E2E)
Ta slovenski standard je istoveten z: EN 50697:2019
ICS:
35.110 Omreževanje Networking
2003-01.Slovenski inštitut za standardizacijo. Razmnoževanje celote ali delov tega standarda ni dovoljeno.

EUROPEAN STANDARD EN 50697
NORME EUROPÉENNE
EUROPÄISCHE NORM
July 2019
ICS 33.100.10; 35.110
English Version
Information technology - Measurement of end-to-end (E2E) links
Technologies de l'information - Mesurage des liaisons de Informationstechnik - Messung von Ende-zu-Ende-
bout en bout (E2E) Verbindungsstrecken
This European Standard was approved by CENELEC on 2019-05-08. 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 CEN-CENELEC
Management Centre 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 CEN-CENELEC Management Centre 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, Republic of North Macedonia, Romania, Serbia, Slovakia, Slovenia, Spain, Sweden, Switzerland,
Turkey and the United Kingdom.

European Committee for Electrotechnical Standardization
Comité Européen de Normalisation Electrotechnique
Europäisches Komitee für Elektrotechnische Normung
CEN-CENELEC Management Centre: Rue de la Science 23, B-1040 Brussels
© 2019 CENELEC All rights of exploitation in any form and by any means reserved worldwide for CENELEC Members.
Ref. No. EN 50697:2019 E
Contents
European foreword .3
Introduction .4
1 Scope .5
2 Normative references .5
3 Terms, definitions and abbreviations .5
3.1 Terms and definitions .5
3.2 Abbreviations .6
4 Conformance .6
5 Configuration and limits of performance of E2E link .6
6 Test configuration of E2E link .6
7 E2E link testing .7
8 Laboratory testing of E2E link .7
9 Field testing of E2E link .8
9.1 Visual inspection .8
9.2 Requirements of field test equipment .8
9.3 Field test measurement parameters .8
10 Test head requirements .9
10.1 General .9
10.2 Test head requirements according to the EN 60603-7 series .9
10.3 Test head requirements of EN 61076-2-101 .9
10.4 Test head requirements of EN 61076-2-109 .9
Annex A (normative) Additional requirements for test head designs . 10
A.1 General . 10
A.2 Outline of additional NEXT requirements . 10
A.3 Additional test head requirements . 10
A.3.1 Category 5 test head requirements . 10
A.3.2 Category 6 test head requirements . 11
Bibliography . 13

European foreword
This document (EN 50697:2019) has been prepared by CLC/TC 215 “Electrotechnical aspects of
telecommunication equipment”, based upon ISO/IEC 14763-4:2018 “Information technology –
Implementation and operation of customer premises cabling – Part 4: Measurement of end-to-end (E2E)
links”.
The following dates were fixed:
• latest date by which this document has to be (dop) 2020–05–08
implemented at national level by publication of
an identical national standard or by
endorsement
• latest date by which the national standards (dow) 2022–05–08
conflicting with this document have to be
withdrawn
Attention is drawn to the possibility that some of the elements of this document may be the subject of patent
rights. CENELEC shall not be held responsible for identifying any or all such patent rights.
Introduction
Balanced cabling is constructed for connecting equipment using free connectors. It is known that field
termination in all parts of the channel has an influence on the channel performance.
Poor termination can cause problems in the channel performance and can affect reliable data transmission.
Until now, a verification of the field terminated cabling was done by measurement of the channel
performance of Channel Class D or E according to EN 50173-1. The measurement of Channel Class D or E
excludes the connections at the end of the cable. The measurement of Channel Class D or E does not
identify the influence to the performance caused by bad terminations of the connections at the end.
The measurement of performance of end-to-end (E2E) link includes the termination on both ends of
balanced cabling.
This document describes the measurement of E2E links of two- and four-pair balanced cabling of 100 MHz
of Class D and 250 MHz of Class E using laboratory and field tester measurement procedures.
The performance of E2E links is described in ISO/IEC TR 11801-9902.
This European Standard is one of a number of documents prepared in support of European Standards and
Technical Reports on information and communication technology cabling produced by CLC/TC 215.
1 Scope
This document specifies the measurement at frequencies of E2E links of two- and four-pair balanced cabling
of 100 MHz of Class D and 250 MHz of Class E including free connectors which terminate two and four pairs
in both field and laboratory conditions.
The specifications for E2E links are described in ISO/IEC TR 11801-9902.
This document specifies laboratory and field measurement procedures. The requirements for accuracy to
measure cabling parameters identified in ISO/IEC TR 11801-9902 are provided in EN 61935-1 and
EN 61935-2.
2 Normative references
The following documents are referred to in the text in such a way that some or all of their content constitutes
requirements 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.
EN 50173-1, Information technology – Generic cabling systems – Part 1: General requirements
EN 50174-1, Information technology — Cabling installation — Part 1: Installation specification and quality
assurance
EN 50174-2, Information technology — Cabling installation — Part 2: Installation planning and practices
inside buildings
EN 60512-29-100, Connectors for electronic equipment - Tests and measurements - Part 29-100: Signal
integrity tests up to 500 MHz on M12 style connectors - Tests 29a to 29g (IEC 60512-29-100)
EN 61918, Industrial communication networks – Installation of communication networks in industrial
premises (IEC 61918)
EN 61935-1, 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)
EN 61935-2, 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)
ISO/IEC/TR 11801-9902:2017, Information technology — Generic cabling for customer premises —
Part 9902: Specifications for End-to-end link configurations
3 Terms, definitions and abbreviations
3.1 Terms and definitions
For the purposes of this document, the terms and definitions given in EN 50173-1 and the following apply.
ISO and IEC maintain terminological databases for use in standardization at the following addresses:
• IEC Electropedia: available at http://www.electropedia.org/
• ISO Online browsing platform: available at http://www.iso.org/obp
3.1.1
end-to-end link
end-to-end transmission path formed by structured cabling based on passive components including the
portion of the end connection that is attached to the end equipment
3.2 Abbreviations
For the purposes of this document, the abbreviations of EN 50173-1 and the following apply.
E2E end-to-end
N/A not applicable
4 Conformance
For a measurement of E2E link to conform to this document, the following applies:
a) The requirements of the applicable generic cabling design standards shall be applied;
b) The configuration and structure shall conform to the requirements outlined in Clause 5;
c) The test configuration of E2E link shall meet the requirements in Clause 6 when subjected to the test of
E2E link;
d) E2E link testing shall be undertaken according to Clause 7. The laboratory testing is specified in
Clause 8 and the field testing is specified in Clause 9;
e) The test head shall meet the requirements of Clause 10.
This document shall apply to measurement methods of E2E link up to 100 MHz of Class D and up to
250 MHz of Class E of balanced cabling that includes the connections located at both ends.
5 Configuration and limits of performance of E2E link
E2E link measurement shall meet the following requirements:
a) the configurations and structure shall conform to the specifications outlined in ISO/IEC TR 11801-9902;
b) the test limits shall be in accordance with the outlined maximum limits described in
ISO/IEC TR 11801-9902;
c) the use of compatible cabling components shall be in accordance with the requirements of EN 50173-1;
d) if present, screens shall be handled as specified in EN 50174-2;
e) the installation shall be performed in accordance with EN 50174-1, EN 50174-2 and EN 61918;
f) an E2E link shall meet the transmission limits of ISO/IEC TR 11801-9902 and, with its designated
Category and with appropriate test head as described in Annex A, the transmission requirements of all
lower Categories.
E2E link testing should be used to provide assurance of installed cabling terminated at both ends in
accordance with EN 60603-7 (all parts), EN 61076-3-106, EN 61076-3-117, EN 61076-2-101 or
EN 61076-2-109.
6 Test configuration of E2E link
The E2E link includes the end connection at both ends.
Reference planes and configuration of E2E link measurement are shown in Figure 1.
Figure 1 — Reference planes and configuration of E2E link
7 E2E link testing
Performance testing can be undertaken either in a laboratory or in the field after installation. This testing is
independent from any requirements for acceptance testing contained within an installation specification, as
required for balanced cabling by EN 50174-1.
There are three kinds of conformance testing:
a) Laboratory testing: This testing is performed on a sample of cabling in a laboratory where an
assessment against the limits of ISO/IEC TR 11801-9902 is required.
b) Installed cabling in the field: This testing is performed on installed cabling in the field where an
assessment against the conformance criteria of ISO/IEC TR 11801-9902 is required.
c) Production testing: This testing is performed in a production environment where an E2E-link assessment
against the limits of ISO/IEC TR 11801-9902 is required
...