EN IEC 61280-4-1:2019

SLOVENSKI STANDARD
01-oktober-2019
Nadomešča:
SIST EN 61280-4-1:2010
Postopki preskušanja optičnega komunikacijskega podsistema - 4-1. del: Vgrajene
žične oblike - Meritev mnogorodovnega slabljenja (IEC 61280-4-1:2019)
Fibre-optic communication subsystem test procedures - Part 4-1: Installed cable plant -
Multimode attenuation measurement (IEC 61280-4-1:2019)
Prüfverfahren für Lichtwellenleiter-Kommunikationsuntersysteme - Teil 4-1:
Lichtwellenleiter-Kabelanlagen - Mehrmoden-Dämpfungsmessungen (IEC 61280-4-
1:2019)
Procédures d'essai des sous-systèmes de télécommunication à fibres optiques - Partie 4
-1: Installation câblée - Mesure de l'affaiblissement en multimodal (IEC 61280-4-1:2019)
Ta slovenski standard je istoveten z: EN IEC 61280-4-1:2019
ICS:
33.180.01 Sistemi z optičnimi vlakni na Fibre optic systems in
splošno general
2003-01.Slovenski inštitut za standardizacijo. Razmnoževanje celote ali delov tega standarda ni dovoljeno.

EUROPEAN STANDARD EN IEC 61280-4-1

NORME EUROPÉENNE
EUROPÄISCHE NORM
August 2019
ICS 33.180.01 Supersedes EN 61280-4-1:2009 and all of its
amendments and corrigenda (if any)
English Version
Fibre-optic communication subsystem test procedures - Part 4-1:
Installed cabling plant - Multimode attenuation measurement
(IEC 61280-4-1:2019)
Procédures d'essai des sous-systèmes de Prüfverfahren für Lichtwellenleiter-
télécommunication fibroniques - Partie 4-1: Installation Kommunikationsuntersysteme - Teil 4-1: Lichtwellenleiter-
câblée - Mesure de l'affaiblissement en multimodal Kabelanlagen - Mehrmoden-Dämpfungsmessungen
(IEC 61280-4-1:2019) (IEC 61280-4-1:2019)
This European Standard was approved by CENELEC on 2019-06-26. 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 IEC 61280-4-1:2019 E

European foreword
The text of document 86C/1575/FDIS, future edition 3 of IEC 61280-4-1, prepared by SC 86C "Fibre
optic systems and active devices" of IEC/TC 86 "Fibre optics" was submitted to the IEC-CENELEC
parallel vote and approved by CENELEC as EN IEC 61280-4-1:2019.
The following dates are fixed:
• latest date by which the document has to be implemented at national (dop) 2020-03-26
level by publication of an identical national standard or by endorsement
• latest date by which the national standards conflicting with the (dow) 2022-06-26
document have to be withdrawn
This document supersedes EN 61280-4-1:2009 and all of its amendments and corrigenda (if any)
This edition constitutes a technical revision including the following significant technical changes with
respect to the previous edition:
a) changes to Annex F on encircled flux to harmonise with IEC TR 62614-2, but keeping the encircled
flux limits defined in Tables F.2 to F.5 unchanged;
b) addition of an equipment cord method in Annex D;
c) inclusion of testing bend insensitive multimode optical fibre;
d) updates to measurement uncertainty;
e) definition of additional cabling configurations;
f) changes to Table 5 on spectral requirements.
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.
Endorsement notice
The text of the International Standard IEC 61280-4-1:2019 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 60793-1-40 NOTE Harmonized as EN IEC 60793-1-40
IEC 60793-2 NOTE Harmonized as EN 60793-2
IEC 60793-2-10 NOTE Harmonized as EN 60793-2-10
IEC 60793-2-50 NOTE Harmonized as EN IEC 60793-2-50
IEC 60794-2-21 NOTE Harmonized as EN IEC 60794-2-21
IEC 61300-3-6 NOTE Harmonized as EN 61300-3-6
IEC 61300-3-45 NOTE Harmonized as EN 61300-3-45
IEC 61745 NOTE Harmonized as EN 61745
IEC 61755-6-2 NOTE Harmonized as EN IEC 61755-6-2
IEC 62664-1-1 NOTE Harmonized as EN 62664-1-1
IEC 62614:2010 NOTE Harmonized as EN 62614:2010 (not modified)
Annex ZA
(normative)
Normative references to international publications
with their corresponding European publications
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.
NOTE 1  Where an International Publication has been modified by common modifications, indicated by (mod), the relevant
EN/HD applies.
NOTE 2  Up-to-date information on the latest versions of the European Standards listed in this annex is available here:
www.cenelec.eu.
Publication Year Title EN/HD Year
IEC 60825-2 -  Safety of laser products - Part 2: Safety of EN 60825-2 -
optical fibre communication systems
(OFCS)
IEC 61280-1-3 -  Fibre optic communication subsystem test EN 61280-1-3 -
procedures - Part 1-3: General
communication subsystems - Central
wavelength and spectral width
measurement
IEC 61280-1-4 -  Fibre optic communication subsystem test EN 61280-1-4 -
procedures - Part 1-4: General
communication subsystems - Light source
encircled flux measurement method
IEC 61300-3-35 -  Fibre optic interconnecting devices and EN 61300-3-35 -
passive components - Basic test and
measurement procedures - Part 3-35:
Examinations and measurements - Visual
inspection of fibre optic connectors and
fibre-stub transceivers
IEC 61315 -  Calibration of fibre-optic power meters EN IEC 61315 -
IEC 61746-2 -  Calibration of optical time-domain EN 61746-2 -
reflectometers (OTDR) - Part 2: OTDR for
multimode fibres
IEC 61280-4-1 ®
Edition 3.0 2019-05
INTERNATIONAL
STANDARD
NORME
INTERNATIONALE
colour
inside
Fibre-optic communication subsystem test procedures –

Part 4-1: Installed cabling plant – Multimode attenuation measurement

Procédures d'essai des sous-systèmes de télécommunication fibroniques –

Partie 4-1: Installation câblée – Mesure de l'affaiblissement en multimodal

INTERNATIONAL
ELECTROTECHNICAL
COMMISSION
COMMISSION
ELECTROTECHNIQUE
INTERNATIONALE
ICS 33.180.01 ISBN 978-2-8322-6893-3

– 2 – IEC 61280-4-1:2019 © IEC 2019
CONTENTS
FOREWORD . 7
1 Scope . 9
2 Normative references . 9
3 Terms, definitions, graphical symbols and abbreviated terms. 9
3.1 Terms and definitions . 10
3.2 Graphical symbols . 12
3.3 Abbreviated terms . 14
4 Test methods . 14
4.1 General . 14
4.2 Cabling configurations and applicable test methods . 15
5 Overview of uncertainties . 17
5.1 General . 17
5.2 Sources of significant uncertainties . 17
5.3 Consideration of the PM . 18
5.4 Consideration of test cord connector grade . 18
5.5 Typical uncertainty values . 18
6 Apparatus . 19
6.1 General . 19
6.2 Light source . 19
6.2.1 Stability . 19
6.2.2 Spectral characteristics (LSPM measurement) . 19
6.3 Launch cord . 20
6.4 Receive or tail cord . 20
6.5 Substitution cord . 21
6.6 Power meter – LSPM methods only. 21
6.7 OTDR apparatus . 21
6.8 Connector end face cleaning and inspection equipment . 22
6.9 Adapters . 22
7 Procedures . 22
7.1 General . 22
7.2 Common procedures . 22
7.2.1 Care of the test cords . 22
7.2.2 Make reference measurements (LSPM methods only). 22
7.2.3 Inspect and clean the ends of the optical fibres in the cabling . 22
7.2.4 Make the measurements . 23
7.2.5 Make the calculations . 23
7.2.6 Duplex and bi-directional testing . 23
7.3 Calibration . 23
7.4 Safety . 23
8 Calculations . 23
9 Documentation . 23
9.1 Information for each test . 23
9.2 Information to be available . 24
Annex A (normative) One-cord method . 25
A.1 Applicability of test method . 25

IEC 61280-4-1:2019 © IEC 2019 – 3 –
A.2 Apparatus . 25
A.3 Procedure . 25
A.4 Calculation . 26
A.5 Components of reported attenuation .
...