EN 61753-021-3:2013

SLOVENSKI STANDARD
01-maj-2013
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Fibre optic interconnecting devices and passive components - Performance standard -
Part 021-3: Single-mode fibre optic connectors for category U - Uncontrolled
environment (IEC 61753-021-3:2012)
Lichtwellenleiter - Verbindungselemente und passive Bauteile - Betriebsverhalten - Teil
021-3: Lichtwellenleiter-Steckverbinder für Einmodenfasern für die Kategorie U -
Unkontrollierte Umgebung (IEC 61753-021-3:2012)
Dispositifs d’interconnexion et composants passives à fibres optiques - Norme de
performance - Partie 021-3: Connecteurs à fibres optiques unimodales pour la catégorie
U - Environnement non contrôlé (CEI 61753-021-3:2012)
Ta slovenski standard je istoveten z: EN 61753-021-3:2013
ICS:
33.180.20 3RYH]RYDOQHQDSUDYH]D Fibre optic interconnecting
RSWLþQDYODNQD devices
2003-01.Slovenski inštitut za standardizacijo. Razmnoževanje celote ali delov tega standarda ni dovoljeno.

EUROPEAN STANDARD
EN 61753-021-3
NORME EUROPÉENNE
March 2013
EUROPÄISCHE NORM
ICS 33.180.20
English version
Fibre optic interconnecting devices and passive components -
Performance standard -
Part 021-3: Single-mode fibre optic connectors for category U -
Uncontrolled environment
(IEC 61753-021-3:2012)
Dispositifs d’interconnexion et Lichtwellenleiter - Verbindungselemente
composants passives à fibres optiques - und passive Bauteile -
Norme de performance - Betriebsverhalten -
Partie 021-3: Connecteurs à fibres Teil 021-3: Lichtwellenleiter-
optiques unimodales pour la catégorie U - Steckverbinder für Einmodenfasern für die
Environnement non contrôlé Kategorie U - Unkontrollierte Umgebung
(CEI 61753-021-3:2012) (IEC 61753-021-3:2012)

This European Standard was approved by CENELEC on 2013-01-09. 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, Former Yugoslav Republic of Macedonia, France, Germany,
Greece, Hungary, Iceland, Ireland, Italy, Latvia, Lithuania, Luxembourg, Malta, the Netherlands, Norway, Poland,
Portugal, Romania, Slovakia, Slovenia, Spain, Sweden, Switzerland, Turkey 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

© 2013 CENELEC - All rights of exploitation in any form and by any means reserved worldwide for CENELEC members.
Ref. No. EN 61753-021-3:2013 E

Foreword
The text of document 86B/3495/FDIS, future edition 1 of IEC 61753-021-3, prepared by SC 86B, "Fibre
optic interconnecting devices and passive components", of IEC TC 86, "Fibre optics" was submitted to the
IEC-CENELEC parallel vote and approved by CENELEC as EN 61753-021-3:2013.
The following dates are fixed:
• latest date by which the document (dop) 2013-10-09
has to be implemented at national
level by publication of an identical
national
standard or by endorsement
• latest date by which the national (dow) 2016-01-09
standards conflicting with the

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 [and/or CEN] shall not be held responsible for identifying any or all such patent
rights.
Endorsement notice
The text of the International Standard IEC 61753-021-3:2012 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 61300-2-19 NOTE  Harmonized as EN 61300-2-19.
IEC 61755-3 series NOTE  Harmonized in EN 61755-3 series.

- 3 - EN 61753-021-3:2013
Annex ZA
(normative)
Normative references to international publications
with their corresponding European publications

The following documents, in whole or in part, are normatively referenced in this document and are
indispensable for its application. 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 60793-2-50 2008 Optical fibres - EN 60793-2-50 2008
Part 2-50: Product specifications - Sectional
specification for class B single-mode fibres

IEC 61300-2-1 - Fibre optic interconnecting devices and EN 61300-2-1 -
passive components - Basic test and
measurement procedures -
Part 2-1: Tests - Vibration (sinusoidal)

IEC 61300-2-2 - Fibre optic interconnecting devices and EN 61300-2-2 -
passive components - Basic test and
measurement procedures -
Part 2-2: Tests - Mating durability

IEC 61300-2-4 - Fibre optic interconnecting devices and EN 61300-2-4 -
passive components - Basic test and
measurement procedures -
Part 2-4: Tests - Fibre/cable retention

IEC 61300-2-6 - Fibre optic interconnecting devices and EN 61300-2-6 -
passive components - Basic test and
measurement procedures -
Part 2-6: Tests - Tensile strength of coupling
mechanism
IEC 61300-2-12 2009 Fibre optic interconnecting devices and EN 61300-2-12 2009
+ corr. June 2011 passive components - Basic test and
measurement procedures -
Part 2-12: Tests - Impact
IEC 61300-2-17 - Fibre optic interconnecting devices and EN 61300-2-17 -
passive components - Basic test and
measurement procedures -
Part 2-17: Tests - Cold
IEC 61300-2-18 - Fibre optic interconnecting devices and EN 61300-2-18 -
passive components - Basic test and
measurement procedures -
Part 2-18: Tests - Dry heat - High temperature
endurance
IEC 61300-2-22 - Fibre optic interconnecting devices and EN 61300-2-22 -
passive components - Basic test and
measurement procedures -
Part 2-22: Tests - Change of temperature

IEC 61300-2-42 - Fibre optic interconnecting devices and EN 61300-2-42 -
passive components - Basic test and
measurement procedures -
Part 2-42: Tests - Static side load for
connectors
Publication Year Title EN/HD Year

IEC 61300-2-44 - Fibre optic interconnecting devices and EN 61300-2-44 -
passive components - Basic test and
measurement procedures -
Part 2-44: Tests - Flexing of the strain relief of
fibre optic devices
IEC 61300-3-3 - Fibre optic interconnecting devices and EN 61300-3-3 -
passive components - Basic test and
measurement procedures -
Part 3-3: Examinations and measurements -
Active monitoring of changes in attenuation
and return loss
IEC 61300-3-4 - Fibre optic interconnecting devices and EN 61300-3-4 -
passive components - Basic test and
measurement procedures -
Part 3-4: Examinations and measurements -
Attenuation
IEC 61300-3-6 - Fibre optic interconnecting devices and EN 61300-3-6 -
passive components - Basic test and
measurement procedures -
Part 3-6: Examinations and measurements -
Return loss
IEC 61300-3-28 - Fibre optic interconnecting devices and EN 61300-3-28 -
passive components - Basic test and
measurement procedures -
Part 3-28: Examinations and measurements -
Transient loss
IEC 61300-3-34 - Fibre optic interconnecting devices and EN 61300-3-34 -
passive components - Basic test and
measurement procedures -
Part 3-34: Examinations and measurements -
Attenuation of random mated connectors

IEC 61753-1 2007 Fibre optic interconnecting devices and EN 61753-1 2007
passive components performance standard -
Part 1: General and guidance for performance
standards
IEC 61754 Series Fibre optic connector interfaces EN 61754 Series

IEC 61755 Series Fibre optic connector optical interfaces EN 61755 Series

IEC 61753-021-3 ®
Edition 1.0 2012-12
INTERNATIONAL
STANDARD
Fibre optic interconnecting devices and passive components – Performance

standard –
Part 021-3: Single-mode fibre optic connectors for category U – Uncontrolled

environment
INTERNATIONAL
ELECTROTECHNICAL
COMMISSION
PRICE CODE
R
ICS 33.180.20 ISBN 978-2-83220-490-0

– 2 – 61753-021-3 © IEC:2012(E)
CONTENTS
FOREWORD . 3
1 Scope . 5
2 Normative references . 5
3 Terms and definitions . 6
4 Tests . 6
5 Test report . 7
6 Reference components . 7
7 Performance requirements . 7
7.1 Dimensions . 7
7.2 Sample size . 7
7.3 Connector set sample test configuration . 7
7.4 Cord sample test configuration . 8
7.5 Optical Interface requirements . 8
7.6 Performance criteria . 8
7.7 Performance details . 10
Annex A (normative) Sample size . 17
Bibliography . 18

Figure 1 – Pigtail assembly . 8
Figure 2 – Cord assembly . 8

Table 1 – Requirements for different performance levels . 8
Table 2 – Performance details . 10
Table A.1 – Sample size . 17

61753-021-3 © IEC:2012(E) – 3 –
INTERNATIONAL ELECTROTECHNICAL COMMISSION
____________
FIBRE OPTIC INTERCONNECTING DEVICES AND
PASSIVE COMPONENTS – PERFORMANCE STANDARD –

Part 021-3: Single-mode fibre optic connectors for category U –
Uncontrolled environment
FOREWORD
1) The International Electrotechnical Commission (IEC) is a worldwide organization for standardization comprising
all national electrotechnical committees (IEC National Committees). The object of IEC is to promote
international co-operation on all questions concerning standardization in the electrical and electronic fields. To
this end and in addition to other activities, IEC publishes International Standards, Technical Specifications,
Technical Reports, Publicly Available Specifications (PAS) and Guides (hereafter referred to as “IEC
Publication(s)”). Their preparation is entrusted to technical committees; any IEC National Committee interested
in the subject dealt with may participate in this preparatory work. International, governmental and non-
governmental organizations liaising with the IEC also participate in this preparation. IEC collaborates closely
with the International Organization for Standardization (ISO) in accordance with conditions determined by
agreement between the two organizations.
2) The formal decisions or agreements of IEC on technical matters express, as nearly as possible, an international
consensus of opinion on the relevant subjects since each technical committee has representation from all
interested IEC National Committees.
3) IEC Publications have the form of recommendations for international use and are accepted by IEC National
Committees in that sense. While all reasonable efforts are made to ensure that the technical content of IEC
Publications is accurate, IEC cannot be held responsible for the way in which they are used or for any
misinterpretation by any end user.
4) In order to promote international uniformity, IEC National Committees undertake to apply IEC Publications
transparently to the maximum extent possible in their national and regional publications. Any divergence
between any IEC Publication and the corresponding national or regional publication shall be clearly indicated in
the latter.
5) IEC itself does not provide any attestation of conformity. Independent certification bodies provide conformity
assessment services and, in some areas, access to IEC marks of conformity. IEC is not responsible for any
services carried out by independent certification bodies.
6) All users should ensure that they have the latest edition of this publication.
7) No liability shall attach to IEC or its directors, employees, servants or agents including individual experts and
members of its technical committees and IEC National Committees for any personal injury, property damage or
other damage of any nature whatsoever, whether direct or indirect, or for costs (including legal fees) and
expenses arising out of the publication, use of, or reliance upon, this IEC Publication or any other IEC
Publications.
8) Attention is drawn to the Normative references cited in this publication. Use of the referenced publications is
indispensable for the correct application of this publication.
9) Attention is drawn to the possibility that some of the elements of this IEC Publication may be the subject of
patent rights. IEC shall not be held responsible for identifying any or all such patent rights.
International Standard IEC 61753-021-3 has been prepared by subcommittee 86B: Fibre optic
interconnecting devices and passive components, of IEC technical committee 86: Fibre optics.
The text of this standard is based on the following documents:
FDIS Report on voting
86B/3495/FDIS 86B/3542/RVD
Full information on the voting for the approval of this standard can be found in the report on
voting indicated in the above table.
This publication has been drafted in accordance with the ISO/IEC Directives, Part 2.

– 4 – 61753-021-3 © IEC:2012(E)
A list of all parts of the IEC 61753 series, published under the general title Fibre optic
interconnecting devices and passive components – Performance standard, can be found on
the IEC website.
The committee has decided that the contents of this publication will remain unchanged until
the stability date indicated on the IEC web site under "http://webstore.iec.ch" in the data
related to the specific publication. At this date, the publication will be
• reconfirmed,
• withdrawn,
• replaced by a revised edition, or
• amended.
A bilingual version of this publication may be issued at a later date.

61753-021-3 © IEC:2012(E) – 5 –
FIBRE OPTIC INTERCONNECTING DEVICES AND
PASSIVE COMPONENTS – PERFORMANCE STANDARD –

Part 021-3: Single-mode fibre optic connectors for category U –
Uncontrolled environment
1 Scope
This part of IEC 61753 defines minimum initial test and measurement requirements and
severities which a single-mode connector, either part of a pigtail, or part of a cord, must
satisfy in order to be categorized as meeting the IEC standard category U (uncontrolled
environment).
2 Normative references
The following documents, in whole or in part, are normatively referenced in this document and
are indispensable for its application. For dated references, only the edition cited applies. For
undated references, the latest edition of the referenced document (including any
amendments) applies.
IEC 60793-2-50:2008, Optical fibres – Part 2-50: Product specifications – Sectional
specification for class B single-mode fibres
IEC 61300-2-1, Fibre optic interconnecting devices and passive components – Basic test and
measurement procedures – Part 2-1: Tests – Vibration (sinusoidal)
IEC 61300-2-2, Fibre optic interconnecting devices and passive components – Basic test and
measurement procedures – Part 2-2: Tests – Mating durability
IEC 61300-2-4, Fibre optic interconnecting devices and passive components – Basic test and
measurement procedures – Part 2-4: Tests – Fibre/cable retention
IEC 61300-2-6, Fibre optic interconnecting devices and passive components – Basic test and
measurement procedures – Part 2-6: Tests – Tensile strength of coupling mechanism
IEC 61300-2-12:2009, Fibre optic interconnecting devices and passive components – Basic
test and measurement procedures – Part 2-12: Tests – Impact
IEC 61300-2-17, Fibre optic interconnecting devices and passive components – Basic test
and measurement procedures – Part 2-17: Tests – Cold
IEC 61300-2-18, Fibre optic interconnecting devices and passive components – Basic test
and measurement procedures – Part 2-18: Tests – Dry heat – High temperature endurance
IEC 61300-2-22, Fibre optic interconnecting devices and passive components – Basic test
and measurement procedures – Part 2-22: Tests – Change of temperature
IEC 61300-2-42, Fibre optic interconnecting devices and passive components – Basic test
and measurement procedures – Part 2-42: Tests – Static side load for connectors

– 6 – 61753-021-3 © IEC:2012(E)
IEC 61300-2-44, Fibre optic interconnecting devices and passive components – Basic test
and measurement procedures – Part 2-44: Tests – Flexing of the strain relief of fibre optic
devices
IEC 61300-3-3, Fibre optic interconnecting devices and passive components – Basic test and
measurement procedures – Part 3-3: Examinations and measurements – Active monitoring of
changes in attenuation and return loss
IEC 61300-3-4, Fibre optic interconnecting devices and passive components – Basic test and
measurement procedures – Part 3-4: Examinations and measurements – Attenuation
IEC 61300-3-6, Fibre optic interconnecting devices and passive components – Basic test and
measurement procedures – Part 3-6: Examinations and measurements – Return loss
IEC 61300-3-28, Fibre optic interconnecting devices and passive components – Basic test
and measurement procedures – Part 3-28: Examinations and measurements – Transient loss
IEC 61300-3-34, Fibre optic interconnecting devices and passive components – Basic test
and measurement procedures – Part 3-34: Examinations and measurements – Attenuation of
random mated connectors
IEC 61753-1:2007, Fibre optic interconnecting devices and passive components performance
standard – Part 1: General and guidance for performance standards
IEC 61754 (all parts), Fibre optic connector interfaces
IEC 61755 (all parts), Fibre optic connector optical interfaces
3 Terms and definitions
For the purposes of this document, the following definitions apply.
3.1
change in attenuation
peak-to-peak variation of attenuation
3.2
sample
complete set of connector components required to provide demountable coupling between
one or more pairs of optical fibres
3.3
pigtail
a cabled fibre or a secondary coated fibre terminated with a connector on one end
3.4
cord
general term for terminated cable assembly
4 Tests
All test methods are in accordance with the relevant parts of IEC 61300 as defined in 7.6 and
7.7.
SIST EN 61753-021-3:
...