EN 61753-021-6:2008

SLOVENSKI STANDARD
01-marec-2008
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Fibre optic interconnecting devices and passive components performance standard -
Part 021-6: Grade B/2 single-mode fibre optic connectors for category O - Uncontrolled
environment (IEC 61753-021-6:2007)
Lichtwellenleiter - Verbindungselemente und passive Bauteile - Betriebsverhalten - Teil
021-6: Lichtwellenleiter-Steckverbinder der Stufe B/2 für Einmodenfasern für die
Kategorie O - Unkontrollierte Umgebung (IEC 61753-021-6:2007)
Norme de qualité de fonctionnement des dispositifs d'interconnexion et composants
passifs a fibres optiques - Partie 021-6: Connecteurs a fibres optiques unimodales de
classe B/2 pour la catégorie O - Environnement non contrôlé (CEI 61753-021-6:2007)
Ta slovenski standard je istoveten z: EN 61753-021-6:2008
ICS:
33.180.20
2003-01.Slovenski inštitut za standardizacijo. Razmnoževanje celote ali delov tega standarda ni dovoljeno.

EUROPEAN STANDARD
EN 61753-021-6
NORME EUROPÉENNE
January 2008
EUROPÄISCHE NORM
ICS 33.180.20
English version
Fibre optic interconnecting devices and passive components
performance standard -
Part 021-6: Grade B/2 single-mode fibre optic connectors for category O -
Uncontrolled environment
(IEC 61753-021-6:2007)
Norme de qualité de fonctionnement  Lichtwellenleiter -
des dispositifs d'interconnexion Verbindungselemente
et composants passifs à fibres optiques - und passive Bauteile -
Partie 021-6: Connecteurs à fibres Betriebsverhalten -
optiques unimodales de classe B/2 Teil 021-6: Lichtwellenleiter-
pour la catégorie O - Steckverbinder der Stufe B/2
Environnement non contrôlé für Einmodenfasern für die Kategorie O -
(CEI 61753-021-6:2007) Unkontrollierte Umgebung
(IEC 61753-021-6:2007)
This European Standard was approved by CENELEC on 2007-12-01. 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: rue de Stassart 35, B - 1050 Brussels

© 2008 CENELEC - All rights of exploitation in any form and by any means reserved worldwide for CENELEC members.
Ref. No. EN 61753-021-6:2008 E

Foreword
The text of document 86B/2592/FDIS, future edition 1 of IEC 61753-021-6, 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 was approved by CENELEC as EN 61753-021-6 on 2007-12-01.
The following dates were fixed:

– latest date by which the EN has to be implemented

at national level by publication of an identical
(dop) 2008-09-01
national standard or by endorsement

– latest date by which the national standards conflicting
(dow) 2010-12-01
with the EN have to be withdrawn
Annex ZA has been added by CENELEC.
__________
Notice
This document contains material that is Copyright © 2006, Telcordia Technologies, Inc. ("Telcordia").
All rights reserved.
The reader is advised that this IEC document and Telcordia source(s) may differ, and the context and use
of said material in this IEC document may differ from that of Telcordia. Telcordia makes no representation
or warranty, express or implied, with respect to the sufficiency, accuracy, or utility of any information or
opinion contained herein. Any use of or reliance upon said information or opinion is at the risk of the user.
Telcordia shall not be liable for any damage or injury incurred by any person arising out of the sufficiency,
accuracy, or utility of any information or opinion contained herein.
__________
Endorsement notice
The text of the International Standard IEC 61753-021-6:2007 was approved by CENELEC as a European
Standard without any modification.
__________
– 3 – EN 61753-021-6:2008
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
1) 2)
IEC 60793-2-50 – Optical fibres - EN 60793-2-50 2004
Part 2-50 : Product specifications - Sectional + corr. July 2004
specification for class B single-mode fibres

1) 2)
IEC 61300-2-1 – Fibre optic interconnecting devices and EN 61300-2-1 2003
passive components - Basic test and
measurement procedures -
Part 2-1: Tests - Vibration (sinusoidal)

1) 2)
IEC 61300-2-2 – Fibre optic interconnecting devices and EN 61300-2-2 2003
passive components - Basic test and
measurement procedures -
Part 2-2: Tests - Mating durability

1) 2)
IEC 61300-2-5 – Fibre optic interconnecting devices and EN 61300-2-5 2002
passive components - Basic test and
measurement procedures -
Part 2-5: Tests - Torsion/Twist

1) 2)
IEC 61300-2-12 – Fibre optic interconnecting devices and EN 61300-2-12 2005
passive components - Basic test and
measurement procedures -
Part 2-12: Tests - Impact
1) 2)
IEC 61300-2-18 – Fibre optic interconnecting devices and EN 61300-2-18 2005
passive components - Basic test and
measurement procedures -
Part 2-18: Tests - Dry heat - High
temperature endurance
1) 2)
IEC 61300-2-19 – Fibre optic interconnecting devices and EN 61300-2-19 2005
passive components - Basic test and
measurement procedures -
Part 2-19: Tests - Damp heat (steady state)

1) 2)
IEC 61300-2-22 – Fibre optic interconnecting devices and EN 61300-2-22 2007
passive components - Basic test and
measurement procedures -
Part 2-22: Tests - Change of temperature

1)
Undated reference.
2)
Valid edition at date of issue.

Publication Year Title EN/HD Year
1) 2)
IEC 61300-2-26 – Fibre optic interconnecting devices and EN 61300-2-26 2007
passive components - Basic test and
measurement procedures -
Part 2-26: Tests - Salt mist
1) 2)
IEC 61300-2-44 – Fibre optic interconnecting devices and EN 61300-2-44 2005
passive components - Basic test and
measurement procedures -
Part 2-44: Tests - Flexing of the strain relief
of fibre optic devices
1) 2)
IEC 61300-2-48 – Fibre optic interconnecting devices and EN 61300-2-48 2003
passive components - Basic test and
measurement procedures -
Part 2-48: Tests - Temperature-humidity
cycling
1) 2)
IEC 61300-2-49 – Fibre optic interconnecting devices and EN 61300-2-49 2007
passive components - Basic test and
measurement procedures -
Part 2-49: Tests - Connector installation test

1) 2)
IEC 61300-2-50 – Fibre optic interconnecting devices and EN 61300-2-50 2007
passive components - Basic test and
measurement procedures -
Part 2-50: Tests - Fibre optic connector proof
test with static load - Singlemode and
multimode
1) 2)
IEC 61300-2-51 – Fibre optic interconnecting devices and EN 61300-2-51 2007
passive components - Basic test and
measurement procedures -
Part 2-51: Tests - Fibre optic connector test
for transmission with applied tensile load -
singlemode and multimode
1) 2)
IEC 61300-3-1 – Fibre optic interconnecting devices and EN 61300-3-1 2005
passive components - Basic test and
measurement procedures -
Part 3-1: Examinations and measurements -
Visual examination
1) 2)
IEC 61300-3-3 – Fibre optic interconnecting devices and
EN 61300-3-3 2003
passive components - Basic test and
measurement procedures -
Part 3-3: Examinations and measurements -
Active monitoring of changes in attenuation
and return loss
1)
IEC 61300-3-4 – Fibre optic interconnecting devices and EN 61300-3-4 2001
passive components - Basic test and
measurement procedures -
Part 3-4: Examinations and measurements -
Attenuation
1) 2)
IEC 61300-3-6 – Fibre optic interconnecting devices and EN 61300-3-6 2003
passive components - Basic test and
measurement procedures -
Part 3-6: Examinations and measurements -
Return loss
– 5 – EN 61753-021-6:2008
Publication Year Title EN/HD Year
1) 2)
IEC 61300-3-34 – Fibre optic interconnecting devices and EN 61300-3-34 2002
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 (mod) Series Fibre optic connector interfaces EN 61754 Series

IEC 61755 (mod) Series Fibre optic connector optical interfaces EN 61755 Series

IEC 61755-3 (mod) Series Fibre optic connector optical interfaces - EN 61755-3 Series
Part 3: Optical interface
IEC 61753-021-6
Edition 1.0 2007-10
INTERNATIONAL
STANDARD
NORME
INTERNATIONALE
Fibre optic interconnecting devices and passive components performance
standard –
Part 021-6: Grade B/2 single-mode fibre optic connectors for category O –
Uncontrolled environment
Norme de qualité de fonctionnement des dispositifs d’interconnexion et
composants passifs à fibres optiques –
Partie 021-6: Connecteurs à fibres optiques unimodales de classe B/2 pour la
catégorie O – Environnement non contrôlé

INTERNATIONAL
ELECTROTECHNICAL
COMMISSION
COMMISSION
ELECTROTECHNIQUE
PRICE CODE
INTERNATIONALE
S
CODE PRIX
ICS 33.180.20 ISBN 2-8318-9325-9

– 2 – 61753-021-6 © IEC:2007
CONTENTS
FOREWORD.3
INTRODUCTION.5

1 Scope.6
2 Normative references .6
3 Terms and definitions .7
4 Test.8
5 Test report.9
6 Reference components.9
7 Performance requirements .9
7.1 Dimensions .9
7.2 Sample size, test sequencing and grouping.9
7.3 Endface geometry .9
7.4 Performance levels.9
7.5 Performance details .10

Annex A (normative) Sample size, test sequencing and grouping requirements .20

Figure 1 – Pigtail assembly.8
Figure 2 – Jumper cable assembly.8

Table 1 – Performance levels .10
Table 2 – Performance details .10

61753-021-6 © IEC:2007 – 3 –
INTERNATIONAL ELECTROTECHNICAL COMMISSION
____________
FIBRE OPTIC INTERCONNECTING
DEVICES AND PASSIVE COMPONENTS
PERFORMANCE STANDARD –
Part 021-6: Grade B/2 single-mode fibre
optic connectors for category O –
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 provides no marking procedure to indicate its approval and cannot be rendered responsible for any
equipment declared to be in conformity with an IEC Publication.
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 61753-021-6 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/2592/FDIS 86B/2616/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 – 61753-021-6 © IEC:2007
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 maintenance result 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.
___________
NOTICE
This document contains material that is Copyright © 2006, Telcordia Technologies, Inc.
("Telcordia"). All rights reserved.
The reader is advised that this IEC document and Telcordia source(s) may differ, and the
context and use of said material in this IEC document may differ from that of Telcordia.
TELCORDIA MAKES NO REPRESENTATION OR WARRANTY, EXPRESS OR IMPLIED,
WITH RESPECT TO THE SUFFICIENCY, ACCURACY, OR UTILITY OF ANY INFORMATION
OR OPINION CONTAINED HEREIN. ANY USE OF OR RELIANCE UPON SAID
INFORMATION OR OPINION IS AT THE RISK OF THE USER. TELCORDIA SHALL NOT BE
LIABLE FOR ANY DAMAGE OR INJURY INCURRED BY ANY PERSON ARISING OUT OF
THE SUFFICIENCY, ACCURACY, OR UTILITY OF ANY INFORMATION OR OPINION
CONTAINED HEREIN.
61753-021-6 © IEC:2007 – 5 –
INTRODUCTION
Performance standards define the requirements for standard optical performance under a set
of specified conditions. Each standard contains a series or a set of tests and measurements
with clearly stated conditions, severities and pass/fail criteria. The series of tests, commonly
referred to as an operating service environment or performance category, is intended to be
run on a ‘one-off’ basis to prove the product’s ability to satisfy the requirements of a specific
application, market sector or user group.
The subsequent parts of this document define those sets of tests which form each operating
service environment or performance category and which have been standardized for
international use. A product that has been shown to meet all the requirements of a
performance standard may be declared as complying with that performance standard.
Products having the same classification from one manufacturer that satisfy a performance
standard will operate within the boundaries set by the performance standard. Intermateability
or interchangeability of products from different suppliers (having the same classification and
conforming to the same performance standard) can only be guaranteed when these products
also meet the interface standards. Only in this condition will an equivalent level of
performance be provided when they are used together (for example, in the case of optical
connectors).
Conformance to a performance standard is not a guarantee of lifetime assured performance
or reliability.
Reliability testing must be the subject of a separate test schedule, where the tests and
severities selected are truly representative of the requirements of this reliability test
programme. Consistency of manufacture should be maintained using a recognized Quality
Assurance programme whilst the reliability of the product should be evaluated using the
procedures recommended in IEC 62005.
Tests and measurements should be selected from the IEC 61300 series. Where this is not
possible, the required test method should be attached as an annex to the performance
standard.
– 6 – 61753-021-6 © IEC:2007
FIBRE OPTIC INTERCONNECTING
DEVICES AND PASSIVE COMPONENTS
PERFORMANCE STANDARD –
Part 021-6: Grade B/2 single-mode fibre
optic connectors for category O –
Uncontrolled environment
1 Scope
This part of IEC 61753 defines B/2 performance levels which a singlemode connector/cable
assembly must satisfy in order to be categorised as meeting the IEC standard, Category O –
Uncontrolled environment, as defined in Table A.4b of IEC 61753-1.
2 Normative references
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.
IEC 60793-2-50: 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 61300-2-5, Fibre optic interconnecting devices and passive components – Basic test and
measurement procedures – Part 2-5: Tests – Torsion/Twist
IEC 61300-2-12, Fibre optic interconnecting devices and passive components – Basic test
and measurement procedures – Part 2-12: Tests – Impact
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 61300-2-19, Fibre optic interconnecting devices and passive components – Basic test
and measurement procedures – Part 2-19: Tests – Damp heat (steady state)
IEC 61300-2-22, Fibre optic interconnecting devices and passive components – Basic test
and measurement procedures – Part 2-22: Tests – Change of temperature
IEC 61300-2-26, Fibre optic interconnecting devices and passive components – Basic test
and measurement procedures – Part 2-26: Tests – Salt mist
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 61300-2-48, Fibre optic interconnecting devices and passive components – Basic test
and measurement procedures – Part 2-48: Tests – Temperature-humidity cycling

61753-021-6 © IEC:2007 – 7 –
IEC 61300-2-49, Fibre optic interconnecting devices and passive components – Basic test
and measurement procedures – Part 2-49: Tests – Connector installation test
IEC 61300-2-50, Fibre optic interconnecting devices and passive components – Basic test
and measurement procedures – Part 2-50: Tests – Fibre optic connector proof test with static
load – Singlemode and multimode
IEC 61300-2-51 Fibre optic interconnecting devices and passive components – Basic test and
measurement procedures – Part 2-51: Tests – Fibre optic connector test for transmission with
applied tensile load – singlemode and multimode
IEC 61300-3-1, Fibre optic interconnecting devices and passive components – Basic test and
measurement procedures – Part 3-1: Examinations and measurements – Visual examination
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 61300-3-34, 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
IEC 61755-3 (all parts), Fibre optic connector optical interfaces – Part 3: Optical interface
3 Terms and definitions
For the purposes of this document, the following definitions apply.
3.1
small form factor (SFF) connector
optical fibre connector with a ferrule with an outside diameter of less than 2,0 mm or a
connector designed to accommodate two or more optical fibres with at least the same
mounting density as the RJ-45 connector. SFF connectors have a smaller cross-sectional
area, about one-half that of traditional connectors
3.2
change in attenuation
peak-to-peak variation
3.3
sample
the complete set of connector components required to provide demountable coupling between
one or more pairs of optical fibres

– 8 – 61753-021-6 © IEC:2007
3.4
pigtail assembly
two connector plugs mated with an adapter with unterminated leads as shown in Figure 1
NOTE Each of the unterminated leads should be at least 3 m long so that the splices may be located outside of
the environmental test chamber.
Adapter
Connector
IEC  1967/07
Figure 1 – Pigtail assembly
3.5
jumper cable assembly
jumper cable terminated with plugs on each end, connected with adapters to two additional
connector plugs with unterminated leads on either end, as shown in Figure 2.
NOTE 1 The jumper cable should be (5 ± 0,5) m. Each of the unterminated leads should be long enough so that
the splices may be located outside of the environmental test chamber.
NOTE 2 The complete jumper cable assembly including the cable and both adaptors are located inside the
environmental test chamber
Adapter
Connector
IEC  1968/07
Figure 2 – Jumper cable assembly
4 Test
All test methods are in accordance with a specific IEC 61300 series standard as defined in 7.4
and 7.5.
The connectors under test shall be terminated onto singlemode fibre per IEC 60793-2-50,
type B1.1 or B1.3, in either secondary coated or cable format. The connector interface
standard shall meet the dimensions of IEC 61754 and the connector optical interface standard
shall meet the relevant requirements of IEC 61755.
Each test defines the number of samples to be evaluated. The sample set used for the first
test is to be composed of randomly selected and previously unstressed new samples. The
remaining tests are to be performed sequentially as per Tables 1 and 2 in 7.4 and 7.5
respectively, using the same samples.
The optical criteria for each test shall be as
...