SIST EN IEC 61753-021-03:2026
(Main)Fibre optic interconnecting devices and passive components - Performance standard - Part 021-03: Single-mode fibre optic connectors terminated as pigtails and patchcords for category OP - Outdoor protected environment (IEC 61753-021-03:2026)
Fibre optic interconnecting devices and passive components - Performance standard - Part 021-03: Single-mode fibre optic connectors terminated as pigtails and patchcords for category OP - Outdoor protected environment (IEC 61753-021-03:2026)
IEC 61753-021-03:2026 defines minimum initial test and measurement requirements and severities which single-mode fibre optic connectors terminated as a pigtail or a patchcord satisfy in order to be categorized as meeting the IEC standard category OP (outdoor protected environment), as defined in IEC 61753-1. If tests are performed on the connectors terminated as pigtails or patchcords for category OPHD, OP+ or OP+HD and the product passes these tests, the product will be automatically qualified or categorized as meeting the IEC standard for category OP. If tests are performed on the connectors terminated as pigtails or patchcords for category OP, and the product passes these tests, the product will be automatically qualified or categorized as meeting the IEC standard for category C or CHD.
This first edition cancels and replaces the first edition of IEC 61753-021-3 published in 2012.
This edition constitutes a technical revision. This edition includes the following significant technical changes with respect to the previous edition:
a) update of environmental categories (from U to OP), tests and their severities in accordance with IEC 61753‑1;
b) changes in the terms and definitions of the different types of test samples (pigtail test samples and patchcord test samples) used in the various tests to avoid confusion;
c) update of fibre naming conventions in accordance with IEC 60793‑2‑50 and addition of provisions for B‑657 fibres;
d) addition of all the attenuation and return loss grades defined in IEC 61753‑1;
e) deletion of the static side load test;
f) addition of provisions for rectangular ferrule connectors;
g) addition of the fibre optic connector proof test with static load – side pull;
h) update of the flexing of the strain relief test to use change of attenuation instead of transient loss;
i) addition of Annex B for visual examination of the outer cable sheath movement of reinforced cables as an additional requirement for change of temperature, cable retention and flexing of the strain relief tests.
Lichtwellenleiter – Verbindungselemente und passive Bauteile – Betriebsverhalten – Teil 021-3: Lichtwellenleiter-Steckverbinder für Einmodenfasern zum Anschluss an Pigtails und konfektionierte Kabel für die Kategorie OP – Freiluft, geschützte Umgebung (IEC 61753-021-03:2026)
Dispositifs d’interconnexion et composants passifs fibroniques - Norme de performance - Partie 021-03: Connecteurs à fibres optiques unimodales raccordés à des fibres amorces et des cordons de brassage pour la catégorie OP - Environnement extérieur protégé (IEC 61753-021-03:2026)
L’IEC 61753-021-03:2026 définit les exigences minimales d’essai et de mesures initiales et les sévérités auxquelles les connecteurs fibroniques unimodaux raccordés à des fibres amorces et des cordons de brassage satisfont pour être classés comme répondant à la catégorie OP (environnement extérieur protégé) de la norme IEC, telle qu’elle est définie dans l’IEC 61753-1.
Si les essais sont effectués sur les connecteurs raccordés à des fibres amorces et des cordons de brassage pour la catégorie OPHD, OP+ ou OP+HD et que le produit satisfait aux essais, il est automatiquement qualifié ou classé comme répondant à la catégorie OP de la norme IEC. Si les essais sont effectués sur les connecteurs raccordés à des fibres amorces et des cordons de brassage pour la catégorie OP, et que le produit satisfait aux essais, il est automatiquement qualifié ou classé comme répondant à la catégorie C ou CHD de la norme IEC.
Cette première édition annule et remplace la première édition de l'IEC 61753-021-3 parue en 2012.
Cette édition constitue une révision technique.Cette édition inclut les modifications techniques significatives suivantes par rapport à l'édition précédente:
a) mise à jour des catégories d’environnement (de U à OP), des essais et de leurs sévérités conformément à l’IEC 61753-1;
b) modification des termes et définitions des différents types d’échantillons d’essai (échantillons d’essai de fibres amorces et échantillons d’essai de cordons de brassage) utilisés dans les différents essais afin d’éviter toute confusion;
c) mise à jour des conventions de nommage des fibres, conformément à l’IEC 60793250 et ajout de dispositions pour les fibres B-657;
d) ajout de toutes les classes d’affaiblissement et d’affaiblissement de réflexion définies dans l’IEC 61753-1;
suppression de l’essai de charge latérale statique;
f) ajout de dispositions pour les connecteurs à férule rectangulaire;
g) ajout de l’essai de résistance des connecteurs fibroniques avec charge statique – traction latérale;
h) mise à jour de la flexion de l'essai des serre-câbles pour utiliser les variations d'affaiblissement à la place des pertes transitoires;
i) ajout de l’Annexe B relative à l’examen visuel du mouvement de la gaine extérieure du câble des câbles renforcés comme exigence supplémentaire pour les essais de variations de température, de rétention du câble et de flexion des serre-câbles.
Optični povezovalni elementi in pasivne komponente - Standard zmogljivosti - 3. del: Enorežimski optični priključki zaključeni kot pigtaile in patchcorde za kategorijo OP - Zunanje zaščiteno okolje (IEC 61753-021-03:2026)
IEC 61753-021-03:2026 določa minimalne začetne zahteve za preskuse in meritve ter stopnje resnosti, ki jih morajo izpolnjevati enomodna optična vlakenska konektorja, zaključena kot pigtail (krajši kabel z enim konektorjem) ali patchcord (kabel z dvema konektorjema), da se lahko razvrstijo kot ustrezni standardni kategoriji IEC OP (zunanje zaščiteno okolje), kot je opredeljeno v IEC 61753-1. Če se preskusi izvajajo na konektorjih, zaključenih kot pigtaili ali patchcordi za kategorijo OPHD, OP+ ali OP+HD in izdelek uspešno prestane te preskuse, bo izdelek samodejno kvalificiran ali razvrščen kot ustrezen standardu IEC za kategorijo OP. Če se preskusi izvajajo na konektorjih, zaključenih kot pigtaili ali patchcordi za kategorijo OP, in izdelek uspešno prestane te preskuse, bo izdelek samodejno kvalificiran ali razvrščen kot ustrezen standardu IEC za kategorijo C ali CHD.
Ta prva izdaja preklicuje in nadomešča prvo izdajo IEC 61753-021-3, objavljeno leta 2012.
Ta izdaja predstavlja tehnično revizijo. Ta izdaja vključuje naslednje pomembne tehnične spremembe v primerjavi s prejšnjo izdajo:
a) posodobitev okoljskih kategorij (iz U v OP), preskusov in njihovih stopenj resnosti v skladu z IEC 61753‑1;
b) spremembe v izrazih in definicijah različnih vrst preskusnih vzorcev (pigtail preskusni vzorci in patchcord preskusni vzorci), uporabljenih v različnih preskusih, da bi se izognili zmedi;
c) posodobitev konvencij poimenovanja vlaken v skladu z IEC 60793‑2‑50 in dodatek določb za vlakna B‑657;
d) dodatek vseh razredov dušenja in povratne izgube, določenih v IEC 61753‑1;
e) izbris preskusa statične stranske obremenitve;
f) dodatek določb za konektorje s pravokotno ferulo;
g) dodatek preskusa trdnosti optičnega vlakenskega konektorja s statično obremenitvijo – stranski poteg;
h) posodobitev preskusa upogibanja razbremenitve napetosti, da se uporabi sprememba dušenja namesto prehodne izgube;
i) dodatek Priloge B za vizualni pregled premikanja zunanje kabelske plašča ojačanih kablov kot dodatna zahteva za spremembo temperature, zadrževanje kabla in upogibanje preskusov razbremenitve napetosti.
General Information
- Status
- Published
- Public Enquiry End Date
- 31-May-2025
- Publication Date
- 22-Jun-2026
- Technical Committee
- MOC - Mobile Communications
- Current Stage
- 6060 - National Implementation/Publication (Adopted Project)
- Start Date
- 16-Jun-2026
- Due Date
- 21-Aug-2026
- Completion Date
- 23-Jun-2026
Relations
- Effective Date
- 01-Jun-2026
- Effective Date
- 26-May-2026
- Refers
SIST EN 61754-18:2004 - Fibre optic connector interfaces -- Part 18: Type MT-RJ connector family - Effective Date
- 26-May-2026
- Refers
SIST EN 61754-10:2002 - Fibre optic connector interfaces -- Part 10: Type Mini-MPO connector family - Effective Date
- 26-May-2026
- Effective Date
- 26-May-2026
- Effective Date
- 26-May-2026
- Refers
SIST EN 61754-15:2002 - Fibre optic connector interfaces -- Part 15: Type LSH connector family - Effective Date
- 26-May-2026
- Effective Date
- 26-May-2026
- Refers
SIST EN 61754-6:1999/A2:2005 - Fibre optic connector interfaces -- Part 6: Type MU connector family - Effective Date
- 26-May-2026
- Effective Date
- 26-May-2026
- Effective Date
- 26-May-2026
- Effective Date
- 26-May-2026
- Refers
SIST EN 61754-22:2006 - Fibre optic connector interfaces -- Part 22: Type F-SMA connector family - Effective Date
- 26-May-2026
- Effective Date
- 26-May-2026
- Effective Date
- 26-May-2026
Overview
SIST EN IEC 61753-021-03:2026 is an international standard developed by the Slovenian Institute for Standardization (SIST) and harmonized with the International Electrotechnical Commission (IEC) under IEC 61753-021-03:2026. This standard specifies the minimum test and measurement requirements and defined severities that single-mode fibre optic connectors, terminated as pigtails and patchcords, must satisfy to meet the category OP (Outdoor Protected Environment) criteria. The category OP is defined in IEC 61753-1 and covers connectors used in environments where outdoor protection is provided, ensuring robust performance in various environmental conditions.
This edition is a technical revision of the previous IEC 61753-021-3:2012 and reflects updates aligned with current technological advancements and industry needs. The standard provides requirements that support interoperability, reliability, and quality in fibre optic connections for outdoor applications.
Key Topics
Scope and Classification
- Defines requirements for single-mode fibre optic connectors terminated as pigtails and patchcords.
- Focuses on performance in outdoor protected environments.
- Connectors passing higher environmental category tests (OPHD, OP+, OP+HD) are automatically qualified for OP.
Test and Measurement
- Outlines minimum test conditions, including mechanical, climatic, and optical performance.
- References key IEC test methods for vibration, temperature changes, attenuation, return loss, strain relief, and more.
Technical Changes in 2026 Edition
- Updated environmental categories (from U to OP) and associated test severities.
- Revised terms and definitions for test samples-pigtail test samples and patchcord test samples-to avoid ambiguity.
- Updated fibre naming conventions to include the latest types defined in IEC 60793-2-50, supporting B-657 fibres.
- Inclusion of all attenuation and return loss grades set out in IEC 61753-1.
- Addition of new provisions for rectangular ferrule connectors and cable sheath movement.
- Introduction of the connector proof test with static load, side pull.
- Test procedures for flexing strain relief and requirements for visual examination of reinforced cables.
Applications
This standard has practical value for organizations involved in the design, manufacture, testing, and installation of fibre optic connectors, especially where outdoor reliability is crucial. Typical applications include:
- Telecommunications infrastructure: Outdoor junctions, street cabinets, and fibre-to-the-home (FTTH) deployments.
- Enterprise data networks: Outdoor protected connectivity between buildings or in campus environments.
- Industrial installations: Factories, refineries, or remote sensor locations needing robust fibre optic links.
- Utility and transport networks: Railways, highways, electrical substations, and intelligent traffic systems.
By adhering to SIST EN IEC 61753-021-03:2026, organizations ensure that their fibre optic connecting solutions perform reliably in protected outdoor settings, meeting recognized international benchmarks for quality and performance.
Related Standards
Implementing SIST EN IEC 61753-021-03:2026 often requires reference to several related international standards:
- IEC 61753-1: General guidance on performance standards for fibre optic interconnecting devices and passive components.
- IEC 60793-2-50: Product specifications for class B single-mode optical fibres, including latest conventions (B-652, B-657).
- IEC 61300 series: Basic test and measurement procedures for fibre optic connectors and passive components, covering methods for vibration, mating durability, tensile strength, impact, and more.
- IEC 61754 and IEC 61755 series: Specifications for connector interfaces and optical interfaces.
- IEC 60794-2-23 / IEC 60794-2-50: Standards for fibre optic cables used in connector assemblies.
Compliance with these standards enhances product compatibility, ensures reliable network performance, and supports international trade and procurement activities in the fibre optics sector.
Keywords: fibre optic connectors, single-mode, pigtails, patchcords, outdoor protected environment, IEC 61753-021-03, performance standard, category OP, fibre optic testing, international standards, optical connectivity, SIST.
Get Certified
Connect with accredited certification bodies for this standard
ANCE
Mexican certification and testing association.
Intertek Slovenia
Intertek testing, inspection, and certification services in Slovenia.
LNE (Laboratoire National de Métrologie et d'Essais)
French national laboratory for metrology and testing.
Sponsored listings
Frequently Asked Questions
SIST EN IEC 61753-021-03:2026 is a standard published by the Slovenian Institute for Standardization (SIST). Its full title is "Fibre optic interconnecting devices and passive components - Performance standard - Part 021-03: Single-mode fibre optic connectors terminated as pigtails and patchcords for category OP - Outdoor protected environment (IEC 61753-021-03:2026)". This standard covers: IEC 61753-021-03:2026 defines minimum initial test and measurement requirements and severities which single-mode fibre optic connectors terminated as a pigtail or a patchcord satisfy in order to be categorized as meeting the IEC standard category OP (outdoor protected environment), as defined in IEC 61753-1. If tests are performed on the connectors terminated as pigtails or patchcords for category OPHD, OP+ or OP+HD and the product passes these tests, the product will be automatically qualified or categorized as meeting the IEC standard for category OP. If tests are performed on the connectors terminated as pigtails or patchcords for category OP, and the product passes these tests, the product will be automatically qualified or categorized as meeting the IEC standard for category C or CHD. This first edition cancels and replaces the first edition of IEC 61753-021-3 published in 2012. This edition constitutes a technical revision. This edition includes the following significant technical changes with respect to the previous edition: a) update of environmental categories (from U to OP), tests and their severities in accordance with IEC 61753‑1; b) changes in the terms and definitions of the different types of test samples (pigtail test samples and patchcord test samples) used in the various tests to avoid confusion; c) update of fibre naming conventions in accordance with IEC 60793‑2‑50 and addition of provisions for B‑657 fibres; d) addition of all the attenuation and return loss grades defined in IEC 61753‑1; e) deletion of the static side load test; f) addition of provisions for rectangular ferrule connectors; g) addition of the fibre optic connector proof test with static load – side pull; h) update of the flexing of the strain relief test to use change of attenuation instead of transient loss; i) addition of Annex B for visual examination of the outer cable sheath movement of reinforced cables as an additional requirement for change of temperature, cable retention and flexing of the strain relief tests.
IEC 61753-021-03:2026 defines minimum initial test and measurement requirements and severities which single-mode fibre optic connectors terminated as a pigtail or a patchcord satisfy in order to be categorized as meeting the IEC standard category OP (outdoor protected environment), as defined in IEC 61753-1. If tests are performed on the connectors terminated as pigtails or patchcords for category OPHD, OP+ or OP+HD and the product passes these tests, the product will be automatically qualified or categorized as meeting the IEC standard for category OP. If tests are performed on the connectors terminated as pigtails or patchcords for category OP, and the product passes these tests, the product will be automatically qualified or categorized as meeting the IEC standard for category C or CHD. This first edition cancels and replaces the first edition of IEC 61753-021-3 published in 2012. This edition constitutes a technical revision. This edition includes the following significant technical changes with respect to the previous edition: a) update of environmental categories (from U to OP), tests and their severities in accordance with IEC 61753‑1; b) changes in the terms and definitions of the different types of test samples (pigtail test samples and patchcord test samples) used in the various tests to avoid confusion; c) update of fibre naming conventions in accordance with IEC 60793‑2‑50 and addition of provisions for B‑657 fibres; d) addition of all the attenuation and return loss grades defined in IEC 61753‑1; e) deletion of the static side load test; f) addition of provisions for rectangular ferrule connectors; g) addition of the fibre optic connector proof test with static load – side pull; h) update of the flexing of the strain relief test to use change of attenuation instead of transient loss; i) addition of Annex B for visual examination of the outer cable sheath movement of reinforced cables as an additional requirement for change of temperature, cable retention and flexing of the strain relief tests.
SIST EN IEC 61753-021-03:2026 is classified under the following ICS (International Classification for Standards) categories: 33.180.20 - Fibre optic interconnecting devices. The ICS classification helps identify the subject area and facilitates finding related standards.
SIST EN IEC 61753-021-03:2026 has the following relationships with other standards: It is inter standard links to SIST EN 61753-021-3:2013, SIST EN 61754-9:2004, SIST EN 61754-18:2004, SIST EN 61754-10:2002, SIST EN 61754-19:2004, SIST EN 61754-34:2017, SIST EN 61754-15:2002, SIST EN 61300-3-6:2009, SIST EN 61754-6:1999/A2:2005, SIST EN 61754-1:2014, SIST EN 61754-6:1999, SIST EN 61300-2-17:2011, SIST EN 61754-22:2006, SIST EN 61754-27:2013, SIST EN 61754-30:2014. Understanding these relationships helps ensure you are using the most current and applicable version of the standard.
SIST EN IEC 61753-021-03:2026 is available in PDF format for immediate download after purchase. The document can be added to your cart and obtained through the secure checkout process. Digital delivery ensures instant access to the complete standard document.
Standards Content (Sample)
SLOVENSKI STANDARD
01-september-2026
Nadomešča:
SIST EN 61753-021-3:2013
Optični spojni elementi in pasivne komponente - Tehnični standard - 021-03. del:
Konektorji za enorodovna optična vlakna, zaključeni z repki ali povezovalnimi
vrvicami za kategorijo OP - Zunanje zaščiteno okolje (IEC 61753-021-03:2026)
Fibre optic interconnecting devices and passive components - Performance standard -
Part 021-03: Single-mode fibre optic connectors terminated as pigtails and patchcords
for category OP - Outdoor protected environment (IEC 61753-021-03:2026)
Lichtwellenleiter – Verbindungselemente und passive Bauteile – Betriebsverhalten – Teil
021-3: Lichtwellenleiter-Steckverbinder für Einmodenfasern zum Anschluss an Pigtails
und konfektionierte Kabel für die Kategorie OP – Freiluft, geschützte Umgebung (IEC
61753-021-03:2026)
Dispositifs d’interconnexion et composants passifs fibroniques - Norme de performance -
Partie 021-03: Connecteurs à fibres optiques unimodales raccordés à des fibres
amorces et des cordons de brassage pour la catégorie OP - Environnement extérieur
protégé (IEC 61753-021-03:2026)
Ta slovenski standard je istoveten z: EN IEC 61753-021-03:2026
ICS:
33.180.20 Povezovalne naprave za Fibre optic interconnecting
optična vlakna devices
2003-01.Slovenski inštitut za standardizacijo. Razmnoževanje celote ali delov tega standarda ni dovoljeno.
EUROPEAN STANDARD EN IEC 61753-021-03
NORME EUROPÉENNE
EUROPÄISCHE NORM June 2026
ICS 33.180.20
Supersedes EN 61753-021-3:2013
English Version
Fibre optic interconnecting devices and passive components -
Performance standard - Part 021-03: Single-mode fibre optic
connectors terminated as pigtails and patchcords for category
OP - Outdoor protected environment
(IEC 61753-021-03:2026)
Dispositifs d'interconnexion et composants passifs Lichtwellenleiter - Verbindungselemente und passive
fibroniques - Norme de performance - Partie 021-03: Bauteile - Betriebsverhalten - Teil 021-3: Lichtwellenleiter-
Connecteurs fibroniques unimodaux raccordés à des fibres Steckverbinder für Einmodenfasern zum Anschluss an
amorces et des cordons de brassage pour la catégorie OP - Pigtails und konfektionierte Kabel für die Kategorie OP -
Environnement extérieur protégé Freiluft, geschützte Umgebung
(IEC 61753-021-03:2026) (IEC 61753-021-03:2026)
This European Standard was approved by CENELEC on 2026-05-27. 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,
Türkiye 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
© 2026 CENELEC All rights of exploitation in any form and by any means reserved worldwide for CENELEC Members.
Ref. No. EN IEC 61753-021-03:2026 E
European foreword
The text of document 86B/5180/FDIS, future edition 1 of IEC 61753-021-03, 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 IEC 61753-021-
03:2026.
The following dates are fixed:
• latest date by which the document has to be implemented at national (dop) 2027-06-30
level by publication of an identical national standard or by endorsement
• latest date by which the national standards conflicting with the (dow) 2029-06-30
document have to be withdrawn
This document supersedes EN 61753-021-3:2013 and all of its amendments and corrigenda (if any).
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.
Any feedback and questions on this document should be directed to the users’ national committee. A
complete listing of these bodies can be found on the CENELEC website.
Endorsement notice
The text of the International Standard IEC 61753-021-03:2026 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 standard indicated:
IEC 61754-4 NOTE Approved as EN IEC 61754-4
IEC 61754-20 NOTE Approved as EN 61754-20
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.cencenelec.eu.
Publication Year Title EN/HD Year
IEC 60793-2-50 - Optical fibres - Part 2-50: Product EN IEC 60793-2-50 -
specifications - Sectional specification for
class B single-mode fibres
IEC 60794-2-23 - Optical fibre cables - Part 2-23: Indoor cables EN IEC 60794-2-23 -
- Detail specification for multi-fibre cables for
use in MPO connector terminated cable
assemblies
IEC 60794-2-50 - Optical fibre cables - Part 2-50: Indoor cables EN IEC 60794-2-50 -
- Family specification for simplex and duplex
cables for use in terminated cable
assemblies
IEC 61300-1 - Fibre optic interconnecting devices and EN IEC 61300-1 -
passive components - Basic test and
measurement procedures - Part 1: General
and guidance
IEC 61300-2-1 - Fibre optic interconnecting devices and EN IEC 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 IEC 61300-2-4 -
passive components - Basic test and
measurement procedures - Part 2-4: Tests -
Fibre or cable retention
IEC 61300-2-5 - Fibre optic interconnecting devices and EN IEC 61300-2-5 -
passive components - Basic test and
measurement procedures - Part 2-5: Tests -
Torsion
Publication Year Title EN/HD Year
IEC 61300-2-6 - Fibre optic interconnecting devices and EN IEC 61300-2-6 -
passive components - Basic test and
measurement procedures - Part 2-6: Tests -
Tensile strength of coupling mechanism
IEC 61300-2-7 - Fibre optic interconnecting devices and EN 61300-2-7 -
passive components - Basic test and
measurement procedures - Part 2-7: Tests -
Bending moment
IEC 61300-2-12 - Fibre optic interconnecting devices and EN 61300-2-12 -
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 IEC 61300-2-18 -
passive components - Basic test and
measurement procedures - Part 2-18: Tests -
Dry heat
IEC 61300-2-22 - Fibre optic interconnecting devices and EN IEC 61300-2-22 -
passive components - Basic test and
measurement procedures - Part 2-22: Tests -
Change of temperature
IEC 61300-2-26 - Fibre optic interconnecting devices and EN IEC 61300-2-26 -
passive components - Basic test and
measurement procedures - Part 2-26: Tests -
Salt mist
IEC 61300-2-27 - Fibre optic interconnecting devices and EN IEC 61300-2-27 -
passive components - Basic test and
measurement procedures - Part 2-27: Tests -
Dust (laminar flow)
IEC 61300-2-44 - Fibre optic interconnecting devices and EN IEC 61300-2-44 -
passive components - Basic test and
measurement procedures - Part 2-44: Tests -
Flexing of the strain relief of fibre optic
devices and components
IEC 61300-2-46 - Fibre optic interconnecting devices and EN IEC 61300-2-46 -
passive components - Basic test and
measurement procedures - Part 2-46: Tests -
Damp heat, cyclic
IEC 61300-2-50 - Fibre optic interconnecting devices and EN 61300-2-50 -
passive components - Basic test and
measurement procedures - Part 2-50: Tests -
Fibre optic connector proof test with static
load - Singlemode and multimode
IEC 61300-3-1 - Fibre optic interconnecting devices and EN 61300-3-1 -
passive components - Basic test and
measurement procedures - Part 3-1:
Examinations and measurements - Visual
examination
Publication Year Title EN/HD Year
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 IEC 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 61300-3-45 - Fibre optic interconnecting devices and EN IEC 61300-3-45 -
passive components - Basic test and
measurement procedures - Part 3-45:
Examinations and measurements -
Attenuation of random mated multi-fibre
connectors
IEC 61753-1 - Fibre optic interconnecting devices and EN IEC 61753-1 -
passive components - Performance standard
- Part 1: General and guidance
IEC 61754 series Fibre optic interconnecting devices and EN 61754 series
passive components - Fibre optic connector
interfaces
IEC 61755 series Fibre optic interconnecting devices and EN IEC 61755 series
passive components - Connector optical
interfaces for single-mode fibres
IEC 61754-4 - Fibre optic interconnecting devices and EN IEC 61754-4 -
passive components - Fibre optic connector
interfaces - Part 4: Type SC connector family
IEC 61754-20 - Fibre optic interconnecting devices and EN 61754-20 -
passive components - Fibre optic connector
interfaces - Part 20: Type LC connector
family
IEC 61753-021-03 ®
Edition 1.0 2026-04
INTERNATIONAL
STANDARD
Fibre optic interconnecting devices and passive components - Performance
standard -
Part 021-03: Single-mode fibre optic connectors terminated as pigtails and
patchcords for category OP - Outdoor protected environment
ICS 33.180.20 ISBN 978-2-8327-1212-2
IEC 61753-021-03:2026-04(en)
IEC 61753-021-03:2026 © IEC 2026
CONTENTS
FOREWORD . 2
1 Scope . 4
2 Normative references . 4
3 Terms and definitions . 6
4 Tests . 7
5 Test report . 7
6 Reference components. 7
7 Performance requirements . 7
7.1 General . 7
7.2 Dimensions . 7
7.3 Sample size and test sequencing . 7
7.4 Endface geometry . 7
7.5 Visual examination. 8
7.6 Performance criteria. 8
7.7 Performance details . 10
Annex A (normative) Sample size . 16
Annex B (normative) Visual examination of outer cable sheath movement . 17
B.1 Overview . 17
B.2 Preparation of the sample and initial visual examination . 17
B.3 Final visual examination of outer cable sheath movement . 17
Bibliography . 19
Figure B.1 – Example of initial marking of the cable sheath. 17
Figure B.2 – Example of final visual examination . 18
Table 1 – Pass/Fail criteria . 8
Table 2 – Performance test details . 10
Table A.1 – Sample size . 16
IEC 61753-021-03:2026 © IEC 2026
INTERNATIONAL ELECTROTECHNICAL COMMISSION
____________
Fibre optic interconnecting devices and
passive components - Performance standard -
Part 021-03: Single-mode fibre optic connectors terminated as pigtails
and patchcords for category OP - Outdoor protected 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) IEC draws attention to the possibility that the implementation of this document may involve the use of (a)
patent(s). IEC takes no position concerning the evidence, validity or applicability of any claimed patent rights in
respect thereof. As of the date of publication of this document, IEC had not received notice of (a) patent(s), which
may be required to implement this document. However, implementers are cautioned that this may not represent
the latest information, which may be obtained from the patent database available at https://patents.iec.ch. IEC
shall not be held responsible for identifying any or all such patent rights.
IEC 61753-021-03 has been prepared by subcommittee 86B: Fibre optic interconnecting
devices and passive components, of IEC technical committee 86: Fibre optics. It is an
International Standard.
This first edition cancels and replaces the first edition of IEC 61753-021-3 published in 2012.
This edition constitutes a technical revision.
This edition includes the following significant technical changes with respect to IEC 61753-021-
3:2012:
a) update of environmental categories (from U to OP), tests and their severities in accordance
with IEC 61753-1;
b) changes in the terms and definitions of the different types of test samples (pigtail test
samples and patchcord test samples) used in the various tests to avoid confusion;
IEC 61753-021-03:2026 © IEC 2026
c) update of fibre naming conventions in accordance with IEC 60793-2-50 and addition of
provisions for B-657 fibres;
d) addition of all the attenuation and return loss grades defined in IEC 61753-1;
e) deletion of the static side load test;
f) addition of provisions for rectangular ferrule connectors;
g) addition of the fibre optic connector proof test with static load – side pull;
h) update of the flexing of the strain relief test to use change of attenuation instead of transient
loss;
i) addition of Annex B for visual examination of the outer cable sheath movement of reinforced
cables as an additional requirement for change of temperature, cable retention and flexing
of the strain relief tests.
The text of this International Standard is based on the following documents:
Draft Report on voting
86B/5180/FDIS 86B/5217/RVD
Full information on the voting for its approval can be found in the report on voting indicated in
the above table.
The language used for the development of this International Standard is English.
This document was drafted in accordance with ISO/IEC Directives, Part 2, and developed in
accordance with ISO/IEC Directives, Part 1 and ISO/IEC Directives, IEC Supplement, available
at www.iec.ch/members_experts/refdocs. The main document types developed by IEC are
described in greater detail at www.iec.ch/publications.
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 document will remain unchanged until the
stability date indicated on the IEC website under webstore.iec.ch in the data related to the
specific document. At this date, the document will be
– reconfirmed,
– withdrawn, or
– revised.
IEC 61753-021-03:2026 © IEC 2026
1 Scope
This part of IEC 61753 defines minimum initial test and measurement requirements and
severities which single-mode fibre optic connectors terminated as a pigtail or a patchcord satisfy
in order to be categorized as meeting the IEC standard category OP (outdoor protected
environment), as defined in IEC 61753-1.
HD
,
If tests are performed on the connectors terminated as pigtails or patchcords for category OP
HD
OP+ or OP+ and the product passes these tests, the product will be automatically qualified
or categorized as meeting the IEC standard for category OP. If tests are performed on the
connectors terminated as pigtails or patchcords for category OP, and the product passes these
tests, the product will be automatically qualified or categorized as meeting the IEC standard for
HD
category C or C .
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.
IEC 60793-2-50, Optical fibres - Part 2-50: Product specifications - Sectional specification for
class B single-mode fibres
IEC 60794-2-23, Optical fibre cables - Part 2-23: Indoor cables - Detailed specification for multi-
fibre cables for use in MPO connector terminated cable assemblies
IEC 60794-2-50, Optical fibre cables - Part 2-50: Indoor cables - Family specification for simplex
and duplex cables for use in terminated cable assemblies
IEC 61300-1, Fibre optic interconnecting devices and passive components - Basic test and
measurement procedures - Part 1: General and guidance
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 or cable retention
IEC 61300-2-5, Fibre optic interconnecting devices and passive components - Basic test and
measurement procedures - Part 2-5: Tests - Torsion
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 61300-2-7, Fibre optic interconnecting devices and passive components - Basic test and
measurement procedures - Part 2-7: Tests - Bending moment
IEC 61300-2-12, 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 61753-021-03:2026 © IEC 2026
IEC 61300-2-18, Fibre optic interconnecting devices and passive components - Basic test and
measurement procedures - Part 2-18: Tests - Dry heat
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 61300-2-27, Fibre optic interconnecting devices and passive components - Basic test and
measurement procedures - Part 2-27: Tests - Dust - Laminar flow
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
and components
IEC 61300-2-46, Fibre optic interconnecting devices and passive components - Basic test and
measurement procedures - Part 2-46: Tests - Damp heat, cyclic
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 61300-3-1, Fibre optic interconnecting devices and passive components - Basic test and
measurement procedures
...