EN 61753-031-3:2015

Fibre optic interconnecting devices and passive components - Performance standard - Part 031-3: Non-connectorized single-mode 1×N and 2×N non-wavelength-selective branching devices for Category U - Uncontrolled environment

IEC 61753-031-2:2014(E) contains the minimum initial tests and measurement requirements and severities which a non-wavelength selective branching device (NWBD) should satisfy in order to be categorized as meeting the requirement of this IEC standard. The requirements cover balanced bidirectional non-connectorized single-mode 1xN and 2xN non wavelength-selective branching devices for use in an IEC Category C environment (N is the number of branching ports), especially but not exclusively used for PON application. For balanced NWBD two attenuation and uniformity performance classes are considered: - class A (premium class) which meets more restrictive requirements (i.e. for extended reach PON application) and - class B (standard class) for standard application (i.e. normal reach PON application). The requirements also cover unbalanced bidirectional non-connectorized single-mode, non-wavelength-selective branching devices; however, the specifications of unbalanced branching devices are limited to 1x2 and 2x2 devices because they are the most commonly used. Keywords: non-wavelength selective branching device (NWBD), IEC Category C environment

Lichtwellenleiter - Verbindungselemente und passive Bauteile - Betriebsverhalten - Teil 031-3: Nicht mit Steckverbindern versehene wellenlängenunabhängige Einmoden - 1xN und 2xN - Verzweiger für die Kategorie U - Unkontrollierte Umgebung

Dispositifs d'interconnexion et composants passifs à fibres optiques - Norme de performance - Partie 031-3: Dispositifs de couplage indépendants de la longueur d’onde 1xN et 2xN en unimodal, non-connectorisés, pour catégorie U - Environnement non contrôlé

L'IEC 61753-031-3:2014 contient les exigences et les sévérités initiales minimales d'essais et de mesures auxquelles il convient qu'un dispositif de couplage indépendant de la longueur d'onde (NWBD) satisfasse afin d'être classé comme conforme à la présente norme. Ces exigences couvrent les dispositifs de couplage 1xN et 2xN en unimodal, non connectorisés, bidirectionnels symétriques destinés à être utilisés dans un environnement de catégorie U selon l'IEC (N correspond au nombre de ports de connexion), utilisés en particulier, mais pas de manière exclusive, pour les applications PON. Dans le cas des NWBD symétriques, deux classes d'affaiblissement et d'uniformité sont prises en compte: - La classe A (classe de première qualité) qui satisfait aux exigences les plus restrictives (à savoir pour les applications PON étendues) et - la classe B (classe normale) pour les applications normales (à savoir par exemple les applications PON d'étendue normale). Ces exigences couvrent aussi les dispositifs de couplage indépendants de la longueur d'onde en unimodal non-connectorisés bidirectionnels asymétriques; toutefois les spécifications des dispositifs de couplage asymétriques sont limitées aux dispositifs 1 x 2 et 2 x 2 car ce sont eux qui sont les plus couramment utilisés. Cette deuxième édition de l'IEC 61753-031-3 annule et remplace la première édition parue en 2009 et constitue une révision technique. Cette édition inclut les modifications techniques majeures suivantes par rapport à l'édition précédente: - domaine d'application mis à jour et étendu pour rendre compte de l'introduction de deux classes de performances d'affaiblissement et d'uniformité pour les NWBD symétriques à la place des technologies des dispositifs de couplage du marché; - liste des références normatives mise à jour; - introduction simplifiée aux deux types de bandes spectrales; - Article 5, Exigences de performances, mis à jour et étendu pour rendre compte de l'introduction de deux classes de performances d'affaiblissement et d'uniformité pour les NWBD symétriques; - simplification des essais pour exclure les essais de chaleur humide (état continu) et de chocs pour les exigences de performances; - modification de l'Annexe A pour introduire les exigences calculées et minimales pour l'affaiblissement et l'uniformité; - mise à jour de l'Annexe B pour rendre compte de la révision des exigences de performances. Mots clés: dispositif de couplage indépendant de la longueur d'onde (NWBD), environnement de catégorie U de l'IEC

Optični spojni elementi in pasivne komponente - Tehnični standard - 031-3. del: Enorodni 1xN in 2xN nevalovno dolžinski selektivni optični sklopniki brez konektorjev za kategorijo U - Nenadzorovano okolje (IEC 61753-031-3:2014)

Ta del standarda IEC 61753 zajema najmanjše začetne zahteve in stopnje zahtevnosti za preskuse in meritve, ki jih mora izpolnjevati valovnodolžinsko neodvisni selektivni razvejilni element (NWBD), da ustreza zahtevam tega standarda.
Zahteve zajemajo uravnotežene dvosmerne enorodne valovnodolžinsko neodvisne selektivne razvejilne elemente 1 × N in
2 × N brez konektorjev za uporabo v okolju kategorije IEC U
(N je število razvejilnih vrat), ki se še posebej uporabljajo za PON, vendar ne izključno.
Za uravnotežene nevalovno dolžinske selektivne optične sklopnike sta obravnavana dva kakovostna razreda slabljenja in enotnosti:
razred A (premium razred), ki izpolnjuje strožje zahteve (tj. PON
z razširjenim dosegom), in razred B (standardni razred) za standardno uporabo (tj. PON
z običajnim dosegom).
Zahteve zajemajo tudi neuravnotežene dvosmerne enorodne nevalovno dolžinske
selektivne optične sklopnike; vendar so specifikacije neuravnoteženih optičnih
sklopnikov omejene na naprave 1 × 2 in 2 × 2, ker se uporabljajo najpogosteje.

General Information

• Status: Published
• Publication Date: 12-Mar-2015
• Withdrawal Date: 19-Jan-2016
• ICS: 33.180.10 - Fibres and cables
• Technical Committee: CLC/TC 86BXA - Fibre optic interconnect, passive and connectorised components
• Drafting Committee: IEC/SC 86B - IEC_SC_86B
• Current Stage: 6060 - Document made available - Publishing
• Start Date: 13-Mar-2015
• Completion Date: 13-Mar-2015
• Ref Project: SIST EN 61753-031-3:2015 - Fibre optic interconnecting devices and passive components - Performance standard - Part 031-3: Non-connectorised single-mode 1xN and 2xN non-wavelength-selective branching devices for Category U - Uncontrolled environment (IEC 61753-031-3:2014)

Relations

• Replaces: EN 61753-031-3:2009 - Fibre optic interconnecting devices and passive components performance standard - Part 031-3: Non-connectorized single-mode 1xN and 2xN non-wavelength-selective branching devices (NWBD) for Category U - Uncontrolled environment
• Effective Date: 29-Jan-2023

Overview

EN 61753-031-3:2015 (IEC 61753-031-3:2014) is a performance standard for non-connectorized single‑mode 1×N and 2×N non‑wavelength‑selective branching devices (NWBD) intended for Category U - Uncontrolled environment. The standard defines the minimum initial tests, measurement requirements, sample sizes and reporting needed to verify device performance, with a focus on balanced and unbalanced bidirectional NWBDs commonly used in passive optical networks (PON) and access networks.

Key topics and requirements

• Scope and device types: Covers non‑connectorized single‑mode NWBDs in 1×N and 2×N configurations. Balanced bidirectional NWBDs have two performance classes; unbalanced devices are covered specifically for 1×2 and 2×2 configurations.
• Performance classes:
  • Class A (premium) - more restrictive attenuation and uniformity for extended‑reach PON.
  • Class B (standard) - for normal‑reach PON applications.
• Measured parameters: Attenuation, uniformity (port‑to‑port variation), directivity, return loss and transient loss are among the documented performance metrics.
• Test procedures referenced: The standard uses methods from the IEC 61300 series (vibration, shock, temperature cycling, damp heat cyclic, fibre/cable retention, polarization‑dependent loss, return loss, directivity, transient loss, etc.) and other normative references such as IEC 60793‑2‑50 for single‑mode fibre characteristics.
• Test structure and deliverables: Specifies sample size, test sequences, pass/fail criteria, dimensional checks and required content for the test report.
• Environment: Tailored for Category U - devices expected to operate in uncontrolled or outdoor environments where environmental stresses are variable.

Applications and who uses it

• Primary applications: Passive Optical Network (PON) splits and branching implementations, access networks, and other fibre distribution systems requiring non‑connectorized branching devices.
• Primary users:
  • Component and device manufacturers (design verification and production qualification)
  • Test laboratories and certification bodies (conformance testing to EN/IEC requirements)
  • Network operators and specifiers (procurement and acceptance criteria)
  • System integrators and R&D teams (product selection and system design)

Related standards

• IEC 61753 series (general performance standards for fibre optic interconnects)
• IEC 61300 series (basic test and measurement procedures)
• IEC 60793‑2‑50 (single‑mode fibre product specification)
• EN 61753‑031‑2 / other parts of IEC 61753 for complementary requirements and environmental categories

EN 61753‑031‑3:2015 is essential reading when specifying, testing or procuring NWBDs for uncontrolled environments and when ensuring consistent attenuation, uniformity and reliability across PON deployments.

Standards Content (Sample)

SLOVENSKI STANDARD
01-oktober-2015
2SWLþQLVSRMQLHOHPHQWLLQSDVLYQHNRPSRQHQWH7HKQLþQLVWDQGDUGGHO
(QRURGQL[1LQ[1QHYDORYQRGROåLQVNLVHOHNWLYQLRSWLþQLVNORSQLNLEUH]
NRQHNWRUMHY]DNDWHJRULMR81HQDG]RURYDQRRNROMH,(&
Fibre optic interconnecting devices and passive components - Performance standard -
Part 031-3: Non-connectorised single-mode 1xN and 2xN non-wavelength-selective
branching devices for Category U - Uncontrolled environment (IEC 61753-031-3:2014)
Lichtwellenleiter - Verbindungselemente und passive Bauteile - Betriebsverhalten - Teil
031-3: Nicht mit Steckverbindern versehene wellenlängenunabhängige Einmoden - 1xN
und 2xN - Verzweiger für die Kategorie U - Unkontrollierte Umgebung (IEC 61753-031-
3:2014)
Dispositifs d'interconnexion et composants passifs à fibres optiques - Norme de
performance - Partie 031-3: Dispositifs de couplage indépendants de la longueur d'onde
1xN et 2xN en unimodal, non-connectorisés, pour catégorie U - Environnement non
contrôlé (IEC 61753-031-3:2014)
Ta slovenski standard je istoveten z: EN 61753-031-3:2015
ICS:
33.180.10 2SWLþQDYODNQDLQNDEOL Fibres and cables
2003-01.Slovenski inštitut za standardizacijo. Razmnoževanje celote ali delov tega standarda ni dovoljeno.

EUROPEAN STANDARD EN 61753-031-3

NORME EUROPÉENNE
EUROPÄISCHE NORM
March 2015
ICS 33.180.10 Supersedes EN 61753-031-3:2009
English Version
Fibre optic interconnecting devices and passive components -
Performance standard - Part 031-3: Non-connectorized single-
mode 1×N and 2×N non-wavelength-selective branching devices
for Category U - Uncontrolled environment
(IEC 61753-031-3:2014)
Dispositifs d'interconnexion et composants passifs à fibres Lichtwellenleiter - Verbindungselemente und passive
optiques - Norme de performance - Partie 031-3: Dispositifs Bauteile - Betriebsverhalten - Teil 031-3: Nicht mit
de couplage indépendants de la longueur d'onde 1xN et Steckverbindern versehene wellenlängenunabhängige
2xN en unimodal, non-connectorisés, pour catégorie U - Einmoden - 1xN und 2xN - Verzweiger für die Kategorie U -
Environnement non contrôlé Unkontrollierte Umgebung
(IEC 61753-031-3:2014) (IEC 61753-031-3:2014)
This European Standard was approved by CENELEC on 2015-01-20. 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.

European Committee for Electrotechnical Standardization
Comité Européen de Normalisation Electrotechnique
Europäisches Komitee für Elektrotechnische Normung
CEN-CENELEC Management Centre: Avenue Marnix 17, B-1000 Brussels
© 2015 CENELEC All rights of exploitation in any form and by any means reserved worldwide for CENELEC Members.
Ref. No. EN 61753-031-3:2015 E

Foreword
The text of document 86B/3792/FDIS, future edition 2 of IEC 61753-031-3, 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 61753-031-3:2015.
The following dates are fixed:
(dop) 2015-10-20
• latest date by which the document has to be implemented at
national level by publication of an identical national
standard or by endorsement
(dow) 2016-01-20
• latest date by which the national standards conflicting with
the document have to be withdrawn

This document supersedes EN 61753-031-3:2009.
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 61753-031-3:2014 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 60875-1 NOTE Harmonized as EN 60875-1.
IEC 61753-1 NOTE Harmonized as EN 61753-1.

- 3 - EN 61753-031-3:2015
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 1 When 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 60793-2-50 2012 Optical fibres - EN 60793-2-50 2013
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 61300-2-4 -  Fibre optic interconnecting devices and EN 61300-2-4 -
passive components - Basic test and
measurement procedures -
Part 2-4: Tests - Fibre/cable retention
IEC 61300-2-5 -  Fibre optic interconnecting devices and EN 61300-2-5 -
passive components - Basic test and
measurement procedures -
Part 2-5: Tests - Torsion
IEC 61300-2-9 -  Fibre optic interconnecting devices and EN 61300-2-9 -
passive components - Basic test and
measurement procedures -
Part 2-9: Tests - Shock
IEC 61300-2-14 -  Fibre optic interconnecting devices and EN 61300-2-14 -
passive components - Basic test and
measurement procedures -
Part 2-14: Tests - High optical power
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
Publication Year Title EN/HD Year
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 strain
relief
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 61300-2-46 -  Fibre optic interconnecting devices and EN 61300-2-46 -
passive components - Basic test and
measurement procedures -
Part 2-46: Tests - Damp heat cyclic
IEC 61300-3-2 2009 Fibre optic interconnecting devices and EN 61300-3-2 2009
passive components - Basic test and
measurement procedures -
Part 3-2: Examinations and
measurements - Polarization dependent
loss in a single-mode fibre optic device
IEC 61300-3-3 2009 Fibre optic interconnecting devices and EN 61300-3-3 2009
passive components - Basic test and
measurement procedures -
Part 3-3: Examinations and
measurements - Active monitoring of
changes in attenuation and return loss
IEC 61300-3-6 2008 Fibre optic interconnecting devices and EN 61300-3-6 2009
passive components - Basic test and
measurement procedures -
Part 3-6: Examinations and
measurements - Return loss
IEC 61300-3-7 (mod) 2009 Fibre optic interconnecting devices and EN 61300-3-7 2012
passive components - Basic test and
measurement procedures -
Part 3-7: Examinations and
measurements - Wavelength dependence
of attenuation and return loss of single
mode components
IEC 61300-3-20 -  Fibre optic interconnecting devices and EN 61300-3-20 -
passive components - Basic test and
measurement procedures -
Part 3-20: Examinations and
measurements - Directivity of fibre optic
branching devices
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 61753-031-3 ®
Edition 2.0 2014-12
INTERNATIONAL
STANDARD
Fibre optic interconnecting devices and passive components – Performance

standard –
Part 031-3: Non-connectorized single-mode 1×N and 2×N non-wavelength-

selective branching devices for Category U – Uncontrolled environment

INTERNATIONAL
ELECTROTECHNICAL
COMMISSION
PRICE CODE
R
ICS 33.180.10 ISBN 978-2-8322-1819-8

– 2 – IEC 61753-031-3:2014 © IEC 2014
CONTENTS
FOREWORD . 3
1 Scope . 5
2 Normative references . 5
3 Test . 6
4 Test report . 7
5 Performance requirements . 7
5.1 Dimensions . 7
5.2 Sample size . 7
5.3 Test details and requirements . 7
Annex A (normative) A and U requirements of 1 × N and 2 × N NWBDs . 15
A.1 Attenuation and uniformity requirements of 1 × N and 2 × N NWBDs
calculated by the equations of Tests No.1 and 2 . 15
A.2 Minimum requirements at room temperature of attenuation values for
balanced bidirectional 1 × N and 2 × N NWBD . 16
Annex B (normative) Sample size . 18
Bibliography . 19

Table 1 – Test details and requirements . 8
Tableau A.1 – Attenuation and uniformity requirements of balanced bidirectional
NWBD having the most common port configurations for Class A, with the underlying
formulas as specified in the Tests 1 and 2 of Table 1 . 15
Tableau A.2 – Attenuation and uniformity requirements of balanced bidirectional
NWBD having the most common port configurations for Class B, with the underlying
formulas as specified in the Tests 1 and 2 of Table 1 . 16
Tableau A.3 – Attenuation requirements of 1 × 2 and 2 × 2 unbalanced NWBD having
the most common port configurations, with the underlying formula as specified in Test
1 of Table 1 . 16
Tableau A.4 – Minimum requirements at room temperature of attenuation values for
Class A balanced bidirectional NWBD . 17
Tableau A.5 – Minimum requirements at room temperature of attenuation values for

Class B balanced bidirectional NWBD . 17
Table B.1 – Sample size for each test . 18

IEC 61753-031-3:2014 © IEC 2014 – 3 –
INTERNATIONAL ELECTROTECHNICAL COMMISSION
____________
FIBRE OPTIC INTERCONNECTING
DEVICES AND PASSIVE COMPONENTS –
PERFORMANCE STANDARD –
Part 031-3: Non-connectorized single-mode 1×N and 2×N
non-wavelength-selective branching devices 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 61753-031-3 has been prepared by subcommittee 86B: Fibre optic
interconnecting devices and passive components, of IEC technical committee 86: Fibre optics.
This second edition of IEC 61753-031-3 cancels and replaces the first edition published in
2009 and constitutes a technical revision.
This edition includes the following significant technical changes with respect to the previous
edition:
a) an updated and extended scope to reflect an introduction of two attenuation and uniformity
performance classes for balanced NWBD instead of branching device technologies on the
market;
– 4 – IEC 61753-031-3:2014 © IEC 2014
b) an updated list of normative references;
c) a more simplified introduction to the two types of spectral bands;
d) Clause 5, Performance requirements, has been updated and extended to reflect the
introduction of two attenuation and uniformity performance classes for balanced NWBD;
e) simplified test items to exclude tests for damp heat (steady state) and impact for
performance requirements;
f) Annexe A has been changed to introduce the calculated and minimum requirements for
attenuation and uniformity;
g) Annex B has been updated to reflect revised performance requirements.
The text of this standard is based on the following documents:
FDIS Report on voting
86B/3792/FDIS 86B/3824/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.
IEC 61753 consists of the following parts, under the general title Fibre optic interconnecting
devices and passive components – Performance standard.
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.

IEC 61753-031-3:2014 © IEC 2014 – 5 –
FIBRE OPTIC INTERCONNECTING
DEVICES AND PASSIVE COMPONENTS –
PERFORMANCE STANDARD –
Part 031-3: Non-connectorized single-mode 1×N and 2×N
non-wavelength-selective branching devices for Category U –
Uncontrolled environment
1 Scope
This part of IEC 61753 contains the minimum initial tests and measurement requirements and
severities which a non-wavelength selective branching device (NWBD) should satisfy in order
to be categorized as meeting the requirements of this standard.
The requirements cover balanced bidirectional non-connectorized single-mode 1 × N and
2 × N non-wavelength-selective branching devices for use in an IEC category U environment
(N is the number of branching ports), especially but not exclusively used for PON application.
For balanced NWBD two attenuation and uniformity performance classes are considered:
class A (premium class) which meets more restrictive requirements (i.e. for extended reach
PON application) and class B (standard class) for standard application (i.e. for normal reach
PON application).
The requirements also cover unbalanced, bidirectional, non-connectorized, single-mode, non-
wavelength-selective branching devices; however, the specifications of unbalanced branching
devices are limited to 1 × 2 and 2 × 2 devices because they are the most commonly used.
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 60793-2-50:2012, 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 61300-2-4, Fibre optic interconnecting devices and passive components – Basic test and
measurement procedures – Part 2-4: Tests – Fibre/cable retention
IEC 61300-2-5, Fibre optic interconnecting devices and passive components – Basic test and
measurement procedures – Part 2-5: Tests – Torsion
IEC 61300-2-9, Fibre optic interconnecting devices and passive components – Basic test and
measurement procedures – Part 2-9: Tests – Shock
IEC 61300-2-14, Fibre optic interconnecting devices and passive components – Basic test
and measurement procedures – Part 2-14: Tests – High optical power

– 6 – IEC 61753-031-3:2014 © IEC 2014
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
IEC 61300-2-44, Fibre optic interconnecting devices and passive components – Basic test
and measur
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