SIST EN 50411-3-6:2022

Fibre management systems and protective housings to be used in optical fibre communication systems - Product specifications - Part 3-6: Multi- mode mechanical fibre splice

1.1   Product definition
This document contains the initial, start of life dimensional, optical, mechanical and environmental performance requirements, which multimode mechanical splice needs to meet in order for it to be categorized as a European standard product.
Although, in this document, the product is qualified for EN IEC 60793 2 10 types A1-OM1, A1-OM2, A1-OM3, A1-OM4 and A1-OM5 multimode fibres, it can also be suitable for other fibre types with 125 µm cladding diameter.
1.2   Interoperability
The installed mechanical splice fits into optical fibre management system with optical splice cassettes or splice trays as defined in EN IEC 61756 1. This document specifies the following two physical interface dimensions:
—   cross sectional profile with width, height or diameter (in millimetres);
—   length (in millimetres).
1.3   Expected performance
In this document, the performance of the mechanical splice is given with identical fibres only as specified in Annex A. Losses associated with tolerances in fibre cladding diameter and core diameter mismatch are not taken into account. The measured attenuation is a function of the core concentricity, cladding non-circularity and alignment capability. The optical return loss performance is a function of the index matching gel and the fibre end face preparation
1.4   Operating environment
The tests selected combined with the severities and durations are representative of an outdoor enclosed environment category OP as defined in EN IEC 61753 1:2018, Table A.5. To ensure that the product can be used in outdoor closures, boxes or street cabinets for categories A, G or S (as defined in EN IEC 61753 1:2018, Tables A.13, A.14 and A.15) the specified lower temperature is extended to −40 °C and a water immersion requirement for temporary flooding conditions has been added.
1.5   Reliability
Whilst the anticipated service life expectancy of the product in this environment is at least 20 years, compliance with this specification does not guarantee the reliability of the product. This is expected to be predicted using a recognized reliability assessment programme.
1.6   Quality assurance
Compliance with this specification does not guarantee the manufacturing consistency of the product. This is expected to be maintained using a recognized quality assurance programme.

LWL-Spleißkassetten und -Muffen für die Anwendung in LWL Kommunikationssystemen - Produktnorm - Teil 3-6: Mechanische Spleiße von Mehrmoden-Faser für geschützte Freiluftanwendungen (Kategorie U)

Systèmes de gestion des fibres et boîtiers de protection destinés à être utilisés dans les systèmes de communication par fibres optiques - Spécifications de produits - Partie 3-6: Epissure mécanique de fibres multimodales

1.1   Définition du produit
Le présent document contient les exigences de performances initiales, dimensionnelles, optiques, mécaniques et environnementales, de début de vie, auxquelles une épissure mécanique multimodale est tenue de satisfaire, afin d’être classée comme produit conforme à une norme EN.
Bien que, dans le présent document, le produit soit qualifié pour des fibres multimodales de types A1-OM1, A1-OM2, A1-OM3, A1-OM4 et A1-OM5 de l’EN IEC 60793 2 10, il peut également convenir à d’autres types de fibres de diamètre de gaine 125 µm.
1.2   Interopérabilité
Les épissures mécaniques installées s’adaptent à un système de gestion de fibres optiques avec des cassettes ou des plateaux d’épissures de fibres optiques tels que définis dans l’EN IEC 61756 1. Le présent document spécifie les deux dimensions d’interface physique suivantes:
—   profil transversal avec largeur, hauteur ou diamètre (en millimètres);
—   longueur (en millimètres).
1.3   Performance attendue
Dans le présent document, la performance d’une épissure mécanique est donnée uniquement avec des fibres identiques, comme spécifié dans l’Annexe A. Les pertes associées aux tolérances sur le diamètre de la gaine de fibre et le défaut d’adaptation du diamètre de jonc ne sont pas prises en compte. L’affaiblissement mesuré dépend de la concentricité du cœur, de la non-circularité de la gaine et de la capacité d’alignement. La performance de l’affaiblissement de réflexion optique dépend du gel permettant de conserver l’indice et de la préparation de l’extrémité de la fibre
1.4   Environnement de fonctionnement
Les essais choisis combinés avec les sévérités et les durées sont représentatifs de l’environnement extérieur enfermé défini comme catégorie OP dans l’EN IEC 61753 1:2018, Tableau A.5. Afin d’assurer que le produit puisse être utilisé dans des boîtiers extérieurs, des boîtes ou des armoires d’environnement urbain pour les catégories A, G et S (telles que définies dans l’EN IEC 61753 1:2018, dans les Tableaux A.13, A.14 et A.15), la température inférieure spécifiée est étendue à -40 °C, et des exigences relatives à l’immersion dans l’eau en cas d’inondation temporaire ont été ajoutées.
1.5   Fiabilité
Tandis que l’espérance de vie du produit en service prévue dans cet environnement est d’au moins 20 ans, la conformité à la présente spécification ne garantit pas la fiabilité du produit. Il est attendu que celle-ci soit estimée en utilisant un programme reconnu d’évaluation de la fiabilité.
1.6   Assurance de la qualité
La conformité à la présente spécification ne garantit pas la cohérence de fabrication du produit. Il est attendu qu’elle soit suivie au moyen d’un programme reconnu d’assurance de la qualité.

Sistemi za upravljanje z optičnimi vlakni in zaščitna ohišja za optične komunikacijske sisteme - Specifikacije izdelka - 3-6. del: Mnogorodovna mehanska optična spojnica

1.1   Opredelitev izdelka
Ta dokument vsebuje začetne dimenzijske, optične, mehanske in okoljske zahteve, ki jih mora na začetku svoje življenjske dobe izpolnjevati večrodna mehanska spojnica, da se lahko kategorizira kot izdelek v skladu z evropskim standardom.
Čeprav je izdelek v tem dokumentu kvalificiran za tipe večrodnih vlaken A1-OM1, A1-OM2, A1-OM3, A1-OM4 in A1-OM5 v skladu s standardom EN IEC 60793-2-10, je morda primeren tudi za druge vrste vlaken s premerom obloge 125 µm.
1.2   Interoperabilnost
Vgrajena mehanska spojnica se prilega sistemu za upravljanje optičnih vlaken s kasetami ali pladnji s spojnicami, kot je opredeljeno v standardu EN IEC 61756 1. Ta dokument določa naslednji dve dimenziji fizičnega vmesnika:
–   prečni profil s širino, višino ali premerom (v milimetrih);
–   dolžino (v milimetrih).
1.3   Pričakovana zmogljivost
V tem dokumentu je zmogljivost mehanske spojnice podana samo z enakimi vlakni, kot je določeno v dodatku A. Izgube, povezane s tolerancami premera oplaščenih vlaken in neusklajenostjo premera jedra, se ne upoštevajo. Izmerjeno slabljenje je funkcija koncentričnosti jedra, neokrožnosti obloge in sposobnosti poravnave. Zmogljivost optične povratne izgube je funkcija gela za ujemanje indeksa in priprave končne površine vlakna.
1.4   Delovno okolje
Izbrani preskusi v kombinaciji z resnostjo in trajanjem so reprezentativni za kategorijo zaprtega zunanjega okolja OP, kot je opredeljeno v preglednici A.5. standarda EN IEC 61753-1:2018. Za zagotovitev, da je izdelek mogoče uporabljati v zunanjih ohišjih, škatlah ali uličnih omaricah za kategorije A, G ali S (kot je opredeljeno v preglednicah A.13, A.14 in A.15 standarda EN IEC 61753-1:2018), je razpon najnižje temperature razširjen na –40 °C in dodana je bila zahteva v zvezi s potopitvijo v vodo za začasne poplavne razmere.
1.5   Zanesljivost
Medtem ko znaša pričakovana tehnična življenjska doba izdelka v tem okolju vsaj 20 let, skladnost s to specifikacijo ne zagotavlja zanesljivosti izdelka. Pričakuje se, da naj bi to napovedali v okviru priznanega programa za oceno zanesljivosti.
1.6   Zagotavljanje kakovosti
Skladnost s to specifikacijo ne zagotavlja doslednosti izdelave izdelka. Pričakuje se, da naj bi to vzdrževali v okviru priznanega programa za zagotavljanje kakovosti.

General Information

• Status: Published
• Public Enquiry End Date: 22-Apr-2021
• Publication Date: 08-May-2022
• ICS: 33.180.20 - Fibre optic interconnecting devices
• Technical Committee: MOC - Mobile Communications
• Current Stage: 6060 - National Implementation/Publication (Adopted Project)
• Start Date: 06-May-2022
• Due Date: 11-Jul-2022
• Completion Date: 09-May-2022
• Ref Project: EN 50411-3-6:2022 - Fibre management systems and protective housings to be used in optical fibre communication systems - Product specifications - Part 3-6: Multi- mode mechanical fibre splice

Relations

• Revised: SIST EN 50411-3-6:2013 - Fibre organisers and closures to be used in optical fibre communication systems - Product specifications - Part 3-6: Multimode mechanical fibre splice
• Effective Date: 11-Dec-2018
• Replaces: SIST EN 50411-3-6:2013 - Fibre organisers and closures to be used in optical fibre communication systems - Product specifications - Part 3-6: Multimode mechanical fibre splice
• Effective Date: 03-May-2022

Standards Content (Sample)

SLOVENSKI STANDARD
SIST EN 50411-3-6:2022
01-junij-2022
Nadomešča:
SIST EN 50411-3-6:2013
Sistemi za upravljanje z optičnimi vlakni in zaščitna ohišja za optične
komunikacijske sisteme - Specifikacije izdelka - 3-6. del: Mnogorodovna mehanska
optična spojnica
Fibre management systems and protective housings to be used in optical fibre
communication systems - Product specifications - Part 3-6: Multi- mode mechanical fibre
splice
LWL-Spleißkassetten und -Muffen für die Anwendung in LWL Kommunikationssystemen
- Produktnorm - Teil 3-6: Mechanische Spleiße von Mehrmoden-Faser für geschützte
Freiluftanwendungen (Kategorie U)
Systèmes de gestion des fibres et boîtiers de protection destinés à être utilisés dans les
systèmes de communication par fibres optiques - Spécifications de produits - Partie 3-6:
Epissure mécanique de fibres multimodales
Ta slovenski standard je istoveten z: EN 50411-3-6:2022
ICS:
33.180.20 Povezovalne naprave za Fibre optic interconnecting
optična vlakna devices
SIST EN 50411-3-6:2022 en
2003-01.Slovenski inštitut za standardizacijo. Razmnoževanje celote ali delov tega standarda ni dovoljeno.

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SIST EN 50411-3-6:2022

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SIST EN 50411-3-6:2022


EUROPEAN STANDARD EN 50411-3-6

NORME EUROPÉENNE

EUROPÄISCHE NORM April 2022
ICS 33.180.20 Supersedes EN 50411-3-6:2013 and all of its
amendments and corrigenda (if any)
English Version
Fibre management systems and protective housings to be used
in optical fibre communication systems - Product specifications -
Part 3-6: Multi- mode mechanical fibre splice
Systèmes de gestion des fibres et boîtiers de protection LWL-Spleißkassetten und -Muffen für die Anwendung in
destinés à être utilisés dans les systèmes de LWL Kommunikationssystemen - Produktnorm - Teil 3-6:
communication par fibres optiques - Spécifications de Mechanische Spleiße von Mehrmoden-Faser für geschützte
produits - Partie 3-6: Epissure mécanique de fibres Freiluftanwendungen (Kategorie U)
multimodales
This European Standard was approved by CENELEC on 2022-03-14. CENELEC members are bound to comply with the CEN/CENELEC
Internal Regulations which stipulate the conditions for giving this European Standard the status of a national standard without any alteration.
Up-to-date lists and bibliographical references concerning such national standards may be obtained on application to the CEN-CENELEC
Management Centre or to any CENELEC member.
This European Standard exists in three official versions (English, French, German). A version in any other language made by translation
under the responsibility of a CENELEC member into its own language and notified to the CEN-CENELEC Management Centre has the
same status as the official versions.
CENELEC members are the national electrotechnical committees of Austria, Belgium, Bulgaria, Croatia, Cyprus, the Czech Republic,
Denmark, Estonia, Finland, France, Germany, Greece, Hungary, Iceland, Ireland, Italy, Latvia, Lithuania, Luxembourg, Malta, the
Netherlands, Norway, Poland, Portugal, Republic of North Macedonia, Romania, Serbia, Slovakia, Slovenia, Spain, Sweden, Switzerland,
Turkey and the United Kingdom.



European Committee for Electrotechnical Standardization
Comité Européen de Normalisation Electrotechnique
Europäisches Komitee für Elektrotechnische Normung
CEN-CENELEC Management Centre: Rue de la Science 23, B-1040 Brussels
© 2022 CENELEC All rights of exploitation in any form and by any means reserved worldwide for CENELEC Members.
 Ref. No. EN 50411-3-6:2022 E

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SIST EN 50411-3-6:2022
EN 50411-3-6:2022 (E)
Contents Page
European foreword . 3
Introduction . 4
1 Scope . 5
1.1 Product definition . 5
1.2 Interoperability . 5
1.3 Expected performance . 5
1.4 Operating environment . 5
1.5 Reliability . 5
1.6 Quality assurance . 5
2 Normative references . 6
3 Terms and definitions . 7
4 Description . 7
4.1 General . 7
4.2 Mechanical splice . 7
4.3 Materials. 8
4.4 Dimensions . 8
4.5 Colour and marking . 8
5 Variants . 8
6 Dimensional requirements . 9
7 Tests . 10
7.1 Introduction . 10
7.2 Test sample preparation . 10
7.3 Test and measurement methods . 10
7.4 Pass/fail criteria . 10
8 Test report . 11
9 Performance requirements . 11
9.1 Dimensional and marking requirements . 11
9.2 Assembly yield requirement . 11
9.3 Pass/fail criteria . 11
9.4 Optical performance requirements . 12
Annex A (normative) Fibre type for test sample. 18
Annex B (normative) Sample size and product sourcing requirements . 19
Bibliography . 20
2

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SIST EN 50411-3-6:2022
EN 50411-3-6:2022 (E)
European foreword
This document (EN 50411-3-6:2022) has been prepared by CLC/TC 86BXA “Fibre optic interconnect, passive
and connectorised components”.
The following dates are fixed:
• latest date by which this document has to be (dop) 2023-03-14
implemented at national level by publication of
an identical national standard or by
endorsement
• latest date by which the national standards (dow) 2023-03-14
conflicting with this document have to be
withdrawn
This document supersedes EN 50411-3-6:2013 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.
EN 50411-3-6:2022 includes the following significant technical changes with respect to EN 50411-3-6:2013:
— terms and definitions are added;
— the EN 61753-1:2007 category U tests and test severities are replaced by the EN IEC 61753-1:2018
category OP test and test severities;
— the references are updated.
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.
3

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SIST EN 50411-3-6:2022
EN 50411-3-6:2022 (E)
Introduction
Fibre management systems and protective housings to be used in optical fibre communication
systems - Product specifications
Part 3–6: Multimode mechanical fibre splice
Description Performance
Type: Fibre splice Application: EN IEC 61753-1, Category OP
Style: Mechanical with extension of lower temperature to
−40 °C
Operating 850 nm and/or 1 300 nm Attenuation Grade A :
m
wavelengths: grades:
≤ 0,25 dB max. for ≥ 97 % of
connections
≤ 0,12 dB average
Grade B :
m
≤ 0,6 dB max. for ≥ 97 % of
connections
≤ 0,3 dB average
Grade C :
m
≤ 1,0 dB max. for ≥ 97 % of connections
≤ 0,5 dB average
Fibre category: EN IEC 60793-2-10 types Return loss Grade 2 : ≥ 20 dB
m
A1-OM1, A1-OM2, A1-OM3, grades:
A1-OM4 and A1-OM5
Related documents:
EN IEC 60793-2-10 Optical fibres – Part 2–10: Product specifications - Sectional specification for
category A1 multimode fibres (IEC 60793-2-10)
EN 60794-2-50:2008 Optical fibre cables – Part 2–50: Indoor cables – Family specification for simplex
and duplex cables for use in terminated cable assemblies (IEC 60794-2-50:2008)
EN 61300 series Fibre optic interconnecting devices and passive components – Basic test and
measurement procedures (IEC 61300 series)
EN IEC 61753-1 Fibre optic interconnecting devices and passive components – Performance
standard – Part 1: General and guidance (IEC 61753-1)
Outline and nominal dimensions:
Variant Dimension Dimension Dimension
W H L
mm mm mm
Type M1 3,8 6,4 38
Type M2 4,0 4,0 36
Type M3 3,2 3,2 46
Type M4 4,2 4,2 44
Type M5 4,0 4,0 40

Type M6 Ø 5,0 65
4

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SIST EN 50411-3-6:2022
EN 50411-3-6:2022 (E)
1 Scope
1.1 Product definition
This document contains the initial, start of life dimensional, optical, mechanical and environmental performance
requirements, which multimode mechanical splice needs to meet in order for it to be categorized as a European
standard product.
Although, in this document, the product is qualified for EN IEC 60793-2-10 types A1-OM1, A1-OM2, A1-OM3,
A1-OM4 and A1-OM5 multimode fibres, it can also be suitable for other fibre types with 125 µm cladding
diameter.
1.2 Interoperability
The installed mechanical splice fits into optical fibre management system with optical splice cassettes or splice
trays as defined in EN IEC 61756-1. This document specifies the following two physical interface dimensions:
— cross sectional profile with width, height or diameter (in millimetres);
— length (in millimetres).
1.3 Expected performance
In this document, the performance of the mechanical splice is given with identical fibres only as specified in
Annex A. Losses associated with tolerances in fibre cladding diameter and core diameter mismatch are not
taken into account. The measured attenuation is a function of the core concentricity, cladding non-circularity
and alignment capability. The optical return loss performance is a function of the index matching gel and the
fibre end face preparation
1.4 Operating environment
The tests selected combined with the severities and durations are representative of an outdoor enclosed
environment category OP as defined in EN IEC 61753-1:2018, Table A.5. To ensure that the product can be
used in outdoor closures, boxes or street cabinets for categories A, G or S (as defined in EN IEC 61753-1:2018,
Tables A.13, A.14 and A.15) the specified lower temperature is extended to −40 °C and a water immersion
requirement for temporary flooding conditions has been added.
1.5 Reliability
Whilst the anticipated service life expectancy of the product in this environment is at least 20 years, compliance
with this specification does not guarantee the reliability of the product. This is expected to be predicted using a
recognized reliability assessment programme.
1.6 Quality assurance
Compliance with this specification does not guarantee the manufacturing consistency of the product. This is
expected to be maintained using a recognized quality assurance programme.
5

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SIST EN 50411-3-6:2022
EN 50411-3-6:2022 (E)
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.
EN IEC 60793-2-10, Optical fibres - Part 2-10: Product specifications - Sectional specification for category A1
multimode fibres(IEC 60793-2-10)
EN 61300-1, Fibre optic interconnecting devices and passive components - Basic test and measurement
procedures - Part 1: General and guidance (IEC 61300 1)
EN 61300-2-1, Fibre optic interconnecting devices and passive components - Basic test and measurement
procedures - Part 2-1: Tests - Vibration (sinusoidal) (IEC 61300 2 1)
EN 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 4)
EN 61300-2-5, Fibre optic interconnecting devices and passive components - Basic test and measurement
procedures - Part 2-5: Tests – Torsion (IEC 61300 2 5)
EN 61300-2-7, Fibre optic interconnecting devices and passive components - Basic test and measurement
procedures - Part 2-7: Tests - Bending moment (IEC 61300 2 7)
EN 61300-2-9, Fibre optic interconnecting devices and passive components - Basic test and measurement
procedures - Part 2-9: Tests - Shock (IEC 61300 2 9)
EN 61300-2-17, Fibre optic interconnecting devices and passive components - Basic test and measurement
procedures - Part 2-17: Tests - Cold (IEC 61300 2 17)
EN 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 18)
EN 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 22)
EN 61300-2-26, Fibre optic interconnecting devices and passive components - Basic test and measurement
procedures - Part 2-26: Tests - Salt mist (IEC 61300 2 26)
EN 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 27)
EN 61300-2-33, Fibre optic interconnecting devices and passive components - Basic test and measurement
procedures - Part 2-33: Tests - Assembly and disassembly of fibre optic mechanical splices, fibre management
systems and closures (IEC 61300 2 33)
EN 61300-2-45, Fibre optic interconnecting devices and passive components - Basic test and measurement
procedures - Part 2-45: Tests - Durability test by water immersion (IEC 61300 2 45)
EN 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 46)
EN 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 3)
6

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SIST EN 50411-3-6:2022
EN 50411-3-6:2022 (E)
EN 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 4)
EN 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 6)
EN 61300-3-28, Fibre optic interconnecting devices and passive components - Basic test and measurement
procedures - Part 3-28: Examinations and measurements - Transient loss (IEC 61300 3 28)
3 Terms and definitions
For the purposes of this document, the following terms and definitions apply.
ISO and IEC maintain terminological databases for use in standardization at the following addresses:
— IEC Electropedia: available at https://www.electropedia.org/
— ISO Online browsing platform: available at https://www.iso.org/obp
3.1
fibre splice
permanent or separable joint the purpose of which is to couple optical power between two optical fibres,
achieved by either a fusion or a mechanical technique
[SOURCE: IEV 731-05-05 modified]
4 Description
4.1 General
A multimode mechanical fibre splice is a passive optical interconnection component, which provides optical and
mechanical continuity between two optical fibres or cables. The products described in this specification are
based on mechanical alignment of two cleaved fibres. The fibres are protected against ingress of dust or water
by a sealing material, generally an index matching gel, to both minimize reflections and to improve attenuation
at the glass/gel/glass interface.
Some splices could have a limited reinstallation capability. In this case the re-installability shall be clearly stated
and the re-installation test 7 of Table 4 in 9.4 shall be conducted.
4.2 Mechanical splice
An optical fibre mechanical splice body contains the following pre-assembled elements:
— an alignment device;
— a sealing and index matching gel inside;
— a fibre alignment activation device like a spring, w
...

SLOVENSKI STANDARD
oSIST prEN 50411-3-6:2021
01-april-2021
Sistemi za upravljanje z optičnimi vlakni in zaščitna ohišja za optične
komunikacijske sisteme - Specifikacije izdelka - 3-6. del: Mnogorodovna mehanska
optična spojnica
Fibre management systems and protective housings to be used in optical fibre
communication systems - Product specifications - Part 3-6: Multi- mode mechanical fibre
splice
Systèmes de gestion des fibres et boîtiers de protection destinés à être utilisés dans les
systèmes de communication par fibres optiques - Spécifications de produits - Partie 3-6:
Epissure mécanique de fibres multimodales
Ta slovenski standard je istoveten z: prEN 50411-3-6
ICS:
33.180.20 Povezovalne naprave za Fibre optic interconnecting
optična vlakna devices
oSIST prEN 50411-3-6:2021 en
2003-01.Slovenski inštitut za standardizacijo. Razmnoževanje celote ali delov tega standarda ni dovoljeno.

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oSIST prEN 50411-3-6:2021

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oSIST prEN 50411-3-6:2021

EUROPEAN STANDARD DRAFT
prEN 50411-3-6
NORME EUROPÉENNE

EUROPÄISCHE NORM

January 2021
ICS  Will supersede EN 50411-3-6:2013 and all of its
amendments and corrigenda (if any)
English Version
Fibre management systems and protective housings to be used
in optical fibre communication systems - Product specifications -
Part 3-6: Multi- mode mechanical fibre splice
Systèmes de gestion des fibres et boîtiers de protection To be completed
destinés à être utilisés dans les systèmes de
communication par fibres optiques - Spécifications de
produits - Partie 3-6: Epissure mécanique de fibres
multimodales
This draft European Standard is submitted to CENELEC members for enquiry.
Deadline for CENELEC: 2021-04-23.

It has been drawn up by CLC/TC 86BXA.

If this draft becomes a European Standard, 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.

This draft European Standard was established by CENELEC 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.

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Recipients of this draft are invited to submit, with their comments, notification of any relevant patent rights of which they are aware and to
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Warning : This document is not a European Standard. It is distributed for review and comments. It is subject to change without notice and
shall not be referred to as a European Standard.



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
© 2021 CENELEC All rights of exploitation in any form and by any means reserved worldwide for CENELEC Members.
Project: 68682 Ref. No. prEN 50411-3-6 E

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oSIST prEN 50411-3-6:2021
prEN 50411-3-6:2021 (E)
Contents Page
European foreword . 3
1 Scope . 5
1.1 Product definition . 5
1.2 Interoperability . 5
1.3 Expected performance . 5
1.4 Operating environment . 5
1.5 Reliability . 5
1.6 Quality assurance . 5
2 Normative references . 5
3 Terms and definitions . 7
4 Description . 7
4.1 General . 7
4.2 Mechanical splice . 7
4.3 Materials. 7
4.4 Dimensions . 8
4.5 Colour and marking . 8
5 Variants . 8
6 Dimensional requirements . 9
7 Tests . 9
7.1 Introduction . 9
7.2 Test sample preparation . 10
7.3 Test and measurement methods . 10
7.4 Pass/fail criteria . 10
8 Test report . 10
9 Performance requirements . 10
9.1 Dimensional and marking requirements . 10
9.2 Assembly yield requirement . 10
9.3 Optical performance requirements . 11
Annex A (normative) Fibre type for test sample . 18
Annex B (normative) Sample size and product sourcing requirements . 19
Bibliography . 20
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oSIST prEN 50411-3-6:2021
prEN 50411-3-6:2021 (E)
European foreword
This document (prEN 50411-3-6:2021) has been prepared by CLC/TC 86BXA “Fibre optic interconnect,
passive and connectorised components”.
This document is currently submitted to the Enquiry.
The following dates are proposed:
• latest date by which the existence of this (doa) dor + 6 months
document has to be announced at national
level
• latest date by which this document has to be (dop) dor + 12 months
implemented at national level by publication of
an identical national standard or by
endorsement
• latest date by which the national standards (dow) dor + 12 months
conflicting with this document have to be (to be confirmed or
withdrawn modified when voting)
This document will supersede EN 50411-3-6:2013 and all of its amendments and corrigenda (if any).
prEN 50411-3-6:2021 includes the following significant technical changes with respect to EN 50411-3-6:2013:
— terms and definitions are added;
— the EN 61753-1:2007 category U tests and test severities are replaced by the EN IEC 61753-1:2018
category OP test and test severities;
— the references are updated.
3

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oSIST prEN 50411-3-6:2021
prEN 50411-3-6:2021 (E)
Fibre management systems and protective housings to be used in optical fibre communication
systems - Product specifications
Part 3–6: Multimode mechanical fibre splice
Description Performance
Type: Fibre splice Application: EN IEC 61753-1, Category OP
Style: Mechanical with extension of lower temperature
to −40 °C
Operating 850 nm to 1 300 nm Attenuation grades: Grade A : ≤ 0,25 dB maximum
m
wavelength: (97 %) ≤ 0,12 dB average (50 %)
Grade B : ≤ 0,6 dB maximum
m
(97 %) ≤ 0,3 dB average (50 %)
Fibre category: EN IEC 60793-2-10 types Return loss grades: Grade 2 : ≥ 20 dB
m
A1-OM1, A1-OM2, A1-

OM3, A1-OM4 and A1-
OM5
Related documents:
EN IEC 60793-2-10 Optical fibres – Part 2–10: Product specifications - Sectional specification for
category A1 multimode fibres (IEC 60793-2-10)
EN 60794-2-50:2008 Optical fibre cables – Part 2–50: Indoor cables – Family specification for simplex and
duplex cables for use in terminated cable assemblies (IEC 60794-2-50:2008)
EN 61300 series Fibre optic interconnecting devices and passive components – Basic test and
measurement procedures (IEC 61300 series)
EN IEC 61753-1:2018 Fibre optic interconnecting devices and passive components performance standard –
Part 1: General and guidance for performance standards (IEC 61753-1:2018)
Outline and nominal dimensions:
Dimension Dimension Dimension
Variant
W H L
mm mm mm
Type M1 3,8 6,4 38
Type M2 4,0 4,0 36
Type M3 3,2 3,2 46
4,2 4,2 44
Type M4
Type M5 4,0 4,0 40

Type M6 Ø 5,0 65
4

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oSIST prEN 50411-3-6:2021
prEN 50411-3-6:2021 (E)
1 Scope
1.1 Product definition
This document contains the initial, start of life dimensional, optical, mechanical and environmental
performance requirements, which multimode mechanical splice needs to meet in order for it to be categorized
as a European standard product.
Although, in this document, the product is qualified for EN IEC 60793-2-10 types A1-OM1, A1-OM2, A1-OM3,
A1-OM4 and A1-OM5 multimode fibres, it can also be suitable for other fibre types with 125 µm cladding
diameter.
1.2 Interoperability
The installed mechanical splice fits into optical fibre management system with optical splice cassettes or splice
trays as defined in EN IEC 61756-1. This document specifies the following two physical interface dimensions:
— cross sectional profile with width, height or diameter (in millimetres);
— length (in millimetres).
1.3 Expected performance
In this document, the performance of the mechanical splice is given with identical fibres only as specified in
Annex A. Losses associated with tolerances in fibre cladding diameter and core diameter mismatch are not
taken into account. The measured attenuation is a function of the core concentricity, cladding non-circularity
and alignment capability. The optical return loss performance is a function of the index matching gel and the
fibre end face preparation
1.4 Operating environment
The tests selected combined with the severities and durations are representative of an outdoor enclosed
environment category OP as defined in EN IEC 61753-1:2018, Table A.5. To ensure that the product can be
used in outdoor closures, boxes or street cabinets for categories A, G or S (as defined in
EN IEC 61753-1:2018, Tables A.13, A.14 and A.15) the specified lower temperature is extended to −40 °C and
a water immersion requirement for temporary flooding conditions has been added.
1.5 Reliability
Whilst the anticipated service life expectancy of the product in this environment is at least 20 years,
compliance with this specification does not guarantee the reliability of the product. This is expected to be
predicted using a recognized reliability assessment programme.
1.6 Quality assurance
Compliance with this specification does not guarantee the manufacturing consistency of the product. This is
expected to be maintained using a recognized quality assurance programme.
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.
EN IEC 60793-2-10, Optical fibres - Part 2-10: Product specifications - Sectional specification for category A1
multimode fibres (IEC 60793-2-10)
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oSIST prEN 50411-3-6:2021
prEN 50411-3-6:2021 (E)
EN 61300-1, Fibre optic interconnecting devices and passive components - Basic test and measurement
procedures - Part 1: General and guidance (IEC 61300-1)
EN 61300-2-1, Fibre optic interconnecting devices and passive components - Basic test and measurement
procedures - Part 2-1: Tests - Vibration (sinusoidal) (IEC 61300-2-1)
EN 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 61300-2-4)
EN 61300-2-5, Fibre optic interconnecting devices and passive components - Basic test and measurement
procedures - Part 2-5: Tests - Torsion (IEC 61300-2-5)
EN 61300-2-7, Fibre optic interconnecting devices and passive components - Basic test and measurement
procedures - Part 2-7: Tests - Bending moment (IEC 61300-2-7)
EN 61300-2-9, Fibre optic interconnecting devices and passive components - Basic test and measurement
procedures - Part 2-9: Tests - Shock (IEC 61300-2-9)
EN 61300-2-17, Fibre optic interconnecting devices and passive components - Basic test and measurement
procedures - Part 2-17: Tests - Cold (IEC 61300-2-17)
EN 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 61300-2-18)
EN 61300-2-22, Fibre optic interconnecting devices and passive components - Basic test and measurement
procedures - Part 2-22: Tests - Change of temperature (IEC 61300-2-22)
EN 61300-2-26, Fibre optic interconnecting devices and passive components - Basic test and measurement
procedures - Part 2-26: Tests - Salt mist (IEC 61300-2-26)
EN 61300-2-27, Fibre optic interconnecting devices and passive components - Basic test and measurement
procedures - Part 2-27: Tests - Dust - Laminar flow (IEC 61300-2-27)
EN 61300-2-33, Fibre optic interconnecting devices and passive components - Basic test and measurement
procedures - Part 2-33: Tests - Assembly and disassembly of fibre optic mechanical splices, fibre management
systems and closures (IEC 61300-2-33)
EN 61300-2-45, Fibre optic interconnecting devices and passive components - Basic test and measurement
procedures - Part 2-45: Tests - Durability test by water immersion (IEC 61300-2-45)
EN IEC 61300-2-46, Fibre optic interconnecting devices and passive components - Basic test and
measurement procedures - Part 2-46: Tests - Damp heat, cyclic (IEC 61300-2-46)
EN 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 61300-3-3)
EN 61300-3-4, Fibre optic interconnecting devices and passive components - Basic test and measurement
procedures - Part 3-4: Examinations and measurements - Attenuation (IEC 61300-3-4)
EN 61300-3-6, Fibre optic interconnecting devices and passive components - Basic test and measurement
procedures - Part 3-6: Examinations and measurements - Return loss (IEC 61300-3-6)
EN 61300-3-28, Fibre optic interconnecting devices and passive components - Basic test and measurement
procedures - Part 3-28: Examinations and measurements - Transient loss (IEC 61300-3-28)
6

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oSIST prEN 50411-3-6:2021
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3 Terms and definitions
For the purposes of this document, the following terms and definitions apply.
ISO and IEC maintain terminological databases for use in standardization at the following addresses:
— IEC Electropedia: available at http://www.electropedia.org/
— ISO Online browsing platform: available at https://www.iso.org/obp
3.1
fibre splice
permanent or separable joint the purpose of which is to couple optical power between two optical fibres,
achieved by either a fusion or a mechanical technique
[SOURCE: IEV 731-05-05 modified]
4 Description
4.1 General
A multimode mechanical fibre splice is a passive optical interconnection component, which provides optical
and mechanical continuity between two optical fibres or cables. The products described in this specification
are based on mechanical alignment of two cleaved fibres. The fibres are protected against ingress of dust or
water by a sealing material, generally an index matching gel, to both minimize reflections and to improve
attenuation at the glass/gel/glass interface.
Some splices could have a limited reinstallation capability. In this case the re-installability shall be clearly
stated and the re-installation test 10 in 9.3 shall be conducted.
4.2 Mechanical splice
An optical fibre mechanical splice body contains the following pre-assembled elements:
— an alignment device;
— a sealing and index matching gel inside;
— a fibre alignment activ
...