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

General Information

Status
Published
Public Enquiry End Date
22-Apr-2021
Publication Date
08-May-2022
Technical Committee
Current Stage
6060 - National Implementation/Publication (Adopted Project)
Start Date
06-May-2022
Due Date
11-Jul-2022
Completion Date
09-May-2022

RELATIONS

Buy Standard

Standard
SIST EN 50411-3-6:2022
English language
20 pages
sale 10% off
Preview
sale 10% off
Preview
e-Library read for
1 day
Draft
oSIST prEN 50411-3-6:2021
English language
20 pages
sale 10% off
Preview
sale 10% off
Preview
e-Library read for
1 day

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.

---------------------- Page: 1 ----------------------
SIST EN 50411-3-6:2022
---------------------- Page: 2 ----------------------
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
---------------------- Page: 3 ----------------------
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

---------------------- Page: 4 ----------------------
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.
---------------------- Page: 5 ----------------------
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 :
wavelengths: grades:
≤ 0,25 dB max. for ≥ 97 % of
connections
≤ 0,12 dB average
Grade B :
≤ 0,6 dB max. for ≥ 97 % of
connections
≤ 0,3 dB average
Grade C :
≤ 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
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
---------------------- Page: 6 ----------------------
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.
---------------------- Page: 7 ----------------------
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)
---------------------- Page: 8 ----------------------
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.

---------------------- Page: 1 ----------------------
oSIST prEN 50411-3-6:2021
---------------------- Page: 2 ----------------------
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.

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.

Recipients of this draft are invited to submit, with their comments, notification of any relevant patent rights of which they are aware and to

provide supporting documentation.

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
---------------------- Page: 3 ----------------------
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

---------------------- Page: 4 ----------------------
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.
---------------------- Page: 5 ----------------------
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
wavelength: (97 %) ≤ 0,12 dB average (50 %)
Grade B : ≤ 0,6 dB maximum
(97 %) ≤ 0,3 dB average (50 %)
Fibre category: EN IEC 60793-2-10 types Return loss grades: Grade 2 : ≥ 20 dB
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
---------------------- Page: 6 ----------------------
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)
---------------------- Page: 7 ----------------------
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)

---------------------- Page: 8 ----------------------
oSIST prEN 50411-3-6:2021
prEN 50411-3-6:2021 (E)
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
...

Questions, Comments and Discussion

Ask us and Technical Secretary will try to provide an answer. You can facilitate discussion about the standard in here.