SIST EN 50411-3-2:2011

SLOVENSKI STANDARD
SIST EN 50411-3-2:2011
01-junij-2011
'HOLOQLNL]DRSWLþQDYODNQDLQNDEHOVNHVSRMQLFH]DRSWLþQHNRPXQLNDFLMVNHVLVWHPH
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Fibre organisers and closures to be used in optical fibre communication systems -
Product specifications - Part 3-2: Singlemode mechanical fibre splice
LWL-Spleißkassetten und -Muffen für die Anwendung in LWL Kommunikationssystemen
- Produktnorm - Teil 3-2: Mechanische Spleiße von Einmodenfasern
Organiseurs et boîtiers de fibres destinés à être utilisés dans les systèmes de
communication par fibres optiques - Spécifications de produit - Partie 3-2 : Epissures
mécaniques de fibres unimodales
Ta slovenski standard je istoveten z: EN 50411-3-2:2011
ICS:
33.180.20 3RYH]RYDOQHQDSUDYH]D Fibre optic interconnecting
RSWLþQDYODNQD devices
SIST EN 50411-3-2:2011 en
2003-01.Slovenski inštitut za standardizacijo. Razmnoževanje celote ali delov tega standarda ni dovoljeno.

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SIST EN 50411-3-2:2011

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SIST EN 50411-3-2:2011

EUROPEAN STANDARD
EN 50411-3-2

NORME EUROPÉENNE
March 2011
EUROPÄISCHE NORM

ICS 33.180.20


English version


Fibre organisers and closures to be used in optical fibre communication
systems -
Product specifications -
Part 3-2: Singlemode mechanical fibre splice



Organiseurs et boîtiers de fibres destinés LWL-Spleißkassetten und -Muffen für die
à être utilisés dans les systèmes de Anwendung in LWL
communication par fibres optiques - Kommunikationssystemen -
Spécifications de produit - Produktnorm -
Partie 3-2: Epissures mécaniques de Teil 3-2: Mechanische Spleiße für
fibres unimodales Einmodenfasern





This European Standard was approved by CENELEC on 2011-01-02. CENELEC members are bound to comply
with the CEN/CENELEC Internal Regulations which stipulate the conditions for giving this European Standard
the status of a national standard without any alteration.

Up-to-date lists and bibliographical references concerning such national standards may be obtained on
application to the Central Secretariat or to any CENELEC member.

This European Standard exists in three official versions (English, French, German). A version in any other
language made by translation under the responsibility of a CENELEC member into its own language and notified
to the Central Secretariat has the same status as the official versions.

CENELEC members are the national electrotechnical committees of Austria, Belgium, Bulgaria, Croatia, Cyprus,
the Czech Republic, Denmark, Estonia, Finland, France, Germany, Greece, Hungary, Iceland, Ireland, Italy,
Latvia, Lithuania, Luxembourg, Malta, the Netherlands, Norway, Poland, Portugal, Romania, Slovakia, Slovenia,
Spain, Sweden, Switzerland and the United Kingdom.

CENELEC
European Committee for Electrotechnical Standardization
Comité Européen de Normalisation Electrotechnique
Europäisches Komitee für Elektrotechnische Normung

Management Centre: Avenue Marnix 17, B - 1000 Brussels


© 2011 CENELEC - All rights of exploitation in any form and by any means reserved worldwide for CENELEC members.
Ref. No. EN 50411-3-2:2011 E

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SIST EN 50411-3-2:2011
EN 50411-3-2:2011 – 2 –
Foreword
This European Standard was prepared by the Technical Committee CENELEC TC 86BXA, Fibre optic
interconnect, passive and connectorised components.
The text of the draft was submitted to the formal vote and was approved by CENELEC as EN 50411-3-2 on
2011-01-02.
Attention is drawn to the possibility that some of the elements of this document may be the subject of patent
rights. CEN and CENELEC shall not be held responsible for identifying any or all such patent rights.
The following dates were fixed:

– latest date by which the EN has to be implemented
at national level by publication of an identical
national standard or by endorsement (dop) 2012-01-02

– latest date by which the national standards conflicting
with the EN have to be withdrawn (dow) 2014-01-02
__________

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SIST EN 50411-3-2:2011
– 3 – EN 50411-3-2:2011
Fibre organisers and closures to be used in optical fibre communication systems –
Product specifications
Part 3-2: Singlemode mechanical fibre splice
Description Performance
Type: Fibre splice Application: EN 61753-1:2007, Category U
with extension of lower
Style: Mechanical
temperature to - 40 °C
Operating wavelength: 1 260 nm to 1 625 nm Attenuation grades Grade B:
≤ 0,25 dB maximum (97 %)
Grade C:
≤ 0,50 dB maximum (97 %)
Fibre category EN 60793-2-50 Return loss grades
Grade 1: ≥ 60 dB
Types B1.1 and B1.3
Grade 2: ≥ 45 dB
Grade 3: ≥ 35 dB
Related documents:
EN 60793-2-50 Optical fibres – Part 2-50: Product specifications – Sectional specification for
class B single-mode fibres (IEC 60793-2-50)
EN 60794-2-50 Optical fibre cables – Part 2-50: Indoor cables – Family specification for simplex
and duplex cables for use in terminated cable assemblies (IEC 60794-2-50)
EN 61300 series Fibre optic interconnecting devices and passive components – Basic test and
measurement procedures (IEC 61300 series)
EN 61753-1:2007 Fibre optic interconnecting devices and passive components performance
standard – Part 1: General and guidance for performance standards
(IEC 61753-1:2007)
Outline and maximum dimensions:


Variant Dimension Dimension Dimension
W H L
mm mm mm
L
Type M1 3,8 6,4 38
H
4,0 4,0 36
Type M2
W
Type M3 3,2 3,2 45
Type M4 4,2 4,2 44
Type M5 4,0 4,0 40

Type M6 Ø 5,0 65

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SIST EN 50411-3-2:2011
EN 50411-3-2:2011 – 4 –
Contents
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 Description . 6
3.1 G ener al . 6
3.2 Mechanical splice . 7
3.3 Materials . 7
3.4 Dimensions . 7
3.5 Colour and marking . 7
4 Variants . 8
5 Dimensional requirements . 9
6 Tests . 9
6.1 Introduction . 9
6.2 Test sample preparation . 9
6.3 Test and measurement methods . 10
6.4 Pass/fail criteria . 10
7 Test report . 10
8 Performance requirements . 10
8.1 Dimensional and marking requirements . 10
8.2 Installation yield requirement . 10
8.3 Optical performance requirements . 11
Annex A (normative) Fibre type . 17
Annex B (normative) Sample size and product sourcing requirements . 18
Bibliography . 19

Figures
Figure 1 – Outline and maximum dimensions . 9

Tables
Table 1 – Optical fibre mechanical splice, for category U – variants . 8
Table 2 – Test details and requirements. 11
Table A.1 – Fibre type characteristics . 17
Table B.1 – Sample size per test . 18

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SIST EN 50411-3-2:2011
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1 Scope
1.1 Product definition
This European Standard contains the initial, start of life dimensional, optical, mechanical and environmental

performance requirements, which a singlemode mechanical splice shall meet in order for it to be categorised
as an EN standard product.
Since different variants and grades of performance are permitted, product marking and identification details
are given in 3.5.
Although in this document the product is qualified for EN 60793-2-50 types B1.1 and B1.3 singlemode fibres,
it may also be suitable for other fibre types.
1.2 Interoperability
The installed mechanical splice fits into a fibre management system with optical fibre splice cassettes or
splice trays. This European Standard specifies the following two physical interface dimensions:
a) cross sectional profile with width, height or diameter (in millimetres);
b) length (in millimetres).
1.3 Expected performance
In this document, the performance of a mechanical splice is given with identical fibres only. Losses
associated with fibre cladding diameter and mode field 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 defined as category U in EN 61753-1. To ensure that the product can be used in closures,
boxes or street cabinet for categories A, G and S (as defined EN 61753-1) the specified lower temperature is
extended to - 40 °C and requirements for temporary flooding have been added.
1.5 Reliability
Whilst the anticipated service life expectancy of the product in this environment is 20 years, compliance with
this specification does not guarantee the reliability of the product. This should be predicted using a
recognised reliability assessment programme.
1.6 Quality assurance
Compliance with this specification does not guarantee the manufacturing consistency of the product. This
standard does not cover quality insurance.

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SIST EN 50411-3-2:2011
EN 50411-3-2:2011 – 6 –
2 Normative references
The following referenced documents are indispensable for the application of this document. For dated
references, only the edition cited applies. For undated references, the latest edition of the referenced
document (including any amendments) applies.
EN 60793-2-50 Optical fibres – Part 2-50: Product specifications – Sectional specification for class B
single-mode fibres (IEC 60793-2-50)
EN 61300 series Fibre optic interconnecting devices and passive components – Basic test and
measurement procedures (IEC 61300 series)
EN 61300-2-1 Part 2-1: Tests – Vibration (sinusoidal) (IEC 61300-2-1)
EN 61300-2-4 Part 2-4: Tests – Fibre/cable retention (IEC 61300-2-4)
EN 61300-2-5 Part 2-5: Tests – Torsion/twist (IEC 61300-2-5)
EN 61300-2-7 Part 2-7: Tests – Bending moment (IEC 61300-2-7)
EN 61300-2-9 Part 2-9: Tests – Shock (IEC 61300-2-9)
EN 61300-2-17 Part 2-17: Tests – Cold (IEC 61300-2-17)
EN 61300-2-18 Part 2-18: Tests – Dry heat – High temperature endurance (IEC 61300-2-18)
EN 61300-2-22 Part 2-22: Tests – Change of temperature (IEC 61300-2-22)
EN 61300-2-26 Part 2-26: Tests – Salt mist (IEC 61300-2-26)
EN 61300-2-27 Part 2-27: Tests – Dust – Laminar flow (IEC 61300-2-27)
EN 61300-2-33 Part 2-33: Tests – Assembly and disassembly of fibre optic closures
(IEC 61300-2-33)
EN 61300-2-45 Part 2-45: Tests – Durability test by water immersion (IEC 61300-2-45)
EN 61300-2-46 Part 2-46: Tests – Damp heat cyclic (IEC 61300-2-46)
EN 61300-3-3:2009 Part 3-3: Examinations and measurements – Active monitoring of changes in
attenuation and return loss (IEC 61300-3-3:2009)
EN 61300-3-4:2001 Part 3-4: Examinations and measurements – Attenuation (IEC 61300-3-4:2001)
EN 61300-3-6:2009 Part 3-6: Examinations and measurements – Return loss (IEC 61300-3-6:2008)
EN 61300-3-7:2001 Part 3-7: Examinations and measurements – Wavelength dependence of attenuation
and return loss (IEC 61300-3-7:2000)
EN 61300-3-28:2002 Part 3-28: Examinations and measurements – Transient loss (IEC 61300-3-28:2002)
EN 61753-1:2007 Fibre optic interconnecting devices and passive components performance standard –
Part 1: General and guidance for performance standards (IEC 61753-1:2007)
3 Description
3.1 General
A singlemode 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 minimise reflections and to improve
attenuation at the glass/gel/glass interface.

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SIST EN 50411-3-2:2011
– 7 – EN 50411-3-2:2011
Some splices may have a limited reinstallation capability. In this case the re-installability shall be clearly
stated and the re-installation test 10 in 8.3 shall be conducted.
3.2 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, wedge or plunger;
– a fibre clamping or fixing able to withstand axial fibre loads.
Mechanical splices designed for use with cables shall contain strain relief fixing.
3.3 Materials
Materials which are not specified or which are not specifically described are left to the discretion of the
manufacturer. However, the following requirements shall be met:
– all materials that are likely to come in contact with personnel shall meet appropriate health and safety
regulations;
– the sealing and index matching materials shall be compatible with the materials of the fibres and the
mechanical splice parts;
– all components of the splice shall be resistant to solvents and degreasing agents that are typically used
to clean and degrease fibres and cables;
– metallic parts shall be resistant to the corrosive influences they may encounter during the lifetime of the
product;
– exterior polymer materials shall be resistant to mould growth.
3.4 Dimensions
Outline dimensions are specified. All other dimensions are left to the discretion of the manufacturer.
3.5 Colour and marking
Marking of the product or packaging shall be in the following order of precedence:
a) identification of supplier;
b) manufacturing date code: year/week;
c) manufacturers part number;
d) variant identification number.
There is no preferred colour specified.

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SIST EN 50411-3-2:2011
EN 50411-3-2:2011 – 8 –
4 Variants
Table 1 – Optical fibre mechanical splice, for category U – variants
EN 50411–3–2 – XX – X – X – X – X
1 2 3 4 5
Variant No. XX Mechanical splice type
1
(common profile)
M1 Mechanical splice Type 1
M2 Mechanical splice Type 2
M3 Mechanical splice Type 3
Mechanical splice Type 4
M4
M5 Mechanical splice Type 5
M6 Mechanical cable splice Type 6

Variant No. X Attenuation grade
2
B ≤ 0,25 dB maximum
C ≤ 0,50 dB maximum

Variant No. X Return loss grade capability
3
(depends on cleave/process)
1 ≥ 60 dB
2
≥ 45 dB
3 ≥ 35 dB

Variant No. X
...