SIST EN 50377-11-1:2008

SLOVENSKI STANDARD
01-april-2008
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Connector sets and interconnect components to be used in optical fibre communication
systems - Product specifications - Part 11-1: Type MF terminated on IEC 60793-2-50
category B1.1 and B1.3 singlemode fibre for category C
Steckverbindersätze und Verbindungsbauelemente für Lichtwellenleiter-
Datenübertragungssysteme - Produktnormen - Teil 11-1: Bauart MF zum Anschluss an
Einmodenfasern der Kategorien B1.1 und B1.3 nach IEC 60793-2-50 für Kategorie C
Jeux de connecteurs et composants d'interconnexion à utiliser dans les systèmes de
communication par fibres optiques - Spécifications de produit - Partie 11-1: Type MF
raccordé sur une fibre unimodale des catégories B1.1 et B1.3 de la CEI 60793-2-50 pour
la catégorie C
Ta slovenski standard je istoveten z: EN 50377-11-1:2008
ICS:
33.180.20
2003-01.Slovenski inštitut za standardizacijo. Razmnoževanje celote ali delov tega standarda ni dovoljeno.

EUROPEAN STANDARD
EN 50377-11-1
NORME EUROPÉENNE
February 2008
EUROPÄISCHE NORM
ICS 33.180.20
English version
Connector sets and interconnect components
to be used in optical fibre communication systems -
Product specifications -
Part 11-1: Type MF terminated on IEC 60793-2-50
category B1.1 and B1.3 singlemode fibre for category C

Jeux de connecteurs et composants Steckverbindersätze
d'interconnexion à utiliser und Verbindungsbauelemente
dans les systèmes de communication für Lichtwellenleiter-
par fibres optiques - Datenübertragungssysteme -
Spécifications de produit - Produktnormen -
Partie 11-1: Type MF raccordé Teil 11-1: Bauart MF zum Anschluss
sur une fibre unimodale an Einmodenfasern der Kategorien
des catégories B1.1 et B1.3 B1.1 und B1.3 nach IEC 60793-2-50
de la CEI 60793-2-50 für Kategorie C
pour la catégorie C
This European Standard was approved by CENELEC on 2007-09-01. 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, 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

Central Secretariat: rue de Stassart 35, B - 1050 Brussels

© 2008 CENELEC - All rights of exploitation in any form and by any means reserved worldwide for CENELEC members.
Ref. No. EN 50377-11-1:2008 E
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 Unique Acceptance Procedure and was approved by CENELEC as
EN 50377-11-1 on 2007-09-01.
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) 2008-09-01

– latest date by which the national standards conflicting
with the EN have to be withdrawn (dow) 2010-09-01

__________
– 3 – EN 50377-11-1:2008
Connector sets and interconnect components to be used in optical fibre communication systems -
Product specifications
Part 11-1: Type MF terminated on IEC 60793-2-50 category B1.1 and B1.3 singlemode fibre for
category C
Description Performance
Coupling mechanism: back plane Application: For use backplane application (test
severities derived from IEC cat C)

Configuration: plug and socket Attenuation grades: B: ≤ 0,12 dB mean
(Random mated)
≤ 0,25 dB for > 97 % of
measurements
Fibre Category: EN 60793-2-50
C: ≤ 0,25 dB mean
type B1.1 and
≤ 0,50 dB for > 97 % of
B1.3
measurements
Cable Type: See Table 3 Return loss grade:
2: ≥ 45 dB
Related documents:
EN 50173 Information technology – Generic cabling systems
EN 60794-2-30 Optical fibre cables – Part 2-30: Indoor cables – Family specification for optical fibre
ribbon cables (IEC 60794-2-30)
EN 61300 series Fibre optic interconnecting devices and passive components – Basic test and
measurement procedures (IEC 61300 series)
EN 60793-2 Optical fibres – Part 2: Product specifications – General (IEC 60793-2)
EN 61753-1 Fibre optic interconnecting devices and passive components performance standard –
Part 1: General and guidance for performance standards (IEC 61753-1)
EN 61754-5 Fibre optic connector interfaces – Part 5: Type MT connector family (IEC 61754-5)
EN 61755-1 Fibre optic connector optical interfaces – Part 1: Optical interfaces for single mode
non-dispersion shifted fibres – General and guidance (IEC 61755-1)
1)
EN 61755-3-3 Fibre optic connector optical interfaces – Part 3-3: Optical interface angled PC
endface rectangular ferrule, single mode fibres (IEC 61755-3-3)

1)
At draft stage.
Contents
1 Scope. 6
1.1 Product definition. 6
1.2 Intermateability . 6
1.3 Operating environment. 6
1.4 Reliability. 6
1.5 Quality assurance . 6
2 Normative references. 6
3 Description . 7
3.1 Plug . 7
3.2 Housings. 7
3.3 Materials. 7
3.4 Dimensions. 7
3.5 Colour and marking. 8
4 Variants . 8
4.1 Terminated plug . 8
4.2 Housing and adaptor. 9
5 Dimensional requirements . 10
5.1 Outline dimensions. 10
5.2 Mating face and other limit dimensions . 13
6 Tests . 27
6.1 Sample size. 27
6.2 Test and measurement methods. 27
6.3 Test sequence . 27
6.4 Pass/fail criteria. 27
7 Test report. 27
8 Product qualification requirements . 27
8.1 Dimensional and marking requirements . 27
8.2 Optical performance requirements . 28
8.3 Mechanical performance requirements. 30
8.4 Environmental performance requirements. 32
Annex A (normative) Sample size and product sourcing requirements. 34
Annex B (informative) Type MF connector set. 35
Bibliography . 36

– 5 – EN 50377-11-1:2008
Figure 1 - Outline dimensions - Plug. 10
Figure 2 - Outline dimensions - Adaptor. 11
Figure 3 - Plug mating face limit dimensions, variant A1 . 13
Figure 4 - Female plug mating face limit dimensions, variant A2. 15
Figure 5 - Fibre core lateral location. 19
Figure 6 - Alignment pin. 19
Figure 7 - End face parameters related to attenuation and physical contact. 20
Figure 8 - Female housing interface, variant B2 . 21
Figure 9 - Male housing interface, variant B3. 23
Figure 10 - Gauge pin dimensions. 25
Figure 11 - Two hole gauge pin . 26

Table 1 - Ensured level of random attenuation. 6
Table 2 - Preferred colour scheme . 8
Table 3 - Plug variants and identifications number. 8
Table 4 - Adaptor variants and identification number. 9
Table 5 - Optical performance requirements. 28
Table 6 - Mechanical performance requirements . 30
Table 7 - Environmental performance requirements . 32

1 Scope
1.1 Product definition
This specification contains the initial, start of life dimensional, optical, mechanical and environmental
performance requirements which a terminated and assembled singlemode MF 4-fold-connector set (for backplane
applications) must meet in order to be categorised as an EN standard product.

Since different variants and grades of performance are permitted, product marking details are given in 3.5.
1.2 Intermateability
Although all products conforming to the requirements of this standard will intermate, the resulting level of
random attenuation performance will only be ensured in accordance with Table 1. The intention is that this will
be true irrespective of the manufacturing source(s) of the product.

When intermating plug variants having different attenuation grades, the resulting level of attenuation can not be
assured to be any better than the worst attenuation grade.
The intermating of a grade C plug with a grade B plug will result in an uncertain level of random attenuation
performance.
Table 1 - Ensured level of random attenuation

Plug variant/Attenuation grade C B
C C C
B C B
1.3 Operating environment
The tests selected combined with the severities and durations are derived from the category C environment,
according to EN 61753-1.
1.4 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.

1.5 Quality assurance
Compliance with this specification does not guarantee the manufacturing consistency of the product. This should
be maintained using a recognised quality assurance programme.
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 60794-2-30 Optical fibre cables – Part 2-30: Indoor optical fibre cables – Family specification for
optical fibre ribbon cables (IEC 60794-2-30)
EN 61076-4-100 Connectors for electronic equipment – Part 4-100: Printed board connectors with
assessed quality – Detail specification for two-part connector modules having a grid of
2,5 mm for printed boards and backplanes (IEC 61076-4-100)
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 61300-2-2 Part 2-2: Tests – Mating durability (IEC 61300-2-2)

– 7 – EN 50377-11-1:2008
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 61300-2-19 Part 2-19: Tests – Damp heat (steady state) (IEC 61300-2-19)
EN 61300-2-22 Part 2-22: Tests – Change of temperature (IEC 61300-2-22)
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)
EN 61300-3-6 Part 3-6: Examinations and measurements – Return loss (IEC 61300-3-6)
EN 61300-3-30 Part 3-30: Examinations and measurements – Polish angle and fibre position on single
ferrule multifibre connectors (IEC 61300-3-30)
EN 61300-3-34 Part 3-34: Examinations and measurements – Attenuation of random mated connectors
(IEC 61300-3-34)
EN 61753-1 Fibre optic interconnecting devices and passive components performance standard –
Part 1: General and guidance for performance standards (IEC 61753-1)
EN 61754-5 Fibre optic connector interfaces – Part 5: Type MT connector family (IEC 61754-5)
3 Description
The MF connector is a single position plug connector set of plug and socket configuration characterised by a
rectangular, spring loaded butting ferrule with up to 12 fibres and a backplane coupling mechanism. The optical
alignment mechanism of the connectors is of a precision pin and hole type.
3.1 Plug
The plug features a rectangular thermo plastic composite ferrule and a latched coupling mechanism.

A cover (dustcap) to protect the ferrule endface when the connector is in the unmated condition shall be
provided.
3.2 Housings
The housings B2 and B3 (see Annex B) have no role in the final alignment mechanism. The mounting style is:

EN 61076-4-100 Back plane MF-A/MF-B

See Annex A.
Covers (dustcaps) shall be provided to protect each port of the adaptor.
3.3 Materials
Materials which are not specified or which are not specifically described are left to the discretion of the
manufacturer. The material for the ferrule is Polyphenylene Sulphide (PPS) material with a Young’s modulus of
20 GPa nominal and guide pins which are of stainless steel. Alternative materials, which have compatible
material properties, may be used as long as endface and performance requirements are met under all conditions as
specified in this document.
3.4 Dimensions
Outline dimensions and other dimensions necessary to ensure intermateability or which affect performance are
specified. All other dimensions are left to the discretion of the manufacturer. Where the mating face limit
dimensions are not in agreement with an IEC interface this is clearly stated.

3.5 Colour and marking
Marking of the product shall be in the following order of precedence:

- identification of manufacturer;
- manufacturing date code: year/week;
- manufacturer's part number;
- variant identification number.

The following colour coding scheme is preferred:

Table 2 - Preferred colour scheme

Adaptor Delatch housing
Blue Blue
Preferred RAL number 5015.
4 Variants
4.1 Terminated plug
The following variants are permitted:

Table 3 - Plug variants and identifications number

E N 5 0 3 7 7 - 1 1 - 1 - * * - * * *

Variant
A2 Without pins
B1 Back plane
Variant
C Cable
F Ribbon fibre
Fibre No. Cable Dimensions Fibre Dimensions
mm Structure mm Structure
02 3,5 X 2,5 Reinforced cable 0,70 X 0,41 Ribbon fibre
04 3,5 X 2,5 Reinforced cable 1,20 X 0,41 Ribbon fibre
06 4,0 X 2,5 Reinforced cable 1,70 X 0,41 Ribbon fibre
08 4,5 X 2,5 Reinforced cable 2,20 x 0,41 Ribbon fibre
12 5,0 X 2,5 Reinforced cable 3,20 X 0,41 Ribbon fibre
...