SIST EN 50377-6-2:2007

SLOVENSKI STANDARD
01-november-2007
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Connector sets and interconnect components to be used in optical fibre communication
systems - Product specifications -- Part 6-2: SC-RJ single mode terminated on IEC
60793-2-50 category B1.1 and B1.3 singlemode fibre, category U
Steckverbindersätze und Verbindungsbauelemente für Lichtwellenleiter-
Datenübertragungssysteme - Produktnormen -- Teil 6-2: Bauart SC-RJ zum Anschluss
an Einmodenfasern der Typen B1.1 und B1.3 nach IEC 60793-2-50 für die Kategorie U
Jeux de connecteurs et composants d'interconnexion a utiliser dans les systemes de
communication par fibres optiques - Spécifications de produit -- Partie 6-2: Type SC-RJ
câblé sur une fibre unimodale des catégories B1.1 et B1.3 de la CEI 60793-2-50,
catégorie U
Ta slovenski standard je istoveten z: EN 50377-6-2:2007
ICS:
33.180.20 3RYH]RYDOQHQDSUDYH]D Fibre optic interconnecting
RSWLþQDYODNQD devices
2003-01.Slovenski inštitut za standardizacijo. Razmnoževanje celote ali delov tega standarda ni dovoljeno.

EUROPEAN STANDARD
EN 50377-6-2
NORME EUROPÉENNE
August 2007
EUROPÄISCHE NORM
ICS 33.180.20 Supersedes EN 50377-6-2:2004

English version
Connector sets and interconnect components
to be used in optical fibre communication systems -
Product specifications -
Part 6-2: SC-RJ single mode terminated on IEC 60793-2-50
category B1.1 and B1.3 singlemode fibre, category U

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 6-2: Type SC-RJ câblé Teil 6-2: Bauart SC-RJ zum Anschluss an
sur une fibre unimodale des catégories Einmodenfasern der Typen B1.1 und B1.3
B1.1 et B1.3 de la CEI 60793-2-50, nach IEC 60793-2-50 für die Kategorie U
catégorie U
This European Standard was approved by CENELEC on 2007-03-01. 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

© 2007 CENELEC - All rights of exploitation in any form and by any means reserved worldwide for CENELEC members.
Ref. No. EN 50377-6-2:2007 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 50377-6-2 on 2007-03-01.

This European Standard supersedes EN 50377-6-2:2004.

This document is updated to include the performance of the adaptor, and patchcord next to the pigtailed
connector as defined in the previous version. It also includes latest attenuation and return loss grades as
specified in EN 61755 series.
CENELEC draws attention to the fact that it is claimed that compliance with this document may involve
the use of a patent concerning SC-RJ connectors.
CENELEC takes no position concerning the evidence, validity and scope of this patent right.
The holder of this patent right has assured CENELEC Technical Committee TC 86BXA that he/she is
willing to negotiate licenses under reasonable and non-discriminatory terms and conditions with
applicants throughout Europe. In this respect, the statement of the holder of this patent right is registered
with the IEC. Information may be obtained from:
Reichle & De-Massari AG
Intellectual Property Department
Binzstrasse 31
8622 Wetzikon
Switzerland
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) 2008-03-01

– latest date by which the national standards conflicting
with the EN have to be withdrawn (dow) 2010-03-01

__________
- 3 - EN 50377-6-2:2007
Connector sets and interconnect components to be used in optical fibre communication
systems - Product specifications
Part 6-2: SC-RJ single mode terminated on IEC 60793-2-50 category B1.1 and B1.3 singlemode fibre,
category U
Description Performance
Coupling mechanism: Push-pull Application: For the use in EN category U
(uncontrolled environment)
Configuration: Plug/adaptor/plug Attenuation grades B: ≤ 0,12 dB mean
(random mate):
≤ 0,25 dB for ≥ 97 % of measurements

C: ≤ 0,25 dB mean
Fibre category: EN 60793-2-50

≤ 0,50 dB for ≥ 97 % of measurements
Types B1.1 and B1.3
Return loss grades:
2: ≥ 45 dB (mated)
Cable type: See Table 3
Related documents:
EN 60794-2 Optical fibre cables - Part 2: Indoor cables - Sectional specification (IEC 60794-2)
EN 61300 series Fibre optic interconnecting devices and passive components - Basic test and measurement
procedures (IEC 61300 series)
EN 61753-1 Fibre optic interconnecting devices and passive components performance standard -
Part 1: General and guidance for performance standards (IEC 61753-1)
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)
EN 61755-3-1 Fibre optic connector optical interfaces - Part 3-1: Optical interface, 2,5 mm and
1,25 mm diameter cylindrical full zirconia PC ferrule, single mode fibre
(IEC 61755-3-1, mod.)
ETSI TS 100 671 Transmission and Multiplexing (TM); Passive optical components; Optical fibre
connectors for single-mode optical fibre communication systems; Common requirements
and conformance testing
1)
IEC 61754-24 Fibre optic connector interfaces - Part 24: Type SC-RJ connector family

Outline and maximum dimensions:

1)
At draft stage.
Contents
1 Scope.5
1.1 Product definition .5
1.2 Intermateability.5
1.3 Operating environment.5
1.4 Reliability.5
1.5 Quality assurance.5
2 Normative references.6
3 Description.7
3.1 General.7
3.2 Plug.7
3.3 Adaptor.7
3.4 Materials.8
3.5 Dimensions.8
3.6 Colour and marking.8
4 Variants.9
4.1 Terminated plug.9
4.2 Adaptor.9
4.3 Identification of variants.10
5 Dimensional requirements.11
5.1 Outline dimensions.11
5.2 Mating face and other limit dimensions .13
6 Tests.21
6.1 Sample size.21
6.2 Test and measurement methods.21
6.3 Test sequence.21
6.4 Pass/fail criteria.21
7 Test report.21
8 Product qualification requirements.22
8.1 Dimensional and marking requirements.22
8.2 Optical performance requirements.22
8.3 Mechanical performance requirements.24
8.4 Environmental performance requirements .28

Annex A (informative) Attenuation against reference.30
Annex B (normative) Adaptor matched reference plug details.31
Annex C (normative) Sample size and product sourcing requirements.32
Annex D (informative) Zirconia ferrule response surface.33

Bibliography.34

Figure 1 - Outline dimensions - Plug .11
Figure 2 - Outline dimensions - SC-RJ adaptor.12
Figure 3 - Plug mating face and other limit dimensions.13
Figure 4 - Ferrule endface geometry - After termination.15
Figure 5a - Positioning of fibre core.15
Figure 5b - Positioning of two fibre cores relative to each other .16
Figure 6 - Ferrule endface geometry - Allowable undercut.17
Figure 7 - Requirements for the attenuation grades for the plug fibre core connected to the ideal reference.18
Figure 8 - Adaptor mating face and other limit dimensions.19
Figure 9 - Pin gauge for adaptor .20

Table 1 - Ensured level of random attenuation .5
Table 2 - Preferred colour scheme.8
Table 3 - Plug variants .9
Table 4 - Adaptor variants.9
Table 5 - Grade B plug variants.10
Table 6 - Grade C plug variants.10
Table 7 - Adaptor variants.10
Table 8 - Geometrical parameters.16
Table 9 - Optical performance requirements.22
Table 10 - Mechanical performance requirements .24
Table 11 - Environmental performance requirements .28

- 5 - EN 50377-6-2:2007
1 Scope
1.1 Product definition
This European Standard contains the initial, start of life dimensional, optical, mechanical and
environmental performance requirements which a connector terminated with cylindrical zirconia PC
ferrules and assembled single-mode resilient alignment sleeve SC-RJ connector set (plug/adaptor/plug),
adaptor and patchcord must meet in order for it 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 specification 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.

Table 1 - Ensured level of random attenuation

Plug variant / Attenuation grade B C
B B C
C C C
SC simplex plugs according to EN 61754-4 can be connected in the SC-RJ adaptor without degrading its
level of performance.
1.3 Operating environment
The tests selected combined with the severities and durations are representative of an uncontrolled
environment defined by EN 61753-1, category U.
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 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 Fibre optic interconnecting devices and passive components - Basic test and
measurement procedures - Part 2-2: Tests - Mating durability (IEC 61300-2-2)
EN 61300-2-4 Fibre optic interconnecting devices and passive components - Basic test and
measurement procedures - Part 2-4: Tests - Fibre/cable retention (IEC 61300-2-4)
EN 61300-2-5 Fibre optic interconnecting devices and passive components - Basic test and
measurement procedures - Part 2-5: Tests - Torsion/twist (IEC 61300-2-5)
EN 61300-2-6 Fibre optic interconnecting devices and passive components - Basic test and
measurement procedures - Part 2-6: Tests - Tensile strength of coupling mechanism
(IEC 61300-2-6)
EN 61300-2-12 Fibre optic interconnecting devices and passive components - Basic test and
measurement procedures - Part 2-12: Tests - Impact (IEC 61300-2-12)
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 61300-2-42 Fibre optic interconnecting devices and passive components - Basic test and
measurement procedures - Part 2-42: Tests - Static side load for connectors
(IEC 61300-2-42)
EN 61300-2-44 Fibre optic interconnecting devices and passive components - Basic test and
measurement procedures - Part 2-44: Tests - Flexing of the strain relief of fibre optic
devices (IEC 61300-2-44)
EN 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 61300-3-4 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 61300-3-10 Fibre optic interconnecting devices and passive components - Basic test and
measurement procedures - Part 3-10: Examinations and measurements - Gauge
retention force (IEC 61300-3-10)
EN 61300-3-15 Fibre optic interconnecting devices and passive components - Basic test and
measurement procedures - Part 3-15: Examinations and measurements - Eccentricity of
a convex polished ferrule endface (IEC 61300-3-15)

- 7 - EN 50377-6-2:2007
EN 61300-3-16 Fibre optic interconnecting devices and passive components - Basic test and
measurement procedures - Part 3-16: Examinations and measurements - Endface
radius of spherically polished ferrules (IEC 61300-3-16)
EN 61300-3-23 Fibre optic interconnecting devices and passive components - Basic test and
measurement procedures - Part 3-23: Examinations and measurements - Fibre position
relative to ferrule endface (IEC 61300-3-23)
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 61300-3-34 Fibre optic interconnecting devices and passive components - Basic test and
measurement procedures - Part 3-34: Examinations and measurements - Attenuation of
random mated connectors (IEC 61300-3-34)
1)2
EN 61300-3-42 Fibre optic interconnecting devices and passive components - Basic test and
measurement procedures - Part 3-42: Examinations and measurements - Attenuation of
single mode alignment sleeves and or adaptors with resilient alignment sleeves
1)
(IEC 61300-3-42)
EN 61753-1 Fibre optic interconnecting devices and passive components performance standard -
Part 1: General and guidance for performance standards (IEC 61753-1)
EN 61754-4 Fibre optic connector interfaces - Part 4: Type SC connector family (IEC 61754-4)
EN 186000-1 Generic Specification: Connector sets for optical fibres and cables - Part 1:
Requirements, test methods and qualification approval procedures
1)
IEC 61754-24 Fibre optic connector interfaces - Part 24: Type SC-RJ connector family

3 Description
3.1 General
The SC-RJ connector is a duplex plug connector set of plug/adaptor/plug configuration characterised by
two cylindrical, spring loaded butting ferrules of 2,5 mm nominal diameter and a push-pull coupling
mechanism. The optical alignment mechanism of the connectors is of a resilient sleeve style.
3.2 Plug
The plug features two cylindrical full zirconia ferrules and a push-pull coupling mechanisms. Alternative
materials may be used for the ferrule that have directly compatible material properties as zirconia, but the
endface and performance requirements must be met under all conditions.
The plug housing has three male keys. Two of them are used to limit the relative rotation between mated
SC simplex plugs and one gives the orientation to the duplex connector.
A cover (dust cap) to protect the ferrule endface when the plug is in the unmated condition shall be
provided.
3.3 Adaptor
The adaptor consists of two zirconia ceramic resilient alignment sleeves and two push-pull coupling
mechanisms, one for each sleeve. Alternative materials may be used for the sleeve that have directly
compatible material properties as zirconia but the performance requirements must be met under all
conditions.
The mounting style is a rectangular flange with 2 hole or snap-in fixing.
The adaptor can either connect to an SC-RJ plug or to two SC simplex plugs. The adaptor housing has
three female keys. Two of them are used to limit the relative rotation between mated SC simplex plugs
and one gives the orientation to the duplex connector.
Covers (dust caps) shall be provided to protect each duplex port of the adaptor.

1)
At draft stage.
3.4 Materials
Materials which are not specified or which are not specifically described are left to the discretion of the
manufacturer.
3.5 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 EN Interface Standard this is clearly stated.
3.6 Colour and marking
Marking of the product shall be in accordance with 2.6.2 of EN 186000-1 in the following order of
precedence:
a) identification of manufacturer;
b) manufacturing date code: year / week;
c) manufacturers part number;
d) variant identification number.

The preferred colour scheme is given in Table 2.

Table 2 - Preferred colour scheme

Delatch housing SC-RJ Plug Adaptor
Blue Blue
NOTE  The preferred blue is RAL 5015.
Other not listed parts could also be of the preferred colour to show the colour scheme.

- 9 - EN 50377-6-2:2007
4 Variants
4.1 Terminated plug
The following fibre/cable variants are permitted:

Table 3 - Plug variants
Fibre/cable ∅
Variant number Structure Note
mm
B1 0,7 - 1,4 Buffered fibre 1 fibre
B2 1,7 ± 0,1 Reinforced cable 1 fibre
B3 2,0 ± 0,1 Reinforced cable 1 fibre
B4 2,5 ± 0,1 Reinforced cable 1 fibre
B5 2,8 ± 0,1 Reinforced cable 1 fibre
B6 3,0 ± 0,1 Reinforced cable 1 fibre
B7 3,2 ± 0,1 Reinforced cable 1 fibre
B8 2,7 * 5,4 Reinforced twin zip cable 2 fibres
C1 0,7 - 1,4 Buffered fibre 1 fibre
C2 1,7 ± 0,1 Reinforced cable 1 fibre
C3 2,0 ± 0,1 Reinforced cable 1 fibre
C4 2,5 ± 0,1 Reinforced cable 1 fibre
C5 2,8 ± 0,1 Reinforced cable 1 fibre
C6 3,0 ± 0,1 Reinforced cable 1 fibre
C7 3,2 ± 0,1 Reinforced cable 1 fibre
C8 2,7 * 5,4 Reinforced twin zip cable 2 fibres
4.2 Adaptor
The following variants are permitted:

Table 4 - Adaptor variants
Variant number Format
1 Rectangular flange – Duplex
NOTE  The adaptor can either be fixed by using two nuts/bolts (2 holes next to rectangular flange) or
snapping on a board.
4.3 Identification of variants
The identification numbers for the fibre/cable variants and adaptor variants are given in Tables 5, 6 and 7.

Table 5 – Grade B plug variants

Performance class
Variant number Identification number
(Return loss)
B1 2 EN 50377-6-2-B1-2
B2 2 EN 50377-6-2-B2-2
B3 2 EN 50377-6-2-B3-2
B4 2 EN 50377-6-2-B4-2
B5 2 EN 50377-6-2-B5-2
B6 2 EN 50377-6-2-B6-2
B7 2 EN 50377-6-2-B7-2
B8 2 EN 50377-6-2-B8-2
Table 6 – Grade C plug variants

Performance class
Variant number Identification number
(Return loss)
C1 2 EN 50377-6-2-C1-2
C2 2 EN 50377-6-2-C2-2
C3 2 EN 50377-6-2-C3-2
C4 2 EN 50377-6-2-C4-2
C5 2 EN 50377-6-2-C5-2
C6 2 EN 50377-6-2-C6-2
C7 2 EN 50377-6-2-C7-2
C8 2 EN 50377-6-2-C8-2
Table 7 - Adaptor variants
Variant number Identification number
1 EN 50377-6-2-1
- 11 - EN 50377-6-2:2007
5 Dimensional requirements
5.1 Outline dimensions
5.1.1 Plug
Variant No. B1 - B8 / C1 - C8.

Dimensions
Ref.
min. mm max.
A  16,8
B  14,8
C  11,2
D   8,99
E  33,3
F  57,0
G  58,4
Figure 1 - Outline dimensions - Plug

5.1.2 Adaptor
Variant No. 1.
Panel cut-out
screw mounting screw mounting snap-in mounting

Dimensions
Ref. Note
min. mm max.
H  - 16,1
I  - 13,2
J 19,3 19,4
K  - 22,6
L  - 14,6
M  -  4,2
N  - 33,0
O  2,4  2,6 Diameter
P  4,9  5,8
DD  8,5  8,7
PA 13,2 13,6
PB 16,2 16,4
PC 14,8 15,0
PD 19,4 19,6
QA 13,4 13,5
QB 12,9 13,0
QC  2,8  3,0
QD  - 16,5
QE  1,6  1,7
Figure 2 - Outline dimensions - SC-RJ adaptor

- 13 - EN 50377-6-2:2007
5.2 Mating face and other limit dimensions
5.2.1 Plug
The mating face dimensions are in accordance with IEC 61754-24 and EN 61754-4 and listed to illustrate
the intermateability between SC plug and SC-RJ plug against the SC-RJ adaptor.

Section B - B Section A - A
Figure 3 - Plug mating face and other limit dimensions

Dimensions
Ref. Note
min. mm max.
A 16,2 16,8
B 14,5 14,8
C 10,8 11,2
D  8,9  8,99
Q  2,498 5  2,499 5 Diameter
R  4,8  5,0 Diameter
S  8,9  8,99
T  4,9  5,3
U  6,7  6,8
V 19 23 Degrees
W 25 35 Degrees
X  7,15  7,5 See notes 1, 2
Y  0,8  1,2
Z
...