Bsi bs en 50377 4 2 2011

BS EN 50377-4-2:2011 BSI Standards Publication Connector sets and interconnect components to be used in optical fibre communication systems — Product specifications Part 4-2: Type SC/APC simplex 8° terminated on IEC 60793-2-50 of types B1.1 and B1.3 singlemode fibre, with full zirconia ferrule category U NO COPYING WITHOUT BSI PERMISSION EXCEPT AS PERMITTED BY COPYRIGHT LAW raising standards worldwide™ BS EN 50377-4-2:2011 BRITISH STANDARD National foreword This British Standard is the UK implementation of EN 50377-4-2:2011 The UK participation in its preparation was entrusted to Technical Committee GEL/86/2, Fibre optic interconnecting devices and passive components A list of organizations represented on this committee can be obtained on request to its secretary This publication does not purport to include all the necessary provisions of a contract Users are responsible for its correct application © BSI 2011 ISBN 978 580 65345 ICS 33.180.20 Compliance with a British Standard cannot confer immunity from legal obligations This British Standard was published under the authority of the Standards Policy and Strategy Committee on 30 April 2011 Amendments issued since publication Date Text affected BS EN 50377-4-2:2011 EUROPEAN STANDARD EN 50377-4-2 NORME EUROPÉENNE March 2011 EUROPÄISCHE NORM ICS 33.180.20 English version Connector sets and interconnect components to be used in optical fibre communication systems Product specifications Part 4-2: Type SC/APC simplex 8° terminated on IEC 60793-2-50 of types B1.1 and B1.3 singlemode fibre, with full zirconia ferrule category U Jeux de connecteurs et composants d'interconnexion utiliser dans les systèmes de communication par fibres optiques Spécifications de produits Partie 2: Type simplex SC/APC degrés câblé sur une fibre unimodale de types B1.1 et B1.3 selon la CEI 60793-250, avec férule en zircone plein de catégorie U Steckverbindersätze und Verbindungsbauelemente für LichtwellenleiterDatenübertragungssysteme Produktnormen Teil 2: Bauart SC-APC-Simplex, 8°, zum Anschluss an Einmodenfasern der Typen B1.1 und B1.3 nach IEC 60793-2-50 mit Zirkoniumdioxyd-Ferrule für die Kategorie U 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 50377-4-2:2011 E BS EN 50377-4-2:2011 EN 50377-4-2:2011 –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 50377-4-2 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 BS EN 50377-4-2:2011 –3– EN 50377-4-2:2011 Connector sets and interconnect components to be used in optical fibre communication systems – Product specifications Part 4-2: Type SC/APC simplex 8° terminated on IEC 60793-2-50 of types B1.1 and B1.3 singlemode fibre, with full zirconia ferrule category U Description Performance Coupling mechanism: Push-pull Application: For use in EN Category U (uncontrolled environment) Configuration: Plug/adaptor/plug Attenuation grades: (random mate) B: ≤ 0,12 dB mean ≤ 0,25 dB for 97 % of measurements Fibre category: EN 60793-2-50 Types B1.1 and B1.3 Cable type: See Table C: ≤ 0,25 dB mean ≤ 0,50 dB for 97 % of measurements Return loss grade: (random mate) 1: ≥ 60 dB mated ≥ 55 dB unmated 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 61754-4 Fibre optic connector interfaces – Part 4: Type SC connector family (IEC 61754-4) 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 61755-3-2:2009 Fibre optic connector optical interfaces – Part 3-2: Optical interface, 2,5 mm and 1,25 mm diameter cylindrical full zirconia ferrules for degrees angled-PC single mode fibres (IEC 61755-3-2:2006, mod + corr Jan 2009) ETSI EN 300 019 series Environmental Engineering (EE); Environmental conditions and environmental tests for telecommunications equipment 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 Outline and maximum dimensions: 68 REF 58 MAX 79 REF 60 MAX BS EN 50377-4-2:2011 EN 50377-4-2:2011 –4– Contents 1 Scope 6 2 1.1 Product definition 6 1.2 Intermateability 6 1.3 Operating environment 6 1.4 Reliability 6 1.5 Quality assurance 6 Normative references 7 3 Description 8 4 3.1 General 8 3.2 Plug 8 3.3 Adaptor 8 3.4 Materials 8 3.5 Dimensions 8 3.6 Colour and marking 8 Variants 9 5 4.1 Terminated plug 9 4.2 Adaptor 9 Dimensional requirements 10 6 5.1 Outline dimensions 10 5.2 Mating face and other limit dimensions 12 Tests 20 7 6.1 Sample size 20 6.2 Test and measurement methods 21 6.3 Test sequence 21 6.4 Pass/fail criteria 21 Test report 21 8 Product qualification requirements 21 8.1 Dimensional and marking requirements 21 8.2 Optical performance requirements 22 8.3 Mechanical performance requirements 23 8.4 Environmental performance requirements 27 Annex A (informative) Attenuation against reference 29 A.1 Test details 29 A.2 Reference connector details 29 Annex B (normative) Adaptor matched reference plug details 30 Annex C (normative) Sample size and product sourcing requirements 31 Annex D (informative) Zirconia ferrule response surface 32 Bibliography 33 BS EN 50377-4-2:2011 –5– EN 50377-4-2:2011 Figures Figure – Outline dimensions – Plug 10 Figure – Outline dimensions 11 Figure – Plug mating face and other limit dimensions 12 Figure – Adaptor mating face and other limit dimensions 14 Figure – Ferrule endface geometry after termination 16 Figure – Positioning of fibre core 17 Figure – Ferrule end face geometry – Allowable undercut 18 Figure – Requirements for the attenuation grades for the plug fibre core connected to the ideal reference 19 Figure – Pin gauge for adaptor 20 Figure D.1 – Radius vs undercut and apex offset 32 Tables Table – Ensured level of random attenuation 6 Table – Preferred colour scheme 8 Table – Plug variants 9 Table – Adaptor variants 9 Table – Optical interface parameter values for APC ferrules 16 Table – Geometrical parameters 17 Table – Optical performance requirements 22 Table – Mechanical performance requirements 23 Table – Environmental performance requirements 27 Table A.1 – Test details for reference connectors 29 Table C.1 – Sample size and product sourcing requirements 31 BS EN 50377-4-2:2011 EN 50377-4-2:2011 1.1 –6– Scope 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 8° angled PC ferrule and assembled singlemode resilient alignment sleeve SC-APC simplex 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 3.6 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 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 cannot 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 – Ensured level of random attenuation 1.3 Plug variant / Attenuation grade C B C C C B C B Operating environment The tests selected combined with the severities and durations are representative of a category U environment described in EN 61753-1 1.4 Reliability Whilst the anticipated service life expectancy of the product in this environment is 20 years, compliance with this standard 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 standard does not guarantee the manufacturing consistency of the product This should be maintained using a recognised quality assurance programme BS EN 50377-4-2:2011 –7– EN 50377-4-2:2011 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 Part 2-2: Tests – Mating durability (IEC 61300-2-2) 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 61300-2-6 Part 2-6: Tests – Tensile strength of coupling mechanism (IEC 61300-2-6) EN 61300-2-7 Part 2-7: Tests – Bending moment (IEC 61300-2-7) EN 61300-2-12 Part 2-12: Tests – Impact (IEC 61300-2-12) 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 61300-2-42 Part 2-42: Tests – Static side load for connectors (IEC 61300-2-42) EN 61300-2-44 Part 2-44: Tests – Flexing of the strain relief of fibre optic devices (IEC 61300-2-44) EN 61300-2-46 Part 2-46: Tests – Damp heat cyclic (IEC 61300-2-46) EN 61300-3-6 Part 3-6: Examinations and measurements – Return loss (IEC 61300-3-6) EN 61300-3-10 Part 3-10: Examinations and measurements – Gauge retention force (IEC 61300-3-10) EN 61300-3-15 Part 3-15: Examinations and measurements – Dome eccentricity of a convex polished ferrule endface (IEC 61300-3-15) EN 61300-3-16 Part 3-16: Examinations and measurements – Endface radius of spherically polished ferrules (IEC 61300-3-16) EN 61300-3-23 Part 3-23: Examination and measurements – Fibre position relative to ferrule endface (IEC 61300-3-23) EN 61300-3-28 Part 3-28: Examinations and measurements – Transient loss (IEC 61300-3-28) EN 61300-3-34 Part 3-34: Examinations and measurements – Attenuation of random mated connectors (IEC 61300-3-34) EN 61300-3-42 Part 3-42: Examinations and measurements – Attenuation of single mode alignment sleeves and or adaptors with resilient alignment sleeves (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) ISO 8015 Technical drawings – Fundamental tolerancing principle BS EN 50377-4-2:2011 EN 50377-4-2:2011 3.1 –8– Description General The SC-APC connector is a single position plug connector set of plug/adaptor/plug configuration characterised by a cylindrical, spring loaded butting ferrule of 2,5 mm nominal diameter and a latched pushpull coupling mechanism The optical alignment mechanism of the connectors is of a resilient sleeve style 3.2 Plug The plug features a cylindrical zirconia ceramic ferrule and a push-pull coupling mechanism The plug housing has a single male key, which is used to limit the relative rotation between mated plugs A cover (dust cap) to protect the ferrule end face when the connector is in the unmated condition shall be provided 3.3 Adaptor The adaptor has a zirconia ceramic resilient alignment sleeve The mounting style is a rectangular flange – simplex Covers (dust caps) are provided to protect each port of the adaptor 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 IEC Interface Standard this is clearly stated 3.6 Colour and marking Marking of the product shall be in the following order of precedence: – identification of manufacturer; – manufacturing date code: year/week; – manufacturers part number; – variant identification number The preferred colour scheme is given in Table Table – Preferred colour scheme Delatch housing SC-APC plug Green, RAL 6018 Adaptor Green, RAL 6018 BS EN 50377-4-2:2011 EN 50377-4-2:2011 8.2 – 22 – Optical performance requirements Table – Optical performance requirements No Test Adaptor performance (between matched a reference connectors) Attenuation b (random mate) Requirement < 0,10 dB Details Method: EN 61300-3-42 Place the slit of the sleeve at the positions 12, 3, and o’clock and measure the attenuation of the adaptor between matched reference connectors Reverse the adaptor between the connectors and measure the attenuation again with the slit at the positions 12, 3, and o’clock Source type: LED Peak wavelength: (1 310 ± 30) nm Source stability: ≤ ± 0,01 dB over the measuring period or at least h Detector linearity: Within ± 0,01 dB over the dynamic range to be measured Launch fibre length: > m Only the fundamental mode shall propagate at the connector interface to be tested and at the detector Pre-conditioning procedure: Clean plug and adaptor according to manufacturer's instructions Grade B Method: EN 61300-3-34 ≤ 0,12 dB mean ≤ 0,25 dB for ≥ 97 % of measurements Source type: LED/LD Peak wavelength: (1 310 ± 30) nm Grade C Source stability: ≤ 0,25 dB mean ≤ 0,50 dB for ≥ 97 % of measurements ≤ ± 0,01 dB over the measuring period or at least h Detector linearity: Within ± 0,01 dB over the dynamic range to be measured Launch fibre length: > m Only the fundamental mode shall propagate at the connector interface to be tested and at the detector Pre-conditioning procedure: Clean plug and adaptor in accordance to manufacturer's instructions 20 randomly mated plugs For plug / adaptor / plug connector sets, 10 adaptors, randomly selected shall be used (100 randomly mated connector sets) Total number of measurements 100 times the number of fibres in each plug BS EN 50377-4-2:2011 – 23 – EN 50377-4-2:2011 Table – Optical performance requirements (continued) No Test Return loss (random mate) Requirement Details Grade Method: EN 61300-3-6, Method ≥ 60 dB mated ≥ 55 dB unmated Source type: LD Peak wavelength: (1 310 ± 30) nm Source stability: ± 0,05 dB over the measuring period or at least h Detector linearity: Within ± 0,05 dB over the dynamic range to be measured Directional coupler, type: 50/50 Launch fibre length: > m Only the fundamental mode shall propagate at the connector interface to be tested and at the detector Directivity: > 70 dB Pre-conditioning procedure: Clean plug and adaptor in accordance to manufacturer's instructions 20 randomly mated plugs For plug / adaptor / plug connector sets, 10 adaptors, randomly selected shall be used (100 randomly mated connector sets) Total number of measurements 100 times the number of fibres in each plug a Matched reference connector definition is given in Annex B b Attenuation measurement tests against reference connectors (EN 61300-3-4) are intended to be used should quality conformance be required (See Annex A) Random mating attenuation test (EN 61300-3-34) is to be used during qualification to ensure that the requirements of the appropriate grade are met 8.3 Mechanical performance requirements Table – Mechanical performance requirements No Test Vibration (sinusoidal) Requirement Attenuation at (1 550 ± 30) nm: ≤ 0,20 dB change (Initial and final attenuation must be within specified grade.) Return loss: ≥ 60 dB mated Details Method: EN 61300-2-1 Frequency range: 10 Hz to 55 Hz at octave/min Vibration amplitude: 0,75 mm No of sweeps 15 (10 - 55 - 10) No of axes: (orthogonal) Specimen optically functioning: Yes Measurements required: Before, during and after test, max sampling interval shall be ms (according to EN 61300-3-28) Pre-conditioning procedure: Clean plug and adaptor according to manufacturer's instructions BS EN 50377-4-2:2011 EN 50377-4-2:2011 – 24 – Table – Mechanical performance requirements (continued) No Test Mating durability Requirement Attenuation at (1 550 ± 30) nm: ≤ 0,20 dB change (Initial and final attenuation must be within specified grade.) Details Method: EN 61300-2-2 Mechanism to be cycled: Plug-adaptor Number of cycles: 500 (only one plug is subjected to successive engagement and separation) Return loss: Not less than s between engagements ≥ 60 dB mated Specimen optically functioning: Yes Measurements required: After every mating Pre-conditioning procedure: Clean plug and adaptor according to manufacturer's instructions Cleaning during test: Clean plug and adaptor according to manufacturer's instructions In the event that the attenuation increases above or the return loss below the allowable limit the connector may be cleaned as necessary but not more than 25 times during the course of the test (The measurement at which the cleaning takes place shall be discounted from the test results.) Fibre/cable retention Attenuation at (1 550 ± 30) nm: ≤ 0,20 dB change (Initial and final attenuation must be within specified grade.) Method: EN 61300-2-4 Magnitude and rate of application of the tensile force: Var 01: (5 ± 0,5) N at 0,5 N/s Var 02: (70 ± 2) N at N/s Var 03/06: (100 ± 2) N at N/s Point of application of the load: Var 01: 0,3 m from plug Var 02/06: On strength member 0,3 m from plug The connector shall be rigidly mounted such that the load is applied to the fibre/cable retention mechanism and not to the coupling mechanism Duration of max load: at 70 N and 100 N at N Specimen optically functioning: Yes Measurements required: Before, during (continuous) and after the test (5 recovery period) Sampling rate: Measurements shall be made after the load has been maintained at its maximum level for at least 30 s Pre-conditioning procedure: Clean plug and adaptor according to manufacturer's instructions Return loss: ≥ 60 dB mated BS EN 50377-4-2:2011 – 25 – EN 50377-4-2:2011 Table – Mechanical performance requirements (continued) No Test Strength of coupling mechanism Requirement Attenuation at (1 550 nm ± 30) nm: ≤ 0,20 dB change Impact EN 61300-2-6 Magnitude of load: Var 02/06: 40 N Duration of the load: Rate of application of the load: N/s max Return loss: (initial and final) Point of application of the load: 0,3 m from rear of plug ≥ 55 dB unmated and ≥ 60 dB mated Specimen optically functioning: Yes Measurements required: Before, during and after the test (5 recovery period) Sampling rate: Measurements shall be made after the load has been maintained at its maximum level for at least 30 s Pre-conditioning procedure: Clean plug and adaptor according to manufacturer's instructions Method: EN 61300-2-12, Method A Number of drops: Drop height: 1,5 m Specimen optically functioning: No (Specimen shall be unmated during impact test.) Measurements required: Before and after the test Pre-conditioning procedure: Fit dust cap Recovery procedure: Clean plug and adaptor according to manufacturer's instructions Method: EN 61300-2-5 Magnitude and rate of application of the torsional load: Var 01: N at 0,1 N/s Var 02/06: 15 N at N/s Duration of application of the load: 25 cycles ± 180° (not to exceed cable specification) Point of application of the load: 0,2 m from rear of plug body Specimen optically functioning: Yes Measurements required: Before, during (continuous) and after the test Sampling rate: Measurements shall be made after the load has been maintained at its maximum level for at least s Pre-conditioning procedure: Clean plugs and adaptors in accordance to manufacturer's instructions Recovery procedure: recovery period Attenuation at (1 550 ± 30) nm: (Initial and final attenuation must be within specified grade.) Return loss: ≥ 60 dB mated Torsion Method: (Initial and final attenuation must be ≤ specified for grade.) ≤ 0,20 dB change Details Attenuation at (1 550 ± 30) nm: ≤ 0,20 dB change (Initial and final attenuation must be within specified grade.) Return loss: ≥ 60 dB mated BS EN 50377-4-2:2011 EN 50377-4-2:2011 – 26 – Table – Mechanical performance requirements (continued) No 10 Test Flexing of the strain relief Requirement Attenuation at (1 550 ± 30) nm: Method: EN 61300-2-44 Magnitude of the load: Var 02/06: N No of cycles: 100 cycles (± 90°) ≤ 0,30 dB change during test Point of application of the load: 0,2 m from rear of plug body (Initial and final attenuation must be within specified grade.) Specimen optically functioning: Yes Measurements required: Before, during and after test, max sampling interval shall be ms, (according to EN 61300-3-28) Pre-conditioning procedure: Clean plug and adaptor according to manufacturer's instructions Recovery procedure: recovery period Method: EN 61300-2-42 Magnitude of the load: Var 02/06: N (90° to plug axis) Point of application of the load: 0,2 m from rear of plug Method of mounting: An adaptor shall be mounted rigidly to the mounting Duration of load: Var 02/06: h Specimen optically functioning: Yes Measurements required: Before, during (continuous) and after the test Sampling rate: Max interval: Pre-conditioning procedure: Clean plug and adaptor according to manufacturer's instructions Method: EN 61300-2-7 Magnitude of the load: 10 N smoothly applied Point of application of the load: 25 mm from the middle of the adaptor when the connectors are in the mated condition (see outline dimensions on the cover sheet) Return loss: Duration of the load: 25 s ≥ 60 dB mated Method of mounting: An adaptor shall be mounted rigidly to the mounting fixture Specimen optically functioning: Yes Measurements required: Before, during (continuous) and after the test Sampling rate: Measurements shall be made after the load has been maintained at its maximum level for at least s Pre-conditioning procedure: Clean adaptors and plugs in accordance to manufacturer’s instructions Method: EN 61300-3-10 Gauge dimensions and characteristics: See Figure Pre-conditioning procedure: Clean gauge and adaptor using manufacturers’ recommended practice ≤ 0,20 dB change before and after test Return loss: ≥ 60 dB mated 11 Static side load Attenuation at (1 550 ± 30) nm: ≤ 0,20 dB change (Initial and final attenuation must be within specified grade.) Return loss: ≥ 60 dB mated 12 Bending moment Attenuation at (1 550 ± 30) nm: ≤ 0,20 dB change (Initial and final attenuation must be within specified grade.) 13 Gauge retention force Details Allowable gauge retention force: max 5,9 N 2,0 N BS EN 50377-4-2:2011 – 27 – 8.4 EN 50377-4-2:2011 Environmental performance requirements Table – Environmental performance requirements No 14 Test Cold Requirement Method: EN 61300-2-17 Temperature: - 25 °C Duration of cycle: 96 h Specimen optically functioning: Yes Measurements required: Before, during (max interval h) and after the test Pre-conditioning procedure: Clean plug and adaptor according to manufacturer's instructions Recovery procedure: h at normal ambient conditions Method: EN 61300-2-18 Temperature: + 70 °C Duration of cycle: 96 h Specimen optically functioning: Yes Measurements required: Before, during (max interval h) and after the test Pre-conditioning procedure: Clean plug and adaptor according to manufacturer's instructions Recovery procedure: h at normal ambient conditions Method: EN 61300-2-22 Low temperature: - 25 °C High temperature: + 70 °C Duration at temperature extreme: 1h Patchcord requirement: Rate of change of temperature: °C/min ≤ 0,5 dB during and ≤ 0,4 after the test for m - m patchcords with both connectors and the cable in the climatic chamber Cable coil inside the chamber not smaller than 30 cm Number of cycles: 12 Specimen optically functioning: Yes Measurements required: Before, during (max interval 10 min) and after the test Pre-conditioning procedure: Clean plug and adaptor according to manufacturer's instructions Return loss: (initial and final) Recovery procedure: h at normal ambient conditions Attenuation at (1 550 ± 30) nm: ≤ 0,20 dB change (Initial and final attenuation must be within specified grade.) Return loss: ≥ 60 dB mated 15 Dry Heat Attenuation at (1 550 ± 30) nm: ≤ 0,20 dB change (Initial and final attenuation must be within specified grade.) Return loss: ≥ 60 dB mated 16 Change of temperature Details Attenuation at (1 550 ± 30) nm: ≤ 0,20 dB change (Initial and final attenuation must be ≤ specified for grade.) ≥ 60 dB mated BS EN 50377-4-2:2011 EN 50377-4-2:2011 – 28 – Table – Environmental performance requirements (continued) No 17 Test Dust Requirement Attenuation at (1 550 ± 30) nm: ≤ 0,20 dB change (Initial and final attenuation must be within specified grade.) Return loss: ≥ 60 dB mated 18 Salt mist Attenuation at (1 550 ± 30) nm: ≤ 0,20 dB change (Initial and final attenuation must be ≤ specified for grade.) Return loss: (initial and final) ≥ 55 dB unmated and ≥ 60 dB mated 19 Damp heat cyclic Attenuation at (1 550 ± 30) nm: ≤ 0,20 dB change (Initial and final attenuation must be within specified grade.) Return loss: ≥ 60 dB mated Details Method: EN 61300-2-27 Dust type: Talc Dust particle size: d < 150 µm Dust concentration: (10,6 ± 7) g/m³ Temperature: + 35 °C Relative humidity: 30 % Duration of exposure: 10 Specimen optically functioning: No Measurements required: Before and after the test Preconditioning procedure: Clean adaptors and plugs in accordance to manufacturer’s instructions Recovery procedure: h at normal ambient conditions Method: EN 61300-2-26 Atmosphere: Salt solution % NaCl – pH 6,5-7,2 Temperature: + 35 °C Duration of exposure: 96 h Specimen optically functioning: No Measurements required: Before and after the test Attenuation: According to Table Return loss: According to Table Preconditioning procedure: Clean adaptors and plugs in accordance to manufacturer’s instructions Recovery procedure: h at normal ambient conditions Method: EN 61300-2-46 High temperature: + 55 °C Low temperature: + 25 °C Relative humidity: > 95 % at low temperature and during temperature rise > 90 % at high temperature Duration of cycle: 24 h Number of cycles: Specimen optically functioning: Yes Measurements required: Before, during (max interval 10 min) and after the test Pre-conditioning procedure: Clean plug and adaptor according to manufacturer's instructions Recovery procedure: h at normal ambient conditions BS EN 50377-4-2:2011 – 29 – EN 50377-4-2:2011 Annex A (informative) Attenuation against reference A.1 Test details Attenuation measurement tests against reference connectors (EN 61300-3-4) are intended to be performed should quality conformance be required When these measurements are required the following test details are valid Table A.1 – Test details for reference connectors Test Attenuation (against reference connector) A.2 Requirement Grade B: ≤ 0,25 dB Grade C: ≤ 0,5 dB Details Method: EN 61300-3-4, Method B Source type: LED/LD Peak wavelength: (1 310 ± 30) nm and (1 550 ± 30) nm Source stability: ≤ ± 0,01 Detector linearity: Within ± 0,01 dB over the dynamic range to be measured Launch fibre length: > Pre-conditioning procedure: Clean plug and adaptor according to manufacturer's instructions dB over the measuring period or at least h m - Only the fundamental mode shall propagate at the connector interface to be tested and at the detector Reference connector details Ferrule outer diameter (2,499 ± 0,000 5) mm Eccentricity of fibre core centre to ferrule centre ≤ 0,000 Deviation of axis of fibre to axis of ferrule ≤ 0,2° Dome offset of spherically polished ferrule endface ≤ 30 Visual examination of fibre endface with ×200 magnification No defects in core zone Attenuation between two reference plugs at 310 nm ≤ 0,10 Visual examination Every 50 matings mm µm dB BS EN 50377-4-2:2011 EN 50377-4-2:2011 – 30 – Annex B (normative) Adaptor matched reference plug details Ferrule outer diameter (2,499 ± 0,000 5) mm Eccentricity of fibre core centre to ferrule centre ≤ 0,000 Deviation of axis of fibre to axis of ferrule ≤ 0,2° Dome offset of spherically polished ferrule endface ≤ 30 µm Visual examination of fibre endface with ×200 magnification No defects in core zone Attenuation between two matched reference plugs in a reference adaptor in all measuring positions ≤ Visual examination Every 50 matings mm 0,03 dB The matched reference plug shall have the same geometrical characteristics as the plug under test and is selected from products meeting the requirements from Annex A The visual examination shall be repeated every 50 matings BS EN 50377-4-2:2011 – 31 – EN 50377-4-2:2011 Annex C (normative) Sample size and product sourcing requirements Table C.1 – Sample size and product sourcing requirements No Test Sample size Source Plug Adaptor NA Endface geometry all NA New and after all tests are completed NA Dimensional 5 New Adaptor performance (between matched reference plugs) NA 20 New Attenuation (random mate) 20 10 New Return loss (random mate) 10 10 Test Vibration (sinusoidal) Test Mating durability Test Fibre/cable retention Test Strength of coupling mechanism Test 15 Impact Test Torsion Test 10 Flexing Test 11 Static side load Test 12 Bending moment Test 13 Gauge retention force NA Test 14 Cold Test 15 Dry heat Test 16 Change of temperature 4 Test 17 Dust Test 18 Salt mist Test 19 Damp heat (cyclic) Test pigtail patchcord The above tests are intended to be performed individually in any order on products sourced as defined Products from previous tests may be used BS EN 50377-4-2:2011 EN 50377-4-2:2011 – 32 – Annex D (informative) Zirconia ferrule response surface NOTE This graph is a qualitative representation only Figure D.1 – Radius vs undercut and apex offset BS EN 50377-4-2:2011 – 33 – EN 50377-4-2:2011 Bibliography EN 60794-2 Optical fibre cables – Part 2: Indoor cables – Sectional specification (IEC 60794-2) 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 61300-3-4 Part 3-4: Examinations and measurements – Attenuation (IEC 61300-3-4) EN 61300-3-35 Part 3-35: Examinations and measurements – Fibre optic connector endface visual and automated inspection (IEC 61300-3-35) EN 61754-4 Fibre optic connector interfaces – Part 4: Type SC connector family (IEC 61754-4) EN 61754-15 Fibre optic interconnecting devices and passive components – Fibre optic connector interfaces – Part 15: Type LSH connector family (IEC 61754-15) 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 61755-2-2 Fibre optic connector optical interfaces – Part 2-2: Optical interface standard single mode angled physically contacting fibres (IEC 61755-2-2) EN 61755-3-2:2009 Fibre optic connector optical interfaces – Part 3-2: Optical interface, 2,5 mm and 1,25 mm diameter cylindrical full zirconia ferrules for degrees angled-PC single mode fibres (IEC 61755-3-2:2006, mod + corr Jan 2009) ETSI EN 300 019 series Environmental Engineering (EE); Environmental conditions and environmental tests for telecommunications equipment 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 This page deliberately left blank This page deliberately left blank British Standards Institution (BSI) BSI is the independent national body responsible for preparing British Standards and other standards-related publications, information and services It presents the UK view on standards in Europe and at the international level It is incorporated by Royal Charter Revisions Information on standards British Standards are updated by amendment or revision Users of British Standards should make sure that 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