BS EN 61753-031-6:2014 BSI Standards Publication Fibre optic interconnecting devices and passive components — Performance standard Part 031- 6: Non-connectorised single-mode 1×N and 2×N non-wavelength-selective branching devices for Category O — Uncontrolled environment BS EN 61753-031-6:2014 BRITISH STANDARD National foreword This British Standard is the UK implementation of EN 61753-031-6:2014 It is identical to IEC 61753-031-6:2014 The UK participation in its preparation was entrusted by Technical Committee GEL/86, Fibre optics, to Subcommittee 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 © The British Standards Institution 2014 Published by BSI Standards Limited 2014 ISBN 978 580 73742 ICS 33.180.10 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 November 2014 Amendments/corrigenda issued since publication Date Text affected EUROPEAN STANDARD EN 61753-031-6 NORME EUROPÉENNE EUROPÄISCHE NORM October 2014 ICS 33.180.10 English Version Fibre optic interconnecting devices and passive components Performance standard - Part 031-6: Non-connectorized singlemode 1xN and 2xN non-wavelengthselective branching devices for Category O - Uncontrolled environment (IEC 61753-031-6:2014) Dispositifs d'interconnexion et composants passifs fibres optiques - Norme de performance Partie 031-6 : Dispositifs de couplage indépendants de la longueur d'onde 1×N et 2×N en unimodal nonconnectorisés pour la catégorie O - Environnement non contrôlé (CEI 61753-031-6:2014) Lichtwellenleiter - Verbindungselemente und passive Bauteile - Betriebsverhalten Teil 031-6: Nicht steckbare wellenlängenunabhängige Einmoden-1×N- und -2×N-Verzweiger für die Kategorie O Unkontrollierte Umgebung (IEC 61753-031-6:2014) This European Standard was approved by CENELEC on 2014-10-08 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, Former Yugoslav Republic of Macedonia, France, Germany, Greece, Hungary, Iceland, Ireland, Italy, Latvia, Lithuania, Luxembourg, Malta, the Netherlands, Norway, Poland, Portugal, Romania, 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: Avenue Marnix 17, B-1000 Brussels © 2014 CENELEC All rights of exploitation in any form and by any means reserved worldwide for CENELEC Members Ref No EN 61753-031-6:2014 E BS EN 61753-031-6:2014 EN 61753-031-6:2014 -2- Foreword The text of document 86B/3763/FDIS, future edition of IEC 61753-031-6, prepared by SC 86B “Fibre optic interconnecting devices and passive components” of IEC/TC 86 “Fibre optics" was submitted to the IEC-CENELEC parallel vote and approved by CENELEC as EN 61753-031-6:2014 The following dates are fixed: • latest date by which the document has to be implemented at national level by publication of an identical national standard or by endorsement (dop) 2015-07-08 • latest date by which the national standards conflicting with the document have to be withdrawn (dow) 2017-10-08 Attention is drawn to the possibility that some of the elements of this document may be the subject of patent rights CENELEC [and/or CEN] shall not be held responsible for identifying any or all such patent rights Endorsement notice The text of the International Standard IEC 61753-031-6:2014 was approved by CENELEC as a European Standard without any modification In the official version, for Bibliography, the following notes have to be added for the standards indicated: IEC 60875-1 NOTE Harmonized as EN 60875-1 IEC 61753-1 NOTE Harmonized as EN 61753-1 -3- BS EN 61753-031-6:2014 EN 61753-031-6:2014 Annex ZA (normative) Normative references to international publications with their corresponding European publications The following documents, in whole or in part, are normatively referenced in this document and are indispensable for its application For dated references, only the edition cited applies For undated references, the latest edition of the referenced document (including any amendments) applies NOTE When an International Publication has been modified by common modifications, indicated by (mod), the relevant EN/HD applies NOTE Up-to-date information on the latest versions of the European Standards listed in this annex is available here: www.cenelec.eu Publication Year Title EN/HD Year IEC 60793-2-50 2012 Optical fibres Part 2-50: Product specifications Sectional specification for class B singlemode fibres EN 60793-2-50 2013 IEC 61300-2-1 - Fibre optic interconnecting devices and passive components - Basic test and measurement procedures Part 2-1: Tests - Vibration (sinusoidal) EN 61300-2-1 - IEC 61300-2-4 - Fibre optic interconnecting devices and passive components - Basic test and measurement procedures Part 2-4: Tests - Fibre/cable retention EN 61300-2-4 - IEC 61300-2-5 - Fibre optic interconnecting devices and passive components - Basic test and measurement procedures Part 2-5: Tests - Torsion EN 61300-2-5 - IEC 61300-2-9 - Fibre optic interconnecting devices and passive components - Basic test and measurement procedures Part 2-9: Tests - Shock EN 61300-2-9 - IEC 61300-2-14 - Fibre optic interconnecting devices and passive components - Basic test and measurement procedures Part 2-14: Tests - High optical power EN 61300-2-14 - IEC 61300-2-19 - Fibre optic interconnecting devices and passive components - Basic test and measurement procedures Part 2-19: Tests - Damp heat (steady state) EN 61300-2-19 - IEC 61300-2-22 - Fibre optic interconnecting devices and EN 61300-2-22 passive components - Basic test and measurement procedures Part 2-22: Tests - Change of temperature - BS EN 61753-031-6:2014 EN 61753-031-6:2014 -4- Publication Year Title EN/HD IEC 61300-2-42 - Fibre optic interconnecting devices and EN 61300-2-42 passive components - Basic test and measurement procedures Part 2-42: Tests - Static side load for strain relief - IEC 61300-2-44 - Fibre optic interconnecting devices and EN 61300-2-44 passive components - Basic test and measurement procedures Part 2-44: Tests - Flexing of the strain relief of fibre optic devices - IEC 61300-2-48 2009 Fibre optic interconnecting devices and passive components - Basic test and measurement procedures Part 2-48: Tests - Temperature-humidity cycling 2009 IEC 61300-3-2 2009 Fibre optic interconnecting devices and EN 61300-3-2 passive components - Basic test and measurement procedures Part 3-2: Examinations and measurements - Polarization dependent loss in a singlemode fibre optic device 2009 IEC 61300-3-3 2009 Fibre optic interconnecting devices and EN 61300-3-3 passive components - Basic test and measurement procedures Part 3-3: Examinations and measurements - Active monitoring of changes in attenuation and return loss 2009 IEC 61300-3-6 2008 Fibre optic interconnecting devices and EN 61300-3-6 passive components - Basic test and measurement procedures Part 3-6: Examinations and measurements - Return loss 2009 IEC 61300-3-7 (mod) 2009 Fibre optic interconnecting devices and EN 61300-3-7 passive components - Basic test and measurement procedures Part 3-7: Examinations and measurements - Wavelength dependence of attenuation and return loss of single mode components 2012 IEC 61300-3-20 - Fibre optic interconnecting devices and passive components - Basic test and measurement procedures Part 3-20: Examinations and measurements - Directivity of fibre optic branching devices EN 61300-3-20 - IEC 61300-3-28 - Fibre optic interconnecting devices and passive components - Basic test and measurement procedures Part 3-28: Examinations and measurements - Transient loss EN 61300-3-28 - EN 61300-2-48 Year –2– BS EN 61753-031-6:2014 IEC 61753-031-6:2014 © IEC 2014 CONTENTS NOTICE Scope Normative references Test Test report Performance requirements 5.1 5.2 5.3 Dimensions Sample size, sequencing and grouping Test details and requirements Annex A (normative) A and U requirements of × N and × N NWBDs 16 A.1 Attenuation and uniformity requirements of 1×N and 2×N NWBDs calculated by the equations of Tests No.1 and 16 A.2 Minimum requirements at room temperature of attenuation values for balanced bidirectional × N and × N NWBD 17 Annex B (normative) Sequencing and grouping of tests 19 Bibliography 20 Table – Test details and requirements (1 of 6) Table A.1 – Attenuation and uniformity requirements of balanced bidirectional NWBD having the most common port configurations for Class A, with the underlying formulas as specified in the Tests and of Table 16 Table A.2 – Attenuation and uniformity requirements of balanced bidirectional NWBD having the most common port configurations for Class B, with the underlying formulas as specified in the Test 1s and of Table 17 Table A.3 – Attenuation requirements of 1×2 and 2×2 unbalanced NWBD having the most common port configurations, with the underlying formula as specified in the Test of Table 17 Table A.4 – Minimum requirements at room temperature of attenuation values for Class A balanced bidirectional NWBD 18 Table A.5 – Minimum requirements at room temperature of attenuation values for Class A balanced bidirectional NWBD 18 Table B.1 – Sample size for each test 19 BS EN 61753-031-6:2014 IEC 61753-031-6:2014 © IEC 2014 –5– NOTICE This document contains material that is Copyright © 2006, Telcordia Technologies, Inc ("Telcordia") All rights reserved The reader is advised that this IEC document and Telcordia source(s) may differ, and the context and use of said material in this IEC document may differ from that of Telcordia TELCORDIA MAKES NO REPRESENTATION OR WARRANTY, EXPRESS OR IMPLIED, WITH RESPECT TO THE SUFFICIENCY, ACCURACY, OR UTILITY OF ANY INFORMATION OR OPINION CONTAINED HEREIN ANY USE OF OR RELIANCE UPON SAID INFORMATION OR OPINION IS AT THE RISK OF THE USER TELCORDIA SHALL NOT BE LIABLE FOR ANY DAMAGE OR INJURY INCURRED BY ANY PERSON ARISING OUT OF THE SUFFICIENCY, ACCURACY, OR UTILITY OF ANY INFORMATION OR OPINION CONTAINED HEREIN –6– BS EN 61753-031-6:2014 IEC 61753-031-6:2014 © IEC 2014 FIBRE OPTIC INTERCONNECTING DEVICES AND PASSIVE COMPONENTS – PERFORMANCE STANDARD – Part 031-6: Non-connectorized single-mode 1×N and 2×N non-wavelength-selective branching devices for Category O – Uncontrolled environment Scope This part of IEC 61753 contains the minimum initial tests and measurement requirements and severities which a non-wavelength selective branching device (NWBD) should satisfy in order to be categorized as meeting the requirements of this standard The requirements cover balanced bidirectional non-connectorized single-mode 1×N and 2×N non-wavelength-selective branching devices for use in an IEC category O environment (N is the number of branching ports), especially but not exclusively used for PON application For balanced NWBD, two attenuation and uniformity performance classes are considered: class A (premium class) which meets more restrictive requirements (i.e for extended reach PON application) and class B (standard class) for standard application (i.e normal reach PON application) The requirements also cover unbalanced bidirectional non-connectorized single-mode nonwavelength-selective branching devices, however the specifications of unbalanced branching devices are limited to × and × devices because they are the most commonly used Normative references The following documents, in whole or in part, are normatively referenced in this document and are indispensable for its application For dated references, only the edition cited applies For undated references, the latest edition of the referenced document (including any amendments) applies Optical fibres – Part specification for class B single-mode fibres IEC 60793-2-50:2012, 2-50: Product specifications – Sectional IEC 61300-2-1, Fibre optic interconnecting devices and passive components – Basic test and measurement procedures – Part 2-1: Tests – Vibration (sinusoidal) IEC 61300-2-4, Fibre optic interconnecting devices and passive components – Basic test and measurement procedures – Part 2-4: Tests – Fibre/cable retention IEC 61300-2-5, Fibre optic interconnecting devices and passive components – Basic test and measurement procedures – Part 2-5: Tests – Torsion IEC 61300-2-9, Fibre optic interconnecting devices and passive components – Basic test and measurement procedures – Part 2-9: Tests – Shock IEC 61300-2-14, Fibre optic interconnecting devices and passive components – Basic test and measurement procedures – Part 2-14: Tests – High optical power BS EN 61753-031-6:2014 IEC 61753-031-6:2014 © IEC 2014 –7– IEC 61300-2-19, Fibre optic interconnecting devices and passive components – Basic test and measurement procedures – Part 2-19: Tests – Damp heat (steady state) IEC 61300-2-22, Fibre optic interconnecting devices and passive components – Basic test and measurement procedures – Part 2-22: Tests – Change of temperature IEC 61300-2-42, Fibre optic interconnecting devices and passive components – Basic test and measurement procedures – Part 2-42: Tests – Static side load for connectors IEC 61300-2-44, 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 61300-2-48:2009, Fibre optic interconnecting devices and passive components – Basic test and measurement procedures – Part 2-48: Tests – Temperature-humidity cycling IEC 61300-3-2:2009, Fibre optic interconnecting devices and passive components – Basic test and measurement procedures – Part 3-2: Examination and measurements – Polarization dependent loss in a single-mode fibre optic device IEC 61300-3-3:2009, 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 61300-3-6:2008, Fibre optic interconnecting devices and passive components – Basic test and measurement procedures – Part 3-6: Examinations and measurements – Return loss IEC 61300-3-7:2009, Fibre optic interconnecting devices and passive components – Basic test and measurement procedures – Part 3-7: Examinations and measurements – Wavelength dependence of attenuation and return loss of single mode components IEC 61300-3-20, Fibre optic interconnecting devices and passive components – Basic test and measurement procedures – Part 3-20: Examinations and measurements – Directivity of fibre optic branching devices IEC 61300-3-28, Fibre optic interconnecting devices and passive components – Basic test and measurement procedures – Part 3-28: Examinations and measurements – Transient loss Test All test methods are selected within the IEC 61300 series The samples for tests shall be terminated onto single-mode fibres according to category B1.1, B1.3, or B.6 of IEC 60793-2-50:2012 in either coated fibres (primary and secondary) or reinforced cable format All tests shall be carried out to validate performance over one of the spectral bands listed below: 1) Spectral bands I: 260 nm to 360 nm 480 nm to 625 nm 2) Spectral bands II: 260 nm to 360 nm 480 nm to 660 nm No Tests B ≤ 0,5 + 3,5log N (dB) ≤ 0,5 + 3,4log N (dB) ≤ 0,1 + 0,3log N (dB) ≤ 0,1 + 0,4log N (dB) Spectral band II A B ≤ 0,2 + 0,4log N (dB) ≤ 0,2 + 0,3log N (dB) 1xN Spectral band I Performance Class Configuration IEC 61300-37:2009 (Method A) Balanced NWBD Spectral band II Spectral band I 1xN Requirements ≤ 0,7 + 3,5log N (dB) ≤ 0,7 + 3,4log N (dB) A ≤ 0,7 + 3,5log N (dB) B ≤ 0,7 + 3,6log N (dB)] 2xN ≤ 0,4 + 0,5log N (dB) ≤ 0,4 + 0,4log N (dB) A B ≤ 0,5 + 0,5log N (dB) ≤ 0,5 + 0,4log N (dB) 2xN ≤ 22 – 10,5log 10 P (dB)] where P is the nominal percentage of power associated with one port ≤ 0,5 + 3,4log N (dB) Spectral band II Unbalanced NWBD ≤ 0,5 + 3,3log N (dB) A Spectral band I Performance class Uniformity (U) (Method A) IEC 61300-37:2009 (Insertion loss) Configuration Attenuation (A) Balanced NWBD Table – Test details and requirements (1 of 7) The wavelength of the source shall be longer than the cutoff wavelength of the fibre ≤ ± 0,05 dB Launch conditions Uncertainty See Tables A.1 and A.2 for example The measurement should be performed with all combination of input/output ports Unpolarized See Tables A.1, A.2 and A.3 for example ≥2m Source type Launch patchcord length ≤ ± 0,05 dB Uncertainty The measurement should be performed with all combination of input/output ports The wavelength of the source shall be longer than the cutoff wavelength of the fibre Unpolarized ≥2m Details Launch conditions Source type Launch patchcord length BS EN 61753-031-6:2014 IEC 61753-031-6:2014 © IEC 2014 –9– – 10 – BS EN 61753-031-6:2014 IEC 61753-031-6:2014 © IEC 2014 Table (2 of 7) No Tests Directivity Requirements Details Launch patchcord length Source type Launch conditions ≥ 55 dB IEC 61300-3-20 Uncertainty Return loss (RL) Launch patchcord length ≥ 55 dB IEC 61300-3-6:2008 (Method 1, OCWR) Polarization dependent loss (PDL) For balanced NWBD: IEC 61300-3-2:2009 N≤4 ≤ 0,2 dB ≤ 0,3 dB 416 ≤ 0,4 dB ≤ 0,5 dB 1×N 2×N For unbalanced 1×2 and 2×2 NWBD and for any pair of input and output ports: ≤ 0,7 – 0,25log 10 P (dB) Where P is the nominal percentage of the power associated with one port ≥2m LD The wavelength of the source shall be longer than the cutoff wavelength of the fibre ≤ ± dB The measurement should be made between all pairs of Input/output ports All ports not under test shall be terminated to avoid unwanted reflections contributing to the measurement ≥2m Source type LD Launch conditions The wavelength of the source shall be longer than the cutoff wavelength of the fibre Uncertainty ≤ ± dB The measurement should be performed with all combination of input/output ports All ports not under test shall be terminated to avoid unwanted reflections contributing to the measurement ≥2m Launch patchcord length Source type LD Uncertainty ≤ ± 0,05 dB The measurement should be performed with all combination of input/output ports BS EN 61753-031-6:2014 IEC 61753-031-6:2014 © IEC 2014 – 11 – Table (3 of 7) No Tests Requirements High optical power P max = 500 mW (+27 dBm) per port only Launch patchcord length one at the time ≥2m IEC 61300-2-14 During the test the change in A shall be Source type within ± 0,5 dB of the original value under ambient conditions, while on Launch completion of the test the change in A conditions shall be within ± 0,3 dB of the original value Unpolarized During and on completion of the test the RL limit of Test No shall be met Details Uncertainty A test ≤ ± 0,05 dB Uncertainty RL test ≤ ± dB Test wavelength Spectral band I 310 nm ± 20 nm 550 nm ± 20 nm Test wavelength Spectral band II Duration of the optical power exposure at the each level Damp heat (steady state) IEC 61300-2-19 The wavelength of the source shall be longer than the cutoff wavelength of the fibre 310 nm ± 20 nm 625 nm ± 20 nm 30 For balanced and unbalanced NWBD before and on completion of the test the A limits of Test No shall be met Temperature The measurement shall be performed between the common port (input port) and the output ports + 75 °C ± °C Relative humidity 90 % + % In addition during the test the change in A of balanced NWBD shall be within ± 0,3 dB for N ≤ and within ± 0,5 dB for N > of the original value under ambient conditions For unbalanced NWBD the change in A during the test shall be within ± 0,3 dB for P % > % and ±0,5 dB for P % ≤ % of the original value Duration of exposure 168 h During and after the test the RL limit of Test No shall be met Specimens shall be optically functioning A and RL shall be measured before the test, during the test at a maximum interval of 10 and after the test by the Method of IEC 61300-3-3:2009 – 12 – BS EN 61753-031-6:2014 IEC 61753-031-6:2014 © IEC 2014 Table (4 of 7) No Tests Vibration (sinusoidal) IEC 61300-2-1 Requirements For balanced and unbalanced NWBD before and on completion of the test the A limits of Test No shall be met In addition during the test the change in A of balanced NWBD shall be within ± 0,3 dB for N ≤ and within ± 0,5 dB for N > of the initial value For unbalanced NWBD the change in A during the test shall be within ± 0,3 dB for P % > % and within ±0,5 dB for P % ≤ % of the initial value During and after the test the RL limit of Test No shall be met Shock IEC 61300-2-9 Details Frequency range 10 Hz to 55 Hz Number of axes orthogonal Duration per axis Rate of change Vibration amplitude For balanced and unbalanced NWBD Acceleration before and on completion of the test the A forces limits of Test No shall be met In addition on completion of the test the change in A of balanced NWBD shall be within ± 0,3 dB for N ≤ and within ± 0,5 dB for N > of the initial value For unbalanced NWBD the change in A after the test shall be within ± 0,3 dB for P % > % and within ± 0,5 dB for P % ≤ % of Nominal the initial value duration After the test the RL limit of Test No shall be met No of shocks 2h octave/min 1,52 mm NWBD shall be optically functioning A and RL shall be measured before and after the test by means the set-ups defined in Test No and No In addition during the test the change in A shall be measured by IEC 61300-3-28 (transient loss) at 550 nm ± 25 nm Components: 000 m/s for mass ≤ 0,125 kg Modules: 000 m/s for: 0,125 kg < mass ≤ 0,225 kg 500 m/s for: 0,225 kg < mass ≤ kg ms, half sine pulse axes in directions, shocks per axis, 12 shocks total NWBD shall be optically functioning A and RL shall be measured before and after the test by means the set-ups defined in Tests No and No BS EN 61753-031-6:2014 IEC 61753-031-6:2014 © IEC 2014 – 13 – Table (5 of 7) No 10 Tests Change of temperature IEC 61300-2-22 Requirements Details For balanced and unbalanced NWBD High before and on completion of the test the A temperature limits of Test No shall be met Low In addition during the test the change in A temperature of balanced NWBD shall be within ± 0,3 dB Duration at for N ≤ and within ± 0,5 dB for N > of the original value under ambient conditions extreme temperature For unbalanced NWBD the change in A during the test shall be within ± 0,3 dB for Temperature P % > % and ±0,5 dB for P % ≤ % of rate of change the original value + 75 °C ± °C During and after the test the RL limit of Test No shall be met 10 Number of cycles – 40 °C ± °C 1h ≥ °C/min Dwell at +23 °C allowed between temperature extremes 11 Temperature humidity cycling IEC 61300-248:2009 (Method A) For balanced and unbalanced NWBD High before and on completion of the test the A temperature: limits of Test No shall be met Low In addition during the test the change in A temperature of balanced NWBD shall be within ± 0,3 dB for N ≤ and within ± 0,5 dB for N > of Relative the original value under ambient conditions humidity at the For unbalanced NWBD the change in A maximum during the test shall be within ± 0,3 dB for temperature P % > % and ±0,5 dB for P % ≤ % of Duration at the original value extreme During and after the test the RL limit of temperatures Test No shall be met Temperature rate of change: Number of cycles: Specimens shall be optically functioning A and RL shall be measured before the test, during the test at a maximum interval of 10 and after the test by the Method of IEC 61300-33:2009 + 85 °C ± °C – 40 °C ± °C 85 % ± % h ≥ °C/min 42 Specimens shall be optically functioning A and RL shall be measured before the test, during the test at a maximum interval of 10 and after the test by the Method of IEC 61300-33:2009 – 14 – BS EN 61753-031-6:2014 IEC 61753-031-6:2014 © IEC 2014 Table (6 of 7) No 12 Tests Requirements Details Flexing of strain relief of fibre optic devices For balanced and unbalanced NWBD before Magnitude of the load and on completion of the test the A limits of Test No shall be met IEC 61300-2-44 In addition on completion of the test the change in A of balanced NWBD shall be within ± 0,3 dB for N ≤ and within ± 0,5 dB for N > of the initial value For unbalanced NWBD the change in A after the test shall Number of cycles be within ± 0,3 dB for P % > % and within ± 0,5 dB for P % ≤ % of the initial value After the test the RL limit of Test No shall be met 13 Torsion/twist IEC 61300-2-5 For balanced and unbalanced NWBD before Magnification and on completion of the test the A limits of and rate of application of Test No shall be met the tensile In addition on completion of the test the load change in A of balanced NWBD shall be within ± 0,3 dB for N ≤ and within ± 0,5 dB for N > of the initial value For unbalanced NWBD the change in A after the test shall be within ± 0,3 dB for P % > % and within ± 0,5 dB for P % ≤ % of the initial value N at a speed of 0,1 N/s for reinforced cables After the test the RL limit of Test No shall Point of be met application of the load 0,2 m from the end of the device Number of cycles 14 Static side load IEC 61300-2-42 For balanced and unbalanced NWBD before Magnitude of and on completion of the test the A limits of the load Test No shall be met In addition on completion of the test the change in A of balanced NWBD shall be within ± 0,3 dB for N ≤ and within ± 0,5 dB Point of for N > of the initial value For unbalanced application of NWBD the change in A after the test shall tensile load be within ± 0,3 dB for P % > % and within ± 0,5 dB for P % ≤ % of the initial value After the test the RL limit of Test No shall be met N at a speed of 0,1 N/s for secondary and primary coated fibres For primary coated fibre the test can be omitted 10 cycles at ± 180° NWBD shall be optically functioning A and RL shall be measured before and after the test by means the set-ups defined in Tests No and No N for s for reinforced cable; 2,3 N for s for primary and secondary coated fibre 0,3 m from the end of the device The test shall be done on two mutually perpendicular directions as permitted by the product design NWBD shall be optically functioning A and RL shall be measured before and after the test by means the set-ups defined in Tests No and No BS EN 61753-031-6:2014 IEC 61753-031-6:2014 © IEC 2014 – 15 – Table (7 of 7) No 15 Tests Requirements Details Fibre/cable retention For balanced and unbalanced NWBD before Magnitude and and on completion of the test the A limits of rate of IEC 61300-2-4 application of Test No shall be met the tensile In addition on completion of the test the load change in A of balanced NWBD shall be within ± 0,3 dB for N ≤ and within ± 0,5 dB for N > of the initial value For unbalanced NWBD the change in A after the test shall be within ± 0,3 dB for P % > % and within Point of ± 0,5 dB for P % ≤ % of the initial value application of After the test the RL limit of Test No shall tensile load be met Duration of the test (maintaining the load) 10 N ± N at a speed of 0,5 N/s for reinforced cable N ± 0,5 N at a speed of 0,5 N/s for primary and secondary coated fibres 0,3 m from the from the exit point of the fibre/cable from the NWBD 120 s at 10 N; 60 s at N NWBD shall be optically functioning A and RL shall be measured before and after the test by means the set-ups defined in Tests No and No BS EN 61753-031-6:2014 IEC 61753-031-6:2014 © IEC 2014 – 16 – Annex A (normative) A and U requirements of × N and × N NWBDs A.1 Attenuation and uniformity requirements of 1×N and 2×N NWBDs calculated by the equations of Tests No.1 and Tables A.1, A.2 and A.3 show the attenuation and uniformity requirements for different classes with the underlying formulas as specified in the Tests and of Table Table A.1 – Attenuation and uniformity requirements of balanced bidirectional NWBD having the most common port configurations for Class A, with the underlying formulas as specified in the Tests and of Table N 1×N 2×N Spectral band I Spectral band II Spectral band I Spectral band II A max (dB) U max (dB) A max (dB) U max (dB) A max (dB) U max (dB) A max (dB) U max (dB) 0,5+3,3log N 0,1+0,3log N 0,5+3,4log N 0,1+0,4log N 0,7+3,4log N 0,4+0,4log N 0,7+3,5log N 0,4+0,5log N 3,8 0,4 3,9 0,5 4,1 0,8 4,2 0,9 5,7 0,6 5,9 0,7 6,1 1,0 6,2 1,2 7,1 0,7 7,3 0,9 7,5 1,2 7,7 1,4 9,0 0,9 9,3 1,1 9,5 1,4 9,7 1,7 10,4 1,0 10,7 1,3 10,9 1,6 11,2 1,9 12 12,3 1,2 12,7 1,5 12,9 1,8 13,2 2,2 16 13,7 1,3 14,1 1,7 14,3 2,0 14,7 2,4 24 15,6 1,5 16,1 1,9 16,3 2,2 16,7 2,7 32 17,0 1,6 17,5 2,1 17,7 2,4 18,2 2,9 64 20,3 1,9 20,9 2,5 21,1 2,8 21,7 3,4 128 23,6 2,2 24,3 2,9 24,5 3,2 25,2 3,9 NOTE N is the number of branching ports BS EN 61753-031-6:2014 IEC 61753-031-6:2014 © IEC 2014 – 17 – Table A.2 – Attenuation and uniformity requirements of balanced bidirectional NWBD having the most common port configurations for Class B, with the underlying formulas as specified in the Test and of Table N 1×N 2×N Spectral band I Spectral band II Spectral band I Spectral band II A max (dB) U max (dB) A max (dB) U max (dB) A max (dB) U max (dB) A max (dB) U max (dB) 0,5+3,4log N 0,2+0,3log N 0,5+3,5log N 0,2+0,4log N 0,7+3,5log N 0,5+0,4log N 0,7+3,6log N 0,5+0,5log N 3,9 0,5 4,0 0,6 4,2 0,9 4,3 1,0 5,9 0,7 6,0 0,8 6,2 1,1 6,4 1,3 7,3 0,8 7,5 1,0 7,7 1,3 7,9 1,5 9,3 1,0 9,5 1,2 9,7 1,5 10,0 1,8 10,7 1,1 11,0 1,4 11,2 1,7 11,5 2,0 12 12,7 1,3 13,0 1,6 13,2 1,9 13,6 2,3 16 14,1 1,4 14,5 1,8 14,7 2,1 15,1 2,5 24 16,1 1,6 16,5 2,0 16,7 2,3 17,2 2,8 32 17,5 1,7 18,0 2,2 18,2 2,5 18,7 3,0 64 20,9 2,0 21,5 2,6 21,7 2,9 22,3 3,5 128 24,3 2,3 25,0 3,0 25,2 3,3 25,9 4,0 NOTE N is the number of branching ports Table A.3 – Attenuation requirements of 1×2 and 2×2 unbalanced NWBD having the most common port configurations, with the underlying formula as specified in Test of Table Coupling ratio P %/P % A1 max /A2 max dB (22 – 10,5log 10 P )/(22 – 10,5log 10 P ) A.2 40/60 5,2 / 3,.3 30/70 6,5 / 2,6 20/80 8,3 / 2,0 10/90 11,5 / 1,5 5/95 14,7 / 1,2 2/98 18,8 / 1,1 1/99 22,0 / 1,0 Minimum requirements at room temperature of attenuation values for balanced bidirectional × N and × N NWBD Tables A.4 and A.5 show the minimum requirements at room temperature of attenuation values for different classes – 18 – BS EN 61753-031-6:2014 IEC 61753-031-6:2014 © IEC 2014 Table A.4 – Minimum requirements at room temperature of attenuation values for Class A balanced bidirectional NWBD N 1×N 2×N Spectral band I Spectral band II Spectral band I Spectral band II A max (dB) A max (dB) A max (dB) A max (dB) 0,5+3,2log N 0.5+3,3log N 0,7+3,3log N 0,7+3,4log N 3,7 3,8 4,0 4,1 5,6 5,7 5,9 6,1 6,9 7,1 7,3 7,5 8,8 9,0 9,2 9,5 10,1 10,4 10,6 10,9 12 12,0 12,3 12,5 12,9 16 13,3 13,7 13,9 14,3 24 15,2 15,6 15,8 16,3 32 16,5 17,0 17,2 17,7 64 19,7 20,3 20,5 21,1 128 22,9 23,6 23,8 24,5 NOTE N is the number of branching ports Table A.5 – Minimum requirements at room temperature of attenuation values for Class A balanced bidirectional NWBD N 1×N 2×N Spectral band I Spectral band II Spectral band I Spectral band II A max (dB) A max (dB) A max (dB) A max (dB) 0,5+3,3log N 0.5+3,4log N 0,7+3,4log N 0,7+3,5log N 3,8 3,9 4,1 4,2 5,7 5,9 6,1 6,2 7,1 7,3 7,5 7,7 9,0 9,3 9,5 9,7 10,4 10,7 10,9 11,2 12 12,3 12,7 12,9 13,2 16 13,7 14,1 14,3 14,7 24 15,6 16,1 16,3 16,7 32 17,0 17,5 17,7 18,2 64 20,3 20,9 21,1 21,7 128 23,6 24,3 24,5 25,2 NOTE N is the number of branching ports BS EN 61753-031-6:2014 IEC 61753-031-6:2014 © IEC 2014 – 19 – Annex B ( normative) Sequencing and grouping of tests The sample size for each test is shown in Table B.1 Test groups and sequences shall be performed in sequential order as described in the table The samples are sourced as defined Table B.1 – Sample size for each test Test number Test Sample size Test from which samples are sourced Attenuation (insertion loss) 12 NEW Uniformity 12 Directivity 12 Return loss 12 Polarization dependent loss 12 High optical power Damp heat (steady state) Vibration Shock 10 Change of temperature 11 Temperature humidity cycling 10 12 Flexing of strain relief of fibre optic devices 11 13 Torsion/twist 12 14 Static side load 13 15 Fibre/cable retention 14 Group – 20 – BS EN 61753-031-6:2014 IEC 61753-031-6:2014 © IEC 2014 Bibliography IEC 60875-1, Fibre optic interconnecting devices and passive optical components – Nonwavelength-selective fibre optic branching devices – Part 1: Generic specification IEC 61753-1, Fibre optic interconnecting devices and passive components performance standard – Part 1: General and guidance for performance standard Recommendation ITU-T G.671, Transmission characteristics of optical components and subsystem This page deliberately left blank This page deliberately left blank NO COPYING WITHOUT BSI PERMISSION EXCEPT AS PERMITTED BY COPYRIGHT LAW British Standards Institution (BSI) BSI is the national body responsible for preparing British Standards and other standards-related publications, information and services BSI is 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