1、BSI Standards PublicationBS EN 4531-201:2016Aerospace series Connectors, optical, circular,single and multipin, coupledby triple start threaded ring Flush contactsPart 201: Optical contact for EN 4641singlemode cable -55 C to 125 C Product standardBS EN 4531-201:2016 BRITISH STANDARDNational forewor
2、dThis British Standard is the UK implementation of EN 4531-201:2016.The UK participation in its preparation was entrusted to TechnicalCommittee ACE/6, Aerospace avionic electrical and fibre optictechnology.A list of organizations represented on this committee can beobtained on request to its secreta
3、ry.This publication does not purport to include all the necessaryprovisions of a contract. Users are responsible for its correctapplication. The British Standards Institution 2016. Published by BSI StandardsLimited 2016ISBN 978 0 580 89608 8ICS 49.090Compliance with a British Standard cannot confer
4、immunity fromlegal obligations.This British Standard was published under the authority of theStandards Policy and Strategy Committee on 30 April 2016.Amendments issued since publicationDate Text affectedEUROPEAN STANDARD NORME EUROPENNE EUROPISCHE NORM EN 4531-201 January 2016 ICS 49.090 English Ver
5、sion Aerospace series - Connectors, optical, circular, single and multipin, coupled by triple start threaded ring - Flush contacts - Part 201: Optical contact for EN 4641 singlemode cable -55 C to 125 C - Product standard Srie arospatiale - Connecteurs optiques circulaires accouplement par bague fil
6、ete trois filets - Contacts affleurants - Partie 201: Contact optique pour cble monomode EN 4641 - 55 C 125 C - Norme de produit Luft- und Raumfahrt - Optische Rundsteckverbinder mit dreigngiger Schraubkupplung - Bndige Kontakte - Teil 201: Optischer Kontakt fr EN 4641-Monomodekabel, -55 C bis 125 C
7、 - Produktnorm This European Standard was approved by CEN on 8 June 2015. CEN 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 bibliogr
8、aphical references concerning such national standards may be obtained on application to the CEN-CENELEC Management Centre or to any CEN member. This European Standard exists in three official versions (English, French, German). A version in any other language made by translation under the responsibi
9、lity of a CEN member into its own language and notified to the CEN-CENELEC Management Centre has the same status as the official versions. CEN members are the national standards bodies of Austria, Belgium, Bulgaria, Croatia, Cyprus, Czech Republic, Denmark, Estonia, Finland, Former Yugoslav Republic
10、 of Macedonia, France, Germany, Greece, Hungary, Iceland, Ireland, Italy, Latvia, Lithuania, Luxembourg, Malta, Netherlands, Norway, Poland, Portugal, Romania, Slovakia, Slovenia, Spain, Sweden, Switzerland, Turkey and United Kingdom. EUROPEAN COMMITTEE FOR STANDARDIZATION COMIT EUROPEN DE NORMALISA
11、TION EUROPISCHES KOMITEE FR NORMUNG CEN-CENELEC Management Centre: Avenue Marnix 17, B-1000 Brussels 2016 CEN All rights of exploitation in any form and by any means reserved worldwide for CEN national Members. Ref. No. EN 4531-201:2016 EBS EN 4531-201:2016BS EN 4531-201:2016EN 4531-201:2016 (E) 2 C
12、ontents Page European Foreword 3 1 Scope 4 2 Normative references 4 3 Termini dimensions . 5 4 General dimensions of the optical termini 6 5 Technical specification 8 6 Tests according to EN 2591-100 8 7 Cleaning instructions . 9 8 Tooling 9 9 Termination instructions 10 10 Designation. 10 Bibliogra
13、phy . 11 BS EN 4531-201:2016EN 4531-201:2016 (E) 3 European Foreword This document (EN 4531-201:2016) has been prepared by the Aerospace and Defence Industries Association of Europe - Standardization (ASD-STAN). After enquiries and votes carried out in accordance with the rules of this Association,
14、this Standard has received the approval of the National Associations and the Official Services of the member countries of ASD, prior to its presentation to CEN. This European Standard shall be given the status of a national standard, either by publication of an identical text or by endorsement, at t
15、he latest by July 2016, and conflicting national standards shall be withdrawn at the latest by July 2016. Attention is drawn to the possibility that some of the elements of this document may be the subject of patent rights. CEN and/or CENELEC shall not be held responsible for identifying any or all
16、such patent rights. According to the CEN-CENELEC Internal Regulations, the national standards organizations of the following countries are bound to implement this European Standard: Austria, Belgium, Bulgaria, Croatia, Cyprus, Czech Republic, Denmark, Estonia, Finland, Former Yugoslav Republic of Ma
17、cedonia, France, Germany, Greece, Hungary, Iceland, Ireland, Italy, Latvia, Lithuania, Luxembourg, Malta, Netherlands, Norway, Poland, Portugal, Romania, Slovakia, Slovenia, Spain, Sweden, Switzerland, Turkey and the United Kingdom. BS EN 4531-201:2016EN 4531-201:2016 (E) 4 1 Scope This standard def
18、ines the performance and dimensions of optical PC profiled contact for singlemode 9 micrometres/125 micrometres fibre and (1,8 0,1) mm diameter cable. 2 Normative references The following documents, in whole or in part, are normatively referenced in this document and are indispensable for its applic
19、ation. For dated references, only the edition cited applies. For undated references, the latest edition of the referenced document (including any amendments) applies. EN 2591 (all parts), Aerospace series Elements of electrical and optical connection Test methods EN 4531-001, Aerospace series Connec
20、tors, optical, circular, single and multipin, coupled by triple start threaded ring Flush contacts Part 001: Technical specification EN 4533 (all parts), Aerospace series Fibre optic systems Handbook EN 4641 (all parts), Aerospace series Cables, optical, 125 m diameter cladding TR 4646 1), Aerospace
21、 series Termination procedure for EN 4531 optical contact MIL-I-81969/8-10 2), Installing and removal tools, connector electrical contact, types I and II, class 2, composition A 1) Published as ASD-STAN Technical Report at the date of publication of this European Standard (http:/www.asd-stan.org/).
22、2) Published by: DoD National (US) Mil. Department of Defense http:/www.defenselink.mil/ BS EN 4531-201:2016EN 4531-201:2016 (E) 5 3 Termini dimensions See Figure 1. Dimensions and tolerances are in millimetres. Dimensions of t1, t2, c and d of Figure 1 are detailed Table 1. Key 1 ferrule 2 flange 3
23、 chamfer or radius = 0,05 min./0,2 max. Figure 1 Table 1 EN 4531- Cable Optical fibre type Outer diameter c d t1t2micrometre mm m m m m 201 EN 4641-xxx 9/125 1,8 0,1 1 126,5 0,5 1 BS EN 4531-201:2016EN 4531-201:2016 (E) 6 4 General dimensions of the optical termini 4.1 Contact dimension and mass See
24、 Figure 2. Dimensions and tolerances are in millimetres. Mass of the contact: 1,5 g maximum. Key 1 spring force when spring length is 13,5 mm = 9 N min. When spring length is 8,5 mm, spring force shall be between 13 N and 15 N Spring is never compressed to joined coils 2 beginning of bending 3 o-rin
25、g Figure 2 BS EN 4531-201:2016EN 4531-201:2016 (E) 7 4.2 Boot dimension 4.2.1 Long version See Figure 3 and Table 2. Figure 3 4.2.2 Short version See Figure 4 and Table 2. Figure 4 Table 2 Boot code Boot colour Long boot L White or cream Short boot S White or cream 4.3 Material See Table 3. Table 3
26、Flange material Code Composite C Metal M Ferrule material: Zirconia (Zr O2) BS EN 4531-201:2016EN 4531-201:2016 (E) 8 5 Technical specification This component is qualified as part of a complete connector assembly when tested to the qualification requirements of EN 4531-001 and the applicable product
27、 standards. 6 Tests according to EN 2591-100 The tests of EN 2591-100, applicable in the context of this standard as well as the details necessary for implementing them and for inspecting connector characteristics, are given in Table 4. Environmental tests are specified in EN 4531-001. These tests s
28、hall be carried out without cable outlet. Table 4 EN 2591 Designation of the test Details 102 Examination of dimensions and mass Applicable 6301 Optical elements - Endurance at temperature 1 000 h at 125 C 6305 Optical elements - Rapid change of temperature 10 cycles. TA = 125 C. TB = 65 C. 6307 Opt
29、ical elements - Salt mist Contact wired Duration 48 h 311 Low air pressure Not applicable. 312 Air leakage Test performed on non-hermetic connectors. Method B Differential pressure: 100 kPa. Maximum leakage: 16 10 6 m3/h. and Method A Differential pressure: minimum 40 kPa during 2 (two) h, maximum l
30、eakage flow: 16 cm3/h. 6314 Optical elements - Immersion at low air pressure Connector mated 6316 Optical elements - Ozone resistance Not applicable. 6405 Optical elements - Axial load 100 N maintained for 1 (one) min, 3 (three) cycles. 6406 Optical elements - Mechanical endurance 500 mating/unmatin
31、g cycles 4 (four) to 5 (five) cycles/min Inspection and cleaning of contact end face every 20 cycles. 407 Durability of contact retention system and seals (maintenance ageing) Applicable. EN 2591-601 initial and final: insertion loss 0,1 dB BS EN 4531-201:2016EN 4531-201:2016 (E) 9 EN 2591 Designati
32、on of the test Details 601 Optical elements - Insertion loss For the pair, after termination: At 25 C: insertion loss 0,3 dB maximum for 95 % of the samples (statistic approach), i.e. minimum 19 samples with insertion loss 0,3 dB for the total of 21 optical cords of the 3 (three) groups. For all env
33、ironmental conditions: insertion loss 0,7 dB maximum for all samples, i.e. insertion loss 0,7 dB for the 21 optical cords. 602 Optical elements - Variation of attenuation and optical discontinuity Method A, insertion loss maximum = 0,7 dB 604 Optical elements - Cleaning capability of optical face Ap
34、plicable. 605 Optical elements - Return loss Return loss: 45 dB minimum 607 Optical elements - Immunity to ambient light coupling Not applicable. 609 Optical elements - Effectiveness of cable attachment - Cable cyclic flexing Method C: 100 cycles at a load of 5 N Pendulum length: 350 mm Pivoted at e
35、xtremity of the boot. 610 Optical elements - Effectiveness of cable attachment - Cable pulling Method B: 111 N tensile load, 1 (one) mn, 3 (three) pulls 611 Optical elements - Effectiveness of cable attachment - Cable torsion 100 cycles at a load of 40 N 612 Optical elements - Effectiveness of cable
36、 attachment - Cable axial compression Compression force of 10 N for 2 (two) mn 613 Optical elements - Impact test Variation of insertion loss 0,25 dB maximum after test 615 Optical elements - Connection integrity at temperature Not applicable. 617 Optical elements - Temperature cycling Not applicabl
37、e. 7 Cleaning instructions Suitable cleaning processes are detailed in EN 4533-004. 8 Tooling No tools required for insertion/extraction of the optical contact. The optical contact is inserted/extracted by hand from the rear of the connector. The standard tool as per MIL-I-81969/8-10 standard (P/N f
38、or size 12) may be used. BS EN 4531-201:2016EN 4531-201:2016 (E) 10 9 Termination instructions Termination instructions are detailed in TR 4646. See handbook EN 4533 for details. 10 Designation EXAMPLE Description block CONNECTOR, OPTICAL Identification block EN4531-201XX Number of the basic standar
39、d Optical contact type Flange material (see Table 3) Boot code (see Table 2) BS EN 4531-201:2016EN 4531-201:2016 (E) 11 Bibliography 1 EN 4531-002, Aerospace series Connectors, optical, circular, single and multipin, coupled by triple start threaded ring Flush contacts Part 002: Specification of per
40、formance and contact arrangements This page deliberately left blankThis page deliberately left blankBSI is the national body responsible for preparing British Standards and other standards-related publications, information and services.BSI is incorporated by Royal Charter. British Standards and othe
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