1、raising standards worldwideNO COPYING WITHOUT BSI PERMISSION EXCEPT AS PERMITTED BY COPYRIGHT LAWBSI Standards PublicationBS EN 4531-001:2012Aerospace series Connectors, optical, circular,single and multipin, coupledby triple start threaded ring Flush contactsPart 001: Technical specificationCopyrig
2、ht European Committee for Standardization Provided by IHS under license with CENNot for ResaleNo reproduction or networking permitted without license from IHS-,-,-BS EN 4531-001:2012 BRITISH STANDARDNational forewordThis British Standard is the UK implementation of EN 4531-001:2012.It supersedes BS
3、EN 4531-001:2007 which is withdrawn.The UK participation in its preparation was entrusted to TechnicalCommittee ACE/6, Aerospace avionic electrical and fibre optictechnology.A list of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 secretary.This publication does not pur
4、port to include all the necessaryprovisions of a contract. Users are responsible for its correctapplication. The British Standards Institution 2012. Published by BSI StandardsLimited 2012ISBN 978 0 580 76583 4ICS 49.060Compliance with a British Standard cannot confer immunity fromlegal obligations.T
5、his British Standard was published under the authority of theStandards Policy and Strategy Committee on 31 May 2012.Amendments issued since publicationDate Text affectedCopyright European Committee for Standardization Provided by IHS under license with CENNot for ResaleNo reproduction or networking
6、permitted without license from IHS-,-,-BS EN 4531-001:2012EUROPEAN STANDARD NORME EUROPENNE EUROPISCHE NORM EN 4531-001 May 2012 ICS 49.060 Supersedes EN 4531-001:2007English Version Aerospace series - Connectors, optical, circular, single and multipin, coupled by triple start threaded ring - Flush
7、contacts - Part 001: Technical specification Srie arospatiale - Connecteurs optiques circulaires accouplement par bague filete trois filets - Contacts affleurants - Partie 001: Spcification technique Luft- und Raumfahrt - Optische Rundsteckverbinder mit dreigngiger Schraubkupplung - Bndige Kontakte
8、- Teil 001: Technische Lieferbedingungen This European Standard was approved by CEN on 23 December 2011. 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
9、. 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 CEN member. This European Standard exists in three official versions (English, French, German). A version in any other language made by t
10、ranslation under the responsibility 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, Fi
11、nland, 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 NORMALISATION EUR
12、OPISCHES KOMITEE FR NORMUNG Management Centre: Avenue Marnix 17, B-1000 Brussels 2012 CEN All rights of exploitation in any form and by any means reserved worldwide for CEN national Members. Ref. No. EN 4531-001:2012: ECopyright European Committee for Standardization Provided by IHS under license wi
13、th CENNot for ResaleNo reproduction or networking permitted without license from IHS-,-,-BS EN 4531-001:2012EN 4531-001:2012 (E) 2 Contents Page Foreword . 3Introduction 41 Scope . 52 Normative references . 53 Terms and definitions. 64 Description 65 Design 76 Definition drawings and masses . 87 Tes
14、ts . 248 Quality assurance . 299 Designation and marking . 3410 Packaging 3411 Storage . 34Copyright European Committee for Standardization Provided by IHS under license with CENNot for ResaleNo reproduction or networking permitted without license from IHS-,-,-BS EN 4531-001:2012EN 4531-001:2012 (E)
15、 3 Foreword This document (EN 4531-001:2012) 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, this Standard has received the approval of the National A
16、ssociations 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 the latest by November 2012, and conflicting national stan
17、dards shall be withdrawn at the latest by November 2012. 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 such patent rights. This document supersedes EN 4
18、531-001:2007. 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, France, Germany, Greece, Hungary, Ic
19、eland, Ireland, Italy, Latvia, Lithuania, Luxembourg, Malta, Netherlands, Norway, Poland, Portugal, Romania, Slovakia, Slovenia, Spain, Sweden, Switzerland, Turkey and the United Kingdom. Copyright European Committee for Standardization Provided by IHS under license with CENNot for ResaleNo reproduc
20、tion or networking permitted without license from IHS-,-,-BS EN 4531-001:2012EN 4531-001:2012 (E) 4 Introduction This family of fibre optic connectors is derived from MIL-DTL-38999L series III and EN 3645-001. It is suitable for use on aerospace onboard applications. It provides easy access for opti
21、cal contact end face cleaning. The optical contacts are capable of accepting single cable sizes up to a maximum of 1,9 mm outside diameter. Copyright European Committee for Standardization Provided by IHS under license with CENNot for ResaleNo reproduction or networking permitted without license fro
22、m IHS-,-,-BS EN 4531-001:2012EN 4531-001:2012 (E) 5 1 Scope This European Standard specifies the general characteristics, the conditions for qualification, acceptance and quality assurance, as well as the test programs and groups for threaded ring coupling circular fibre optic self-locking connector
23、s, fire-resistant or non fire-resistant, intended for use in a temperature range from 65 C to 150 C (cable dependent) continuous. 2 Normative references The following documents, in whole or in part, are normatively referenced in this document and are indispensable for its application. For dated refe
24、rences, 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 3197, Aerospace series Design and installation of airc
25、raft electrical and optical interconnection systems EN 3645 (all parts), Aerospace series Connectors, electrical, circular, scoop-proof, triple start threaded coupling, operating temperature 175 C or 200 C continuous EN 3909, Aerospace series Test fluids and test methods for electric components and
26、sub-assemblies EN 4531-002, Aerospace series Connectors, optical, circular, single and multipin, coupled by threaded ring Flush contacts Part 002: Specification of performance and contact arrangements EN 4533-004, Aerospace series Fibre optic systems Handbook Part 004: Repair, maintenance and inspec
27、tion EN 9133, Aerospace series Quality management systems Qualification Procedure for aerospace standard parts ISO 263, ISO inch screw threads General plan and selection for screws, bolts and nuts Diameter range 0.06 to 6 in 1)EN 61300-3-33, Fibre optic interconnection devices and passive components
28、 Basic test and measurement procedures Part 3-33: Examination and measurements Ferrule withdrawal force (IEC 61300-3-33) MIL-STD-1373, Screw thread, modified, 60, stub, double2)MIL-DTL-38999L, Connectors, Electrical, Circular, Miniature, High Density, Quick Disconnect (Bayonet, Threaded, and Breech
29、Coupling), Environment Resistant, Removable Crimp and Hermetic Solder Contacts General Specification for 2)MIL-I-81969/8-10, Installing and removal tools, connector electrical contact, Types I and II, Class 2, composition A 2)MIL-STD-454N, Electronic equipment, Standard general requirements for 2)1)
30、 Published as ISO International Standardisation Organisation http:/www.iso.ch/ 2)Published as DoD National (US) Mil. Department of Defense http:/www.defenselink.mil/ Copyright European Committee for Standardization Provided by IHS under license with CENNot for ResaleNo reproduction or networking per
31、mitted without license from IHS-,-,-BS EN 4531-001:2012EN 4531-001:2012 (E) 6 3 Terms and definitions For the purposes of this document, the terms and definitions given in EN 2591-100 apply. 4 Description 4.1 General The connectors utilise rear removable optical contacts with a ferrule diameter of 2
32、,5 mm. The receptacles and plugs contain either male insert or female insert. The female insert is characterized by its ability to precisely align the optical contacts. The precise alignment of the optical contacts is accomplished by alignment sleeves. The connectors are polarized by means of keyway
33、s and keys; polarization is obtained before the male contacts enter the insert of the female contacts and before the coupling ring is engaged. The position of the keying arrangement is given in 6.4. The connectors with shell size 9, 11 and 13 are 100 % scoop proof. The visual check of full mating is
34、 obtained by masking of a red coloured band on the receptacle. 4.2 Receptacle The receptacle contains five keyways in which the keys of the plug engage. The main keyway is fixed and is wider than the others. Polarization is ensured by the different positions which the secondary keyways may take. The
35、 position of the insert is fixed relative to the main keyway. 4.3 Plug The plug contains five keys which engage in the keyways of the receptacle. The main key is wider than the others. Polarization is ensured by the different positions which the secondary keys may take. The position of the insert is
36、 fixed relative to the main key. The coupling ring permanently fitted on the plug enables the connectors to be mated and unmated. The internal thread of the coupling ring may be treated with a suitable lubricant compatible with the performance required in this standard. 4.4 Materials and surface tre
37、atment 4.4.1 General When dissimilar metals are in close contact, adequate protection against corrosion shall be used for the electromotive force of the cell not to exceed 0,25 V (see EN 3197). 4.4.2 Shells The material of the connector shells and fittings shall be of suitable material and/or finish
38、 to protect against corrosion (see EN 3197) as specified in the product standard. Copyright European Committee for Standardization Provided by IHS under license with CENNot for ResaleNo reproduction or networking permitted without license from IHS-,-,-BS EN 4531-001:2012EN 4531-001:2012 (E) 7 4.4.3
39、Optical contacts and alignment sleeves The material of the optical contacts and alignment sleeves shall be of suitable materials as specified in the appropriate product standard. The optical contacts in both plug and receptacle are spring-loaded. The spring force is defined in the product standard.
40、4.4.4 Metallic or non-metallic materials Insert, seal, grommet and alignment pin materials shall have a hardness and mechanical characteristics consistent with the required use. 5 Design 5.1 Shells The connector shells shall be in one inseparable unit. They contain teeth at the rear over the entire
41、periphery and shall accommodate accessories. The receptacle shall be fitted with an internal seal for a good sealing the coupled shells. The jam nut receptacle shell shall contain an O-ring seal (panel seal). The lock nut shall be provided with wire locking holes. Threads shall conform to standards
42、ISO 263, except for the triple start threads, which shall conform to standard MIL-STD-1373. The coupling ring shall be designed so that the optical contacts engage when it is screwed clockwise and disengage when it is unscrewed counter clockwise. The coupling ring shall be designed to provide a hand
43、 grip profile. Full locking of the connectors shall occur at approximately 360. On completion of tightening of the coupling ring, mechanical contact shall exist between the receptacle and plug shells. Masking of a red colour band on the receptacle shall show that the connectors are correctly mated.
44、The front face of the plug shell shall seal when fully mated with the receptacle connector. 5.2 Inserts The insert carrying the optical contacts shall be in hard material and have a cross section and radii such that no cracks, flaking or breaks can occur in normal operation. The insert for contacts
45、shall be non-removable; it shall be mechanically held in the shell. Sealing shall be provided between the shell and insert. The mechanical contacts retention system shall be integrated in the hard insert. The design shall permit individual installation of the contacts without removal of the insert.
46、Insertion and removal of the contacts shall be from the rear. For ease of operation, tools according to MIL-I-81969/8-10 standard (P/N for size 12) may be used. Contact position identification shall be permanent and contrasted on the front face of the insert and on the rear face of the insert or gro
47、mmet. The male insert shall incorporate two optical contact alignment pins for multiway connectors. The alignment pins improve the guiding of the inserts before optical contacts touch each other. The female insert shall incorporate two optical contact alignment holes for multiway connectors and a gu
48、iding sleeve. Under EN 61300-3-33 test conditions, the zirconia sleeve force shall be 1,9 N 3,5 N. Copyright European Committee for Standardization Provided by IHS under license with CENNot for ResaleNo reproduction or networking permitted without license from IHS-,-,-BS EN 4531-001:2012EN 4531-001:2012 (E) 8 6 Definition drawings and masses 6.1 General General dimensions and masses of receptacle, plug and protective cover are given in the product standards. 6.2 Receptacle mating dimensions 6.2.1 Receptacle wi
