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STANDARD
SIST EN 3733-001:2009
EUROPEAN STANDARD NORME EUROPÉENNE EUROPÄISCHE NORM
EN 3733-001
August 2009 ICS 49.060 English Version
Aerospace series - Connector, optical, circular, single channel, coupled by self-locking ring, operating temperature up to 150 °C continuous - Part 001: Technical specification
Série aérospatiale - Connecteur optique circulaire monovoie, à accouplement par bague filetée, température d'utilisation 150 °C continu - Partie 001 : Spécification technique
Luft- und Raumfahrt - Optischer Rundsteckverbinder einpolig, Schraubkupplung, Betriebstemperatur 150 °C konstant - Teil 001: Technische Lieferbedingungen This European Standard was approved by CEN on 3 July 2009.
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 bibliographical references concerning such national standards may be obtained on application to the CEN 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 responsibility of a CEN member into its own language and notified to the CEN Management Centre has the same status as the official versions.
CEN members are the national standards bodies of Austria, Belgium, Bulgaria, Cyprus, Czech Republic, Denmark, Estonia, Finland, France, Germany, Greece, Hungary, Iceland, Ireland, Italy, Latvia, Lithuania, Luxembourg, Malta, Netherlands, Norway, Poland, Portugal, Romania, Slovakia, Slovenia, Spain, Sweden, Switzerland and United Kingdom.
EUROPEAN COMMITTEE FOR STANDARDIZATION
COMITÉ EUROPÉEN DE NORMALISATION EUROPÄISCHES KOMITEE FÜR NORMUNG
Management Centre:
Avenue Marnix 17,
B-1000 Brussels © 2009 CEN All rights of exploitation in any form and by any means reserved worldwide for CEN national Members. Ref. No. EN 3733-001:2009: ESIST EN 3733-001:2009
EN 3733-001:2009 (E) 2 Contents Page Foreword .4 1 Scope .5 2 Normative references .5 3 Terminology .5 4 Description .5 4.1 General .5 4.2 Component description .6 4.3 Materials .7 5 Design features .7 6 Definition, dimensions and masses.7 6.1 General .7 6.2 Interface dimensions of the plug .8 6.3 Interface dimensions of the receptacle .9 6.4 Polarization . 10 7 Tests . 10 7.1 Tests according to EN 2591-100 . 10 7.2 Special test – high level vibrations e. g. gunfire . 15 8 Quality assurance . 15 8.1 General . 15 8.2 Qualification . 15 8.3 Maintenance of qualification . 19 8.4 Acceptance test conditions . 20 8.5 Quality control . 20 9 Designation and marking . 21 9.1 General principle of designation . 21 9.2 Marking . 23 10 Delivery conditions . 23 11 Packaging . 24 12 Storage . 24
Figures Figure 1 — Plug interface dimensions . 8 Figure 2 — Receptacle interface dimesions . 9 Figure 3 — Key-ways . 10
SIST EN 3733-001:2009
EN 3733-001:2009 (E) 3 Tables Table 1 — Key positions . 10 Table 2 — Tests . 11 Table 3 — List of the test fluids – Class A . 14 Table 4 — List of test fluids – Class B . 15 Table 5 — Sampling . 16 Table 6 — Programme for qualification approval tests . 16 Table 7 — Qualification maintenance . 20
SIST EN 3733-001:2009
EN 3733-001:2009 (E) 4 Foreword This document (EN 3733-001:2009) 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 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 the latest by February 2010, and conflicting national standards shall be withdrawn at the latest by February 2010. 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. 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, Cyprus, Czech Republic, Denmark, Estonia, Finland, France, Germany, Greece, Hungary, Iceland, Ireland, Italy, Latvia, Lithuania, Luxembourg, Malta, Netherlands, Norway, Poland, Portugal, Romania, Slovakia, Slovenia, Spain, Sweden, Switzerland and the United Kingdom.
SIST EN 3733-001:2009
EN 3733-001:2009 (E) 5 1 Scope This standard specifies the general characteristics, the conditions for qualification, acceptance and quality assurance as well as the test programs and groups for self-locking ring coupling, single channel, circular fibre-optic connectors intended for operating temperatures up to 150 °C for aerospace applications. 2 Normative references The following referenced documents are indispensable for the application of this document. For dated references, only the edition cited applies. For undated references, the latest edition of the referenced document (including any amendments) applies. EN 2591-100,
Aerospace series — Elements of electrical and optical connection — Test methods — Part 100: General1 EN 9133,
Aerospace series - Quality management systems - Qualification procedure for Aerospace Standard Parts EN 3197,
Aerospace series — Installation of aircraft electrical and optical interconnection systems2 EN 3733-002,
Aerospace series — Connectors, optical, circular, single channel, coupled by self-locking ring, operating temperature 150 °C continuous — Part 002: List of product standards2 ISO 1817,
Rubber, vulcanized — Determination of the effect of liquids MIL-STD-810F,
Environmental engineering Considerations and Laboratory Tests3 MIL-PRF-7808L,
Lubricating Oil, Aircraft Turbine Engine, Synthetic Base3 MIL-PRF-23699F,
Lubricating Oil, Aircraft Turbine Engine, Synthetic Base, NATO Code Number O-1563 QPL-5606-31,
Hydraulic Fluid, Petroleum Base; Aircraft; Missile and Ordnance3 SAE-AMS 1424,
Fluid, Deicing/Anti-Icing, Aircraft, SAE Type 13 3 Terminology For the purposes of this standard, the definitions given in EN 2591-100 apply. 4 Description 4.1 General All connectors shall be environmentally sealed to the level specified in Table 2.
1 All parts quoted in Tables 2, 6 and 7. 2 Published as ASD prestandard at the date of publication of this standard. 3 Published by: Department of Defense (DOD), the Pentagon, Washington, DC 20301, USA. SIST EN 3733-001:2009
EN 3733-001:2009 (E) 6 Connectors shall be thread coupled. Connectors shall incorporate a cable strain relief mechanism, if specified in the product standard. A range of optical ferrules (optical contacts) and cable restraint assemblies shall be made available to suit different fibres and cables. Connectors shall be resistant to Class A or Class B fluids as detailed in Tables 4 and 5 dependent upon user requirements. 4.2 Component description 4.2.1 Plug The coupling ring permanently fitted on the front plug assembly shall enable the connectors to be coupled and uncoupled. The screwing up torque shall be lower than the unscrewing torque. The coupling ring shall be knurled. The plug connector shall have an anti-vibration mechanism to prevent unintentional un-mating. All plug connectors shall incorporate a split alignment sleeve. 4.2.2 Receptacle The receptacle mounting style may be: a) square flange — four holes fixing; b) oval flange — two holes fixing; c) by jam-nut, with sealing by "O" ring at the attachment. Dummy receptacles are also available in the above mounting styles. 4.2.3 Protective cover Protective covers shall be made available for flange and jam nut receptacles. 4.2.4 Terminator cover Terminator covers shall be made available for receptacles if required. 4.2.5 Ferrule (Optical contact) Ferrules shall be made available as a separate deliverable. The ferrule is withdrawn from the rear of a connector. 4.2.6 Strain relief boot Strain relief boots shall be made available as a separate deliverable if required. 4.2.7 Plug sub-assembly Plug sub-assemblies shall be made available as a separate deliverable if required. SIST EN 3733-001:2009
EN 3733-001:2009 (E) 7 4.2.8 Receptacle sub-assembly Receptacle sub-assemblies shall be made available as a separate deliverable if required. 4.2.9 Epoxy resin Epoxy resin shall be specified as a deliverable if required. 4.3 Materials 4.3.1 General When materials are not specified or not specifically described, they shall be as light as possible consistent with the required use. When similar or 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). 4.3.2 Housings The material of the housings for the connectors and for the fittings shall be of a lightweight, corrosion-resistant material such as passivated stainless steel or nickel-copper alloys as detailed in the applicable product standards. 4.3.3 Ferrules (Optical contacts) The material for the ferrules shall be ceramic (zirconia or alumina), corrosion-resisting steel, or other material as detailed in the applicable product standards. 4.3.4 Seals and strain relief boots The material used for seals and strain relief boots shall be consistent with the required use. 5 Design features The connector shall have five keys on the plug made with five key-ways on the receptacle, for polarisation. The plug and receptacle shall use face contact or physical contact optical ferrule technology. The cable strain relief shall be secured to the connector housing, for plug and receptacle. The optical ferrule in the plug shall be spring loaded. Optical mating faces shall be accessible for cleaning with minimal disassembly. 6 Definition, dimensions and masses 6.1 General The general dimensions and masses for receptacles, plugs, covers, dummy receptacles and ferrules are given in the product standards. Refer to the list given in EN 3733-002. SIST EN 3733-001:2009
EN 3733-001:2009 (E) 8 6.2 Interface dimensions of the plug See Figure 1. Dimensions in millimetres
Key 1 Thread Figure 1 — Plug interface dimensions
SIST EN 3733-001:2009
EN 3733-001:2009 (E) 9 6.3 Interface dimensions of the receptacle See Figure 2. Dimensions are in millimetres
Key 1 Thread 2 Elastomeric face seal Figure 2 — Receptacle interface dimensions SIST EN 3733-001:2009
EN 3733-001:2009 (E) 10 6.4 Polarization Polarization is achieved by varying the position of the secondary keys and key-ways relative to the main key or key-way. See Figure 3.
Figure 3 — Key-ways Table 1 – Key positions Dimensions in gradeKey position A B C D Normal 105 140 215 265 A 102 132 248 320 B 80 118 230 312 C 35 140 205 275 D 64 155 234 304 E 91 131 197 240 7 Tests 7.1 Tests according to EN 2591-100 The tests cited in EN 2591-100 are applicable in the context of this standard as well as details necessary for implementing them for inspecting connector characteristics, are given in Table 2. Performance and test method parameters which are fibre and cable dependant, together with environmental testing not applicable to all product standards, are detailed in the appropriate product standards. Tests relating to electrical and multi-way connectors are not applicable to EN 3733 components and are therefore not included in Table 2. SIST EN 3733-001:2009
EN 3733-001:2009 (E) 11 Table 2 — Tests EN 2591- Designation of the test Details 6101 Optical elements – Visual examination No loosening of parts, cracks, excessive wear, or detached parts. Optical face undamaged and free from contamination when examined at a minimum magnification of × 100 101 Visual examination Applicable to protective caps only 102 Examination of dimensions and mass According to Clause 6 and product standards NOTE In the case of a Qualified Inspection System, the parts unrelated to a Product Batch, may be used 6301 Optical elements – Endurance at temperature
Method B – 150 °C Time 1 000 h 302 Climatic sequence For performance and test method requirements refer to the applicable product standard for the component and cable under test 6303 Optical elements – Cold/low pressure and damp heat Duration – five cycles Maximum temperature (– 65 ± 2) °C Measurement during test: at each transition point 304 Damp heat steady state For performance and test method requirements refer to the applicable product standard for the component and cable under test. 6305 Optical elements – Rapid change of temperature
TA = (− 6550−) °C TB = (15005+) °C 6306 Optical elements – Mould growth Not applicable 6307 Optical elements – Salt mist The connectors are suspended in the test chamber with non-metallic cords, to prevent accumulation of condensed solution The connectors are subjected to 50 mating/unmating cycles, rate not exceeding to the salt mist: mated for 452 h, then unmated for 48 h 308 Sand and dust Connector mated and positioned such that rear of free plug faces into the wind direction Wind velocity in duct: (3,5 ± 0,5) m/s Number of cycles: one 309 Dry heat For performance and test method requirements refer to the applicable product standard for the component and cable under test. 310 Cold 311 Low air pressure 312 Air leakage Test performed on non-hermetic connectors Method B -
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