1、AECMA STANDARD NORME AECMA AECMA NORM Edition approved for publication 30 April 2004 prEN 4531 -001 Edition P 1 April 2004 Comments should be sent within six months after the date of publication to AECMA-STAN ICs: Descriptors: ENGLISH VERSION Aerospace series Connectors, optical, circular, single an
2、d multipin, coupled by threaded ring Flush contacts Part O01 : Technical specification Srie arospatiale Luft- und Raumfahrt Connecteurs optiques circulaires a accouplement Optische Rundsteckverbinder mit Schraubkupplung par bague filete Contacts affleurants Partie O01 : Spcification technique Bndige
3、 Kontakte Teil O01 : Technische Lieferbedingungen This “Aerospace Series“ frestandard has been drawn up under the responsibility of AECMA-STAN (The European Association of Aerospace Industries - Standardization). It is published for the needs of the European Aerospace Industry. It has been technical
4、ly approved by the experts of the concerned Domain following member comments. Subsequent to the publication of this frestandard, the technical content shall not be changed to an extent that interchangeabilify is affected, physically or functionally, without re-identification of the standard. After e
5、xamination and review by users and formal agreement of AECMA-STAN, it will be submitted as a draft European Standard (prEN) to CEN (European Committee for Standardization) for formal vote and transformation to full European Standard (EN). The CEN national members have then to implement the EN at nat
6、ional level by giving the EN the status of a national standard and by withdrawing any national standards conflicting with the EN. Electrical Domain I I Copytight 2004 O by AECMA-STA1 Copyright Association Europeene des Constructeurs de Materiel Aerospatial Provided by IHS under license with AECMANot
7、 for ResaleNo reproduction or networking permitted without license from IHS-,-,-Page 2 prEN 4531 -001 :2004 Contents Page In trod uction 3 Scope 3 Normative references 3 Terms and definitions . 4 Description . 4 Design . 5 Definition drawings and masses 7 Tests . 26 Quality assurance . 30 Designatio
8、n and marking . 35 Copyright Association Europeene des Constructeurs de Materiel Aerospatial Provided by IHS under license with AECMANot for ResaleNo reproduction or networking permitted without license from IHS-,-,-Page 3 prEN 4531-001 :2004 O Introduction This family of fiber optic connectors is d
9、erived from MIL-C-38999 series III and EN 3645-001. It is suitable for use on aerospace onboard applications. It provides easy access for optical contact end face cleaning. The connectors with shell size 9, 11 and 13 are 100 % scoop proof. The optical contacts are capable of accepting single cable s
10、izes up to a maximum of 2,5 mm outside diameter. 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 threaded ring coupling circular fiber optic self-locking connectors, fire-resi
11、stant or non fire-resistant, intended for use in a temperature range from - 65 “C to 150 “C (cable dependent) continuous. 2 Normative references This European Standard incorporates by dated or undated reference, provisions from other publications. These normative references are cited at the appropri
12、ate places in the text and the publications are listed hereafter. For dated references, subsequent amendments to or revisions of any of these publications apply to this European Standard only when incorporated in it by amendment or revision. For undated references the latest edition of the publicati
13、on referred to applies (including amendments). EN 2591, Aerospace series - Elements of electrical and optical connection - Test methods - General.?) EN 31 97, Aerospace series - Installation of aircraft electrical and optical interconnection systems.2) EN 3645, Aerospace series - Connectors, electri
14、cal circular, scoop-proof, triple start threading coupling operating temperatures I75 “C or 200 “C continuous. II 2) EN 4531 -002, Aerospace series - Connectors, optical, circular, single and multipin, coupled by threaded ring - Flush contacts - Part 002: Specification of performance and contact arr
15、angement.) EN 91 33, Aerospace series - Qualify management systems - Qualification Procedure for Aerospace Standard parts. 2) IS0 68: 1973, IS0 general purpose screw threads - Basic profile. IS0 261 : 1973, IS0 General Purpose Metric Screw Threads - General Plan. IS0 262: 1973, IS0 General Purpose M
16、etric Screw Threads - Selected Sizes for Screws, Bolts and Nuts. IS0 965: 1973, IS0 General Purpose Metric Screw Threads - Tolerances. I) AS 1241A, Fire resistant phosphate ester hydraulic fluid for airraft.) MI L-A-8243D, Anti-icing and de-icing-defrosting fluids.5) 1) Including all its parts 2) Pu
17、blished as AECMA Prestandard at the date of publication of this standard 3) In preparation at the date of the publication of this standard 4) Published by : Society of Automotive Engineers, Inc. (SAE) 400 Commonwealth Drive, Warrendale, PA 15096-001 USA Copyright Association Europeene des Constructe
18、urs de Materiel Aerospatial Provided by IHS under license with AECMANot for ResaleNo reproduction or networking permitted without license from IHS-,-,-Page 4 prEN 4531 -001 :2004 MI L-C-25769JI Cleaning compound, aircraft surface, alkaline water base.5) MI L-DTL-38999K, Connectors, electrical, circu
19、lar, miniature, high densify, quick disconnect (bayonet, threaded, and breech coupling), environment resistant, removable crimp and hermetic solder contacts, General specification for. 5, MI L-H-5606E, Hydraulic fluid, petroleum base, aircraft, missile and ordnance. 5, MIL-1-81 969/8B, Installing an
20、d removal tools, connector electrical contact, type I and II, class 2, composition A. 5, MI L-PRF-7808L, Lubricating oil, aircraft turbine engine, synthetic base. 5, MI L-PRF-7870C, Lubricating oil, general purpose, low temperature. 5, MI L-PRF-23699F, Lubricating oil, aircraft turbine engine, synth
21、etic base, NA TO CODE number 0-156. 5, MIL-STD-1373, Screw thread, modified, SO0, stub, double. 5, TR 4257, Aerospace series - Elements of electrical and optical connection - Relationship between the numbering systems for parts of EN 2f191.) 3 Terms and definitions For the purposes of this European
22、Standard, the terms and definitions given in EN 2591. 4 Description The connectors utilise rear removable optical contacts with a ferrule diameter of 2,5 mm. The receptacles and plugs contain either male insert or female insert. The female insert is characterized by its ability to precisely align th
23、e optical contacts. The precise alignment of the optical contacts is accomplished by alignment sleeves. The connectors are polarized by means of keyways and keys; polarization is obtained before the male contacts enter the insert of the female contacts and before the coupling ring is engaged. The po
24、sition of the keying arrangement is given in 6.4. The visual check of full mating is obtained by masking of a red coloured band on the receptacle. Connector accessories are defined in EN 4531 -002. 4.1 Receptacle The receptacle contains five keyways in which the keys of the plug engage. The main key
25、way is fixed and is wider than the others. Polarization is ensured by the different positions which the secondary keyways may take. The position of the insert is fixed relative to the main keyway. 5) Published by : Department of Defense (DOD), the Pentagon, Washington, D.C. 20301 USA 6) Published as
26、 AECMA Technical Standard at the date of publication of this standard Copyright Association Europeene des Constructeurs de Materiel Aerospatial Provided by IHS under license with AECMANot for ResaleNo reproduction or networking permitted without license from IHS-,-,-Page 5 prEN 4531-001 :2004 4.2 Pl
27、ug 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 fixed relative to the main key. The coupling ring permanently fitte
28、d on the plug enables the connectors to be mated and unmated. The mating torque shall be lower than the unmating torque. The internal thread of the coupling ring may be treated with a suitable lubricant compatible with the performance required in this standard. 4.3 Materials and surface treatment Wh
29、en 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). 4.3.1 Housings The material of the connector housings and fittings shall be of suitable material and/or finish to protect against
30、 corrosion (see EN 3197) as specified in the product standard. 4.3.2 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
31、 sprung-loaded. The spring force is defined in the product standard. 4.3.3 Metallic or non-metallic materials The materials used for insert seals, grommets and alignment pins shall have a hardness and mechanical characteristics consistent with the required use. 5 Design 5.1 Housings The connector ho
32、usings shall be in one unit. They contain teeth at the rear over the entire periphery and shall accommodate the accessories. The receptacle shall be fitted with an internal seal for sealing the coupled housings. The jam nut receptacle housing shall contain an O-ring seal (panel seal). The lock nut s
33、hall be provided with wire locking holes. Threads shall conform to standards IS0 68: 1973, IS0 261 : 1973, IS0 262: 1973 and IS0 965: 1973, 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
34、it is screwed clockwise and disengage when it is unscrewed counter clockwise. The coupling ring shall be designed to provide a hand grip pro fi I e. Full locking of the connectors shall occur at approximately 360“. On completion of tightening of the coupling ring, mechanical contact shall exist betw
35、een the receptacle and plug shells. Masking of a red colour band on the receptacle shall show that the connectors are correctly mated. The front face of the plug shell shall seal when fully mated with the receptacle connector. Copyright Association Europeene des Constructeurs de Materiel Aerospatial
36、 Provided by IHS under license with AECMANot for ResaleNo reproduction or networking permitted without license from IHS-,-,-Page 6 prEN 4531 -001 :2004 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 br
37、eaks can occur in normal operation. The insert for contacts shall be non-removable; it shall be mechanically held in the housing. Sealing shall be provided between the housing and insert. The mechanical contacts retention system shall be integrated in the hard insert. The design shall permit individ
38、ual installation of the contacts without removal of the insert. Fitting and removal of the contacts shall be from the rear. For ease of operation, tools as per 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
39、 of the insert and on the rear face of the insert or grommet. The male insert shall incorporate two optical contact alignment pins for multiway connectors. The female insert shall incorporate two optical contact alignment holes for multiway connectors. Copyright Association Europeene des Constructeu
40、rs de Materiel Aerospatial Provided by IHS under license with AECMANot for ResaleNo reproduction or networking permitted without license from IHS-,-,-Page 7 prEN 4531 -001 :2004 6 Definition drawings and masses The general dimensions and the masses of receptacles, plugs and protective covers are giv
41、en in the product standards. 6.1 Receptacle mating dimensions 6.1.1 Receptacle with male insert The mating dimensions of receptacles with the male insert are shown in Figure 1 for shell sizes 11, 13, 17, 21, and 25, Figure 2 for shell size 9 and in Table 1. Same dimensions as EN 3645 connectors. Dim
42、ensions and tolerances are in millimetres. Key 1 Threading Figure 1 - Drawing for shell sizes 11, 13, 17,21 and 25 Copyright Association Europeene des Constructeurs de Materiel Aerospatial Provided by IHS under license with AECMANot for ResaleNo reproduction or networking permitted without license f
43、rom IHS-,-,-Page 8 prEN 4531 -001 :2004 A gask loc Key 1 Threading R max. G F + 0,13 H J - 0,25 Figure 2 - Drawing for shell size 9 15,88 1 Z,OY Table 1 - -,- - I I - -1- A7 *A I I A 4 *A - 1 - I I 1- nn nn I I nn nn LJ,U+ 29,49 25,17 33,Uf I I nr nn 32,74 nn rn Housing size 12,34 15,88 15,60 19,66
44、19,38 26,Ol 25,73 31,85 31,57 38,20 37,92 19,05 22,23 30,16 34,73 41,28 o9 11 13 17 21 25 I I I 1- 11,36 1 1.20 I 7,24 14,42 14.14 14,73 14,50 I /,OU 14,O I I 20.49 17.30 27,97 23,64 c)c) A7 I I -A CA 33,YY 35,84 31,52 3Y,4L 39,02 Copyright Association Europeene des Constructeurs de Materiel Aerospa
45、tial Provided by IHS under license with AECMANot for ResaleNo reproduction or networking permitted without license from IHS-,-,-Page 9 prEN 4531-001 :2004 6.1.2 Receptacle with female insert The mating dimensions of receptacles with female insert are shown in Figure 3 for shell sizes 1 1, 13, 17, 21
46、, and 25, Figure 4 for shell size 9 and Table 1. Same dimensions as EN 3645 connectors. Dimensions and tolerances are in millimetres. Key 1 Threading a The maximum distance between the front face of the shell and the front edge of the alignment sleeve. Reference Figure 3 - Drawing for shell sizes 11
47、, 13, 17,21 and 25 Copyright Association Europeene des Constructeurs de Materiel Aerospatial Provided by IHS under license with AECMANot for ResaleNo reproduction or networking permitted without license from IHS-,-,-Page 10 prEN 4531 -001 :2004 Key 1 Threading a The maximum distance between the fron
48、t face of the shell and the front edge of the alignment sleeve. Reference Figure 4 - Drawing for shell size 9 Copyright Association Europeene des Constructeurs de Materiel Aerospatial Provided by IHS under license with AECMANot for ResaleNo reproduction or networking permitted without license from I
49、HS-,-,-Page 11 prEN 4531-001 :2004 6.1.3 Receptacle, contact bayonet pin position See Figure 5 for male receptacle and Figure 6 for female receptacle Figure 5 - Male receptacle Figure 6 - Female receptacle Copyright Association Europeene des Constructeurs de Materiel Aerospatial Provided by IHS under license with AECMANot for ResaleNo reproduction or networking permitte
