Aerospace series - Connectors, optical, circular, single and multipin, coupled by threaded ring, self-locking 1,25 mm diameter ferrule with removable alignment sleeve holder - Part 001: Technical specification

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 fibre optic self-locking connectors, fire-resistant or non fire-resistant, intended for use in a temperature range from - 65 °C to 150 °C continuous.

Luft- und Raumfahrt - Optische Rundsteckverbinder mit Schraubkupplung, selbstsichernd, Einzel- und Multipin, Ferrulendurchmesser 1,25 mm, demontierbarer Zentrierhülsenhalter - Teil 001: Technische Lieferbedingungen

Diese Norm legt die allgemeinen Eigenschaften, Bedingungen für Qualifikation, Abnahme und Qualitätssicherung,
sowie die Prüfprogramme und -gruppen für LWL-Rundsteckverbinder mit Schraubkupplung, selbstsichernd,
feuerbeständig oder nicht feuerbeständig, die für die Anwendung in einem Temperaturbereich von
−65 °C bis 150 °C konstant vorgesehen sind, fest.

Série aérospatiale - Connecteurs optiques circulaires à accouplement par bague filetée, auto-freinante ferrule 1,25 équipés d' un porte sleeve démontable - Partie 001: Spécificaton technique

Aeronavtika - Konektorji, optični, okrogli, z enim ali več zatiči, priključeni z navojnim obročkom, samozapiralni, s premerom kapice 1,25, s snemljivo centrirno pušo - 001. del: Tehnična specifikacija

Ta standard določa splošne zahteve, pogoje za upravičenost, odobritev in zagotavljanje kvalitete, kot tudi preskusne programe in skupine za samozapiralne optične konektorje, priključene z navojnim obročkom, ognjevarne in neognjevarne, namenjene za uporabo v temperaturah razpona od – 65 °C do 150 °C neprekinjeno.

General Information

Status
Published
Publication Date
24-Jan-2010
Technical Committee
Current Stage
6060 - National Implementation/Publication (Adopted Project)
Start Date
25-Jan-2010
Due Date
01-Apr-2010
Completion Date
25-Jan-2010

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2003-01.Slovenski inštitut za standardizacijo. Razmnoževanje celote ali delov tega standarda ni dovoljeno.Luft- und Raumfahrt - Optische Rundsteckverbinder mit Schraubkupplung, selbstsichernd, Einzel- und Multipin, Ferrulendurchmesser 1,25 mm, demontierbarer Zentrierhülsenhalter - Teil 001: Technische LieferbedingungenSérie aérospatiale - Connecteurs optiques circulaires à accouplement par bague filetée, auto-freinante ferrule 1,25 équipés d' un porte sleeve démontable - Partie 001: Spécificaton techniqueAerospace series - Connectors, optical, circular, single and multipin, coupled by threaded ring, self-locking 1,25 mm diameter ferrule with removable alignment sleeve holder - Part 001: Technical specification49.060Aerospace electric equipment and systemsICS:Ta slovenski standard je istoveten z:EN 4645-001:2010SIST EN 4645-001:2010en01-marec-2010SIST EN 4645-001:2010SLOVENSKI
STANDARD



SIST EN 4645-001:2010



EUROPEAN STANDARD NORME EUROPÉENNE EUROPÄISCHE NORM
EN 4645-001
January 2010 ICS 49.090 English Version
Aerospace series - Connectors, optical, circular, single and multipin, coupled by threaded ring, self-locking 1,25 mm diameter ferrule with removable alignment sleeve holder - Part 001: Technical specification
Série aérospatiale - Connecteurs optiques circulaires à accouplement par bague filetée, auto-freinante ferrule 1,25 équipés d'un porte sleeve démontable - Partie 001 : Spécificaton technique
Luft- und Raumfahrt - Optische Rundsteckverbinder mit Schraubkupplung, selbstsichernd, Einzel- und Multipin, Ferrulendurchmesser 1,25 mm, demontierbarer Zentrierhülsenhalter - Teil 001: Technische Lieferbedingungen This European Standard was approved by CEN on 10 October 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, Croatia, 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 © 2010 CEN All rights of exploitation in any form and by any means reserved worldwide for CEN national Members. Ref. No. EN 4645-001:2010: ESIST EN 4645-001:2010



EN 4645-001:2010 (E) 2 Contents Page Foreword .3 Introduction .4 1 Scope .5 2 Normative references .5 3 Terms and definitions .6 4 Description .6 4.1 General .6 4.2 Receptacle .6 4.3 Plug .7 4.4 Materials and surface treatment .7 5 Design .7 5.1 Housings .7 5.2 Inserts .8 5.3 Removable sleeve holder .8 6 Definition drawings and masses .8 6.1 General .8 6.2 Mating dimensions of receptacles with male insert.8 6.3 Mating dimensions of plugs with female insert . 10 6.4 Displacement of the optical contact in the female insert . 11 6.5 Receptacle and plug polarization . 12 7 Tests . 24 7.1 Tests according to EN 2591-100 . 24 7.2 Special tests − Fluid resitance . 29 8 Quality assurance . 30 8.1 General . 30 8.2 Qualification . 30 8.3 Maintenance of qualification . 34 9 Designation and marking . 35 9.1 Connectors (receptacle or plug) . 35 9.2 Optical contact . 36
SIST EN 4645-001:2010



EN 4645-001:2010 (E) 3 Foreword This document (EN 4645-001:2010) 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 July 2010, and conflicting national standards shall be withdrawn at the latest by July 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, Croatia, 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 4645-001:2010



EN 4645-001:2010 (E) 4 Introduction This family of fibre optic connectors is derived from MIL-DTL-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. Standards for optical contacts are defined in EN 4639-002. The connectors with shell size 11 and 13 are 100 % scoop proof. The optical contacts are capable of accepting single cable sizes up to a maximum of 2 mm outside diameter. SIST EN 4645-001:2010



EN 4645-001:2010 (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 threaded ring coupling circular fibre optic self-locking connectors, fire-resistant or non fire-resistant, intended for use in a temperature range from − 65 °C to 150 °C continuous. 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. ISO 68-1:1998, ISO general purpose screw threads — Basic profile — Part 1: Metric screw threads ISO 261:1998, ISO general purpose metric screw threads — General plan
ISO 262:1998, ISO general purpose metric screw threads — Selected sizes for screws, bolts and nuts
ISO 965-1:1998, ISO general-purpose metric screw threads — Tolerances — Part 1: Principles and basic data
EN 2591-100*, Aerospace series — Elements of electrical and optical connection — Test methods — Part 100: General. EN 3197, Aerospace series — Installation of aircraft electrical and optical interconnection systems1)
EN 3645-001, Aerospace series — Connectors, electrical, circular, scoop-proof, triple start threaded coupling, operating temperature 175 °C or 200 °C continuous — Part 001: Technical specification 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 4639-002, Aerospace series — Connectors, optical, rectangular, modular, multicontact, 1,25 diameter ferrule, with removable alignment sleeve holder — Part 002: List of product standards EN 4639-101, Aerospace series — Connectors, optical, rectangular, modular, multicontact, 1,25 diameter ferrule, with removable alignment sleeve holder — Part 101: Optical contact for cable EN 4641-100 — Operating temperatures between − 65 °C and 125 °C — Product standard EN 4639-102, Aerospace series — Connectors, optical, rectangular, modular, multicontact, 1,25 diameter ferrule, with removable alignment sleeve holder — Part 102: Optical contact for cable EN 4641-102 — Operating temperatures between − 55 °C and 100 °C — Product standard EN 4645-003, Aerospace series — Connectors, optical, circular, single and multipin, coupled by threaded ring, self-locking 1,25 mm diameter ferrule with removable alignment sleeve holder — Part 003: Square flange receptacle — Product standard
* And all parts quoted in this standard. 1) Published as ASD Prestandard at the date of publication of this standard. SIST EN 4645-001:2010



EN 4645-001:2010 (E) 6 EN 4645-004, Aerospace series — Connectors, optical, circular, single and multipin, coupled by threaded ring, self-locking 1,25 mm diameter ferrule with removable alignment sleeve holder — Part 004: Jam nut receptacle — Product standard EN 4645-005, Aerospace series — Connectors, optical, circular, single and multipin, coupled by threaded ring, self-locking 1,25 mm diameter ferrule with removable alignment sleeve holder — Part 005: Plug — Product standard EN 9133, Aerospace series — Quality management systems — Qualification procedure for aerospace standard parts MIL-DTL-38999, Connector, electrical circular, miniature, high density quick disconnect (bayonet, threaded and breech coupling), environment resistant, removable crimp and hermetic solder contacts, general specification for2)
MIL-STD-1373, Screw thread, modified, 60°, stub, double2) 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 This document describe optical connector arrangements for plug and receptacle housings. Plug and receptacle housings conform to EN 3645-001 standard. The connectors use rear removable optical contacts with a ferrule diameter of 1,25 mm. The receptacles connector with male arrangement as specified EN 4645-003 and EN 4645-004. The plug connector with female arrangement as specified EN 4645-005. The female arrangement is equipped of a removable alignment sleeve holder as specified EN 4645-005. The sleeve holder is delivered with the female arrangement. It is considered as a part of the female arrangement (specific design per manufacturer). The sleeve holder can be supplied separately only for repair purpose. 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 position of the keying arrangement is given in EN 3645-001. The visual check of coupling is obtained by masking of a red coloured band on the receptacle. 4.2 Receptacle The receptacle may be attached by:
2) Published by: Department of Defense (DoD), the Pentagon, Washington, DC 20301, USA. SIST EN 4645-001:2010



EN 4645-001:2010 (E) 7  square flange;  jam nut. 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 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 fixed relative to the main key. The coupling ring permanently fitted on the plug enables the connectors to be coupled and uncoupled. 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. 4.4 Materials and surface treatment 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 Housings The material of the connector housings and fittings shall be of suitable material protected against corrosion by passivation, nickel or cadmium plating (see EN 3197) as specified in the product standard. 4.4.3 Optical contacts and alignment sleeves The material of the optical contacts and alignment sleeves shall be of suitable materials as specified in the product standard. The optical contacts in both plug and receptacle are sprung-loaded. The spring force is defined in the product standard. 4.4.4 Metallic or non-metallic materials The materials used for insert, seals and grommets shall have hardness and mechanical characteristics consistent with the required use. The material used for guiding pins shall have hardness and mechanical characteristics consistent with the required use. 5 Design 5.1 Housings The connector housings shall be in one unit. They contain teeth at the rear over the entire periphery and shall accommodate the cable outlets and other fittings. The receptacle shall be fitted with a seal for sealing the coupled housings. SIST EN 4645-001:2010



EN 4645-001:2010 (E) 8 The jam nut receptacle housing shall contain an O-ring seal (panel seal). The lock nut shall be provided with wire locking holes. Threads shall conform to standards ISO/R 68:1973, ISO/R 261:1973, ISO/R 262:1973 and ISO/R 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 it is screwed clockwise and disengage when it is unscrewed counter clockwise. The coupling ring shall be designed to provide a hand 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. 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 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 individual installation of the contacts without removal of the connector.
Fitting and removal of the contacts shall be from the rear. For ease of operation, tools as per MIL-I-81969/1-03 standard (P/N for size 16) may be used. Contact position identification shall be permanent and contrasted on the rear and the front face of the insert or grommet. The female insert (mounted into the plug connector), including the sleeve holder, shall incorporate two alignment pins for multiway connectors. The male insert (mounted into the receptacle connector) shall incorporate two alignment holes for multiway connectors. 5.3 Removable sleeve holder The removable sleeve holder shall be assembled onto the plug connector. 6 Definition drawings and masses 6.1 General The general dimensions and the masses of receptacles, plugs and protective covers are given in the product standards. 6.2 Mating dimensions of receptacles with male insert
The mating dimensions of receptacles with the male insert are shown in Figure 1 for shell sizes 11, 13, 15, 17, 19, 21, 23 and 25 and in Table 1.
SIST EN 4645-001:2010



EN 4645-001:2010 (E) 9 Dimensions and tolerances are in millimetres.
Key 1 Initial contact with static seal. 2 Optical contact rear limit stop onto the insert 3 Alignment pin hole 4 Unmated position 5 Mechanical bottom of the receptacle onto the plug
NOTE Other dimensions are in accordance with EN 3645-001. Figure 1 Table 1 Housing size A
Gask loc Ø B
11 14,73 14,50 1,615 1,565 13 2,20 2,15 15 17 19 21 23 25
SIST EN 4645-001:2010



EN 4645-001:2010 (E) 10 6.3 Mating dimensions of plugs with female insert
The mating dimensions of plugs with the female insert are shown in Figure 2 for shell sizes 11, 13, 15, 17, 19, 21, 23 and 25 and in Table 2. Dimensions and tolerances are in millimetres.
Key 1 Mechanical bottom of the receptacle onto the plug 2 Optical contact rear limit stop onto the insert 3 Alignment pins 4 Unmated position 5 Detail of the two alignment pins extremity 6 Detail of the alignment sleeve holder cavities 7 Alignment sleeve extremity NOTE Other dimensions are in accordance with EN 3645-001. Figure 2 SIST EN 4645-001:2010



EN 4645-001:2010 (E) 11 Table 2 Housing size Ø B max. 11 1,405 13 2,015 15 17 19 21 23 25
6.4 Displacement of the optical contact in the female insert
6.4.1 Receptacle with female insert and plug with male insert The displacement of the optical contact in the female insert is shown on Figure 3. Dimensions and tolerances are in millimetres.
Key 1 Plug/Receptacle mechanical bottoming Figure 3 1 SIST EN 4645-001:2010



EN 4645-001:2010 (E) 12 6.4.2 Coupling contact condition See Figure 4. Dimensions and tolerances are in millimetres.
Key 1 Optical contact to sleeve holder stop 2 Sleeve cavity inner diameter 3 Sleeve to sleeve holder cavity stop 4 Sleeve outer diameter Condition in every case, J >>>> 0 The different shapes and dimensions of the sleeve cavity must be defined to warranty this condition. Figure 4 6.5 Receptacle and plug polarization 6.5.1 Polarization See Figure 5. SIST EN 4645-001:2010



EN 4645-001:2010 (E) 13
Dimensions and tolerances are in millimetres.
Receptacle Plug NOTE All dimensions are in accordance with EN 3645-001. Figure 5 6.5.2 Dimensions of the rear part The dimensions of the rear part of receptacles and plugs with threads for mounting accessories are shown in Figure 6 and Table 3.
SIST EN 4645-001:2010



EN 4645-001:2010 (E) 14 Dimensions are in millimetres.
Figure 6
Table 3 Housing size A max. 11 11,05 13 14,00 15 16,92 17 20,09 19 22,78 21 25,96 23 29,13 25 32,31
6.5.3 Contact arrangements The contact arrangements in the inserts are specified by Figures 8 to 14. The following tolerances apply to the inserts fitted in the housings: a) For a plug:
1) center of each alignment pin:
Ø 0,55 GD 2) center of each sleeve holder cavity entrance:
Ø 0,41 P1P2 b) For a receptacle: 1) center of each alignment pin hole:
Ø 0,51 GD 2) center of each contact end:
Ø 0,55 C1C2 SIST EN 4645-001:2010



EN 4645-001:2010 (E) 15
where G and D are defined in 6.5; C1 and C2
...

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