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
I13 - Imaginarni 13
Current Stage
6060 - National Implementation/Publication (Adopted Project)
Start Date
25-Jan-2010
Due Date
01-Apr-2010
Completion Date
25-Jan-2010

Overview

EN 4645-001:2010 is a CEN aerospace technical specification for circular fibre optic connectors used in aerospace applications. It covers threaded ring coupling, self-locking connectors with a 1.25 mm ferrule and a removable alignment sleeve holder, specifying general characteristics, qualification, acceptance, quality assurance and test programs for both fire‑resistant and non‑fire‑resistant variants intended for continuous operation from −65 °C to 150 °C.

Key topics and technical requirements

  • Connector type and design
    • Circular optical connectors with threaded ring coupling and self‑locking feature.
    • 1.25 mm ferrule optical contacts with removable alignment sleeve holder (sleeve supplied with female arrangement; removable for repair).
    • Polarization by keyways and keys; visual mating indicator (masking of a red band).
    • Housing designs include square‑flange and jam‑nut receptacles; plugs with permanently fitted coupling rings.
  • Materials and construction
    • Materials and surface treatments specified to control corrosion and compatibility (passivation, plating options); inserts made of hard material; sprung‑loaded optical contacts.
    • Sealing arrangements for coupled housings and panel seals for jam‑nut receptacles.
  • Performance envelope
    • Rated for continuous temperatures −65 °C to 150 °C; available as fire‑resistant or non fire‑resistant designs.
  • Qualification, testing and quality assurance
    • Test programs and groups referenced to EN 2591‑100 (general test methods) plus special tests such as fluid resistance.
    • Requirements for qualification, acceptance and maintenance of qualification; quality management references (e.g., EN 9133).
  • Mechanical and dimensional data
    • Mating dimensions, shell sizes (11–25), insert location, alignment pins/holes and mating mechanics specified (see product parts for dimensional drawings).

Practical applications

  • Onboard aerospace fibre optic interconnects for avionics, sensors, data buses and mission systems where high reliability, scoop‑proof mating, and harsh‑environment performance are required.
  • Use cases include aircraft wiring harnesses, removable line‑replaceable units (LRUs), and systems requiring quick, serviceable optical contact access (end‑face cleaning and contact replacement).

Who uses this standard

  • Aerospace connector manufacturers and suppliers
  • Avionics and harness designers
  • Procurement and specification engineers
  • Test laboratories and certification bodies
  • Quality assurance teams managing qualification and acceptance

Related standards

  • EN 3645‑001 (connector housings / mechanical interfaces)
  • EN 4639‑002 (optical contact standards)
  • EN 2591‑100 (test methods)
  • EN 4645 parts 003, 004, 005 (product standards for receptacles and plugs)
  • MIL‑DTL‑38999 (heritage mechanical interface reference)

Keywords: EN 4645‑001:2010, aerospace optical connectors, circular fibre optic connectors, threaded ring coupling, 1.25 mm ferrule, removable alignment sleeve holder, connector qualification, aerospace connector tests.

Standard

SIST EN 4645-001:2010

English language
36 pages
Preview
Preview
e-Library read for
1 day

Frequently Asked Questions

SIST EN 4645-001:2010 is a standard published by the Slovenian Institute for Standardization (SIST). Its full title is "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 covers: 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.

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.

SIST EN 4645-001:2010 is classified under the following ICS (International Classification for Standards) categories: 49.060 - Aerospace electric equipment and systems. The ICS classification helps identify the subject area and facilitates finding related standards.

SIST EN 4645-001:2010 is available in PDF format for immediate download after purchase. The document can be added to your cart and obtained through the secure checkout process. Digital delivery ensures instant access to the complete standard document.

Standards Content (Sample)


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
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

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

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

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.
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
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

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

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

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.
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

where G and D are defined in 6.5; C1 and C2
...

Questions, Comments and Discussion

Ask us and Technical Secretary will try to provide an answer. You can facilitate discussion about the standard in here.

Loading comments...