EN 4645-002:2009
(Main)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 002: Specification of performance and contact arrangements
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 002: Specification of performance and contact arrangements
This European Standard defines the performance and contact arrangements of circular optical connectors, coupled by triple start threaded ring.
Luft- und Raumfahrt - Optische Rundsteckverbinder mit Schraubkupplung, selbstsichernd, Einzel- und Multipin, Ferrulendurchmesser 1,25 mm, demontierbarer Zentrierhülsenhalter - Teil 002: Leistungsdaten und Kontaktanordnungen
Dieses Dokument legt Leistungsdaten und Kontaktanordnungen für optische Rundsteckverbinder mit dreigängiger
Schraubkupplung fest.
Série aérospatiale - Connecteurs optiques circulaires à accouplement par bague filetée, auto-freinante ferrule 1,25, équipés d’un porte sleeve démontable - Partie 002 : Spécification de performances et arrangements des contacts
Aeronavtika - Konektorji, optični, okrogli, z enim ali več zatiči, priključeni z navojnim obročkom, samozapiralni, s premerom kapice 1,25, s snemljivo centrirno pušo - 002. del: Specifikacija lastnosti in razporeditev kontaktov
Ta evropski standard definira lastnosti in razporeditev kontaktov za okrogle optične konektorje, priključene s hitro spojko z navojem.
General Information
- Status
- Published
- Publication Date
- 10-Nov-2009
- Withdrawal Date
- 30-May-2010
- Technical Committee
- ASD-STAN - Aerospace
- Drafting Committee
- ASD-STAN/D 2 - Electrical
- Current Stage
- 9093 - Decision to confirm - Review Enquiry
- Start Date
- 21-Jan-2025
- Completion Date
- 28-Jan-2026
Relations
- Effective Date
- 28-Jan-2026
- Effective Date
- 28-Jan-2026
- Effective Date
- 28-Jan-2026
- Effective Date
- 28-Jan-2026
- Effective Date
- 28-Jan-2026
- Effective Date
- 28-Jan-2026
- Effective Date
- 28-Jan-2026
- Effective Date
- 28-Jan-2026
- Effective Date
- 28-Jan-2026
- Effective Date
- 28-Jan-2026
Overview
EN 4645-002:2009 is a CEN European Standard in the Aerospace series that specifies the performance and contact arrangements for circular optical connectors. It covers single‑ and multi‑pin, circular optical connectors coupled by a triple‑start threaded ring, featuring a self‑locking 1.25 mm diameter ferrule and a removable alignment sleeve holder. The standard defines how connectors must perform, how contacts are arranged across shell sizes, and the environmental and mechanical conditions that apply.
Key topics and requirements
- Scope: Performance and contact arrangements of circular optical connectors coupled by threaded ring (triple‑start).
- Connector features: Single and multipin configurations, 1.25 mm ferrule with removable alignment sleeve holder, self‑locking threaded coupling.
- Housing sizes & contact layouts: Shell sizes 11–25 with defined contact counts (e.g., 11→2 ways, 25→32 ways) and front‑face contact arrangements (figures provided for 2 to 32 optical ways).
- Environmental classes & materials: Defined material and corrosion resistance classes (composite, aluminium, stainless steel, nickel‑bronze) with salt spray performance levels.
- Permissible cables & contacts: Compatibility with EN 4641 series cables (0.9 mm and 1.8 mm outer diameters) and optical contact types (tight/loose structure per EN 4639‑101/102).
- Combinations & coding: Rules for permissible plug/receptacle shell combinations, contact designation and sleeve material coding (e.g., zirconia for multimode/single‑mode).
- Operating conditions: Climatic and mechanical performance referenced to product standards; fluid and corrosion resistance references in EN 4645‑001.
- Auxiliary provisions: Polarization positions, filler plug use (EN 4529‑002), tooling, assembly/termination and cleaning references (TR 4647).
Applications and users
EN 4645‑002 is intended for use where reliable fiber‑optic interconnects are required in aerospace and defence systems. Typical applications include:
- Avionics and aircraft data links
- Space and launch vehicle optical interconnects
- Military and ruggedized fiber‑optic harnesses Primary users:
- Connector and cable manufacturers (product design, qualification)
- Aircraft/space systems integrators and OEMs (specification and procurement)
- Test laboratories and qualification engineers
- Maintenance, repair and overhaul (MRO) organizations
Related standards
- EN 4645‑001: Technical specification for the series
- EN 4645‑003, -004, -005: Product standards for receptacles and plugs
- EN 4641‑100/101/102: Compatible aerospace optical cable product standards
- EN 4639‑101/102: Optical contact product standards
- EN 4529‑002: Sealing plugs index
- TR 4647: Termination, cleaning and fibre/cable guidance
Keywords: EN 4645-002, aerospace optical connectors, circular optical connectors, 1.25 mm ferrule, triple-start threaded ring, contact arrangements, optical connector performance.
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Frequently Asked Questions
EN 4645-002:2009 is a standard published by the European Committee for Standardization (CEN). 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 002: Specification of performance and contact arrangements". This standard covers: This European Standard defines the performance and contact arrangements of circular optical connectors, coupled by triple start threaded ring.
This European Standard defines the performance and contact arrangements of circular optical connectors, coupled by triple start threaded ring.
EN 4645-002:2009 is classified under the following ICS (International Classification for Standards) categories: 49.060 - Aerospace electric equipment and systems; 49.090 - On-board equipment and instruments. The ICS classification helps identify the subject area and facilitates finding related standards.
EN 4645-002:2009 has the following relationships with other standards: It is inter standard links to EN 4639-101:2007, EN 4645-005:2009, EN 4529-002:2019, EN 4645-003:2009, EN 4645-004:2009, EN 4641-102:2025, EN 4639-102:2007, EN 4645-001:2010, EN 4641-101:2015, EN 4533-004:2018. Understanding these relationships helps ensure you are using the most current and applicable version of the standard.
EN 4645-002:2009 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.YLuft- und Raumfahrt - Optische Rundsteckverbinder mit Schraubkupplung, selbstsichernd Ferrulendurchmesser 1,25 mm, demontierbarer Zentrierhülsenhalter - Teil 002: Leistungsdaten und KontaktanordnungenSérie aérospatiale - Connecteurs optiques circulaires à accouplement par bague filetée, auto-freinante ferrule 1,25, équipés d'un porte sleeve démontable - Partie 002: Spécification de performances et arrangements des contactsAerospace series - Connectors, optical, circular, single and multipin, coupled by threaded ring, self-locking 1,25 mm diameter ferrule with removable alignment sleeve holder - Part 002: Specification of performance and contact arrangements49.060Aerospace electric equipment and systemsICS:Ta slovenski standard je istoveten z:EN 4645-002:2009SIST EN 4645-002:2010en01-januar-2010SIST EN 4645-002:2010SLOVENSKI
STANDARD
EUROPEAN STANDARD NORME EUROPÉENNE EUROPÄISCHE NORM
EN 4645-002
November 2009 ICS 49.060 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 002: Specification of performance and contact arrangements
Série aérospatiale - Connecteurs optiques circulaires à accouplement par bague filetée, auto-freinante ferrule 1,25, équipés d'un porte sleeve démontable - Partie 002 : Spécification de performances et arrangements des contacts
Luft- und Raumfahrt - Optische Rundsteckverbinder mit Schraubkupplung, selbstsichernd, Einzel- und Multipin, Ferrulendurchmesser 1,25 mm, demontierbarer Zentrierhülsenhalter - Teil 002: Leistungsdaten und Kontaktanordnungen 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, 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 4645-002:2009: ESIST EN 4645-002:2010
1 Scope This European Standard defines the performance and contact arrangements of circular optical connectors, coupled by triple start threaded ring. 2 Normative references The following referenced documents are indispen
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