Aerospace series - Connectors, optical, rectangular, rack and panel, multicontact, 1,25 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 rectangular multipin fibre optic connectors.

Luft- und Raumfahrt - Optischer Einschub-Steckverbinder, rechteckig, vielpolig, Ferrulendurchmesser 1,25, demontierbarer Zentrierhülsenhalter - Teil 001: Technische Lieferbedingungen

Diese Norm legt die allgemeinen Eigenschaften, Bedingungen für Qualifikation, Annahme und Qualitätssicherung,
sowie die Prüfprogramme und -gruppen für vielpolige Lichtwellenleiter-Rechtecksteckverbinder,
fest.

Série aérospatiale - Connecteurs, optiques, rectangulaires, à contacts multiples, rackables, férule diamètre 1,25, équipés d’un porte sleeve démontable - Partie 001: Spécification technique

Aeronavtika - Konektorji, optični, pravokotni, s stojalom in ploščo, večkontaktni, s premerom kapice 1,25, s snemljivo centrirno pušo - 001. del: Tehnična specifikacija

General Information

Status
Published
Publication Date
24-Feb-2009
Withdrawal Date
30-Aug-2009
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
11-Feb-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
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 4640-001:2009 is a CEN European Standard that defines the technical specification for aerospace rectangular, rack-and-panel, multicontact fibre optic connectors using 1.25 mm diameter ferrules with a removable alignment sleeve holder. The family of connectors is derived from ARINC Specification 600 and is intended for high‑reliability onboard aircraft optical interconnects. The standard covers general characteristics, qualification, acceptance, quality assurance and the required test programs and groups.

Key topics and requirements

  • Scope and description
    • Rectangular multipin optical connector inserts for plug and receptacle housings (ARINC 600 compatible).
    • Precise optical alignment using removable alignment sleeve holders; sleeve holder supplied with female insert (available separately for repair only).
    • Optical contacts accept cable sizes up to 2 mm outside diameter.
  • Design and materials
    • Insert and contact design to prevent cracks, flaking or mechanical failure during normal operation.
    • Spring‑loaded optical contacts; materials and sleeve specifications referenced to EN 4639-101 and EN 4640-002.
    • Corrosion control for dissimilar metal contacts to limit galvanic EMF to ≤ 0.25 V (see EN 3197).
  • Dimensional and mechanical features
    • Mating dimensions, contact arrangements and cavity layouts specified (multiple arrangements for shell sizes).
    • Rear entry contact installation and removal; contact position identification permanently marked.
  • Testing, qualification and quality assurance
    • Test programs reference EN 2591-100 test methods (visual, dimensional, environmental, endurance, salt mist, fluid resistance, etc.).
    • Examples in the standard: visual inspection criteria, salt mist exposure (48 h), and linkage to product standards for test limits.
    • Quality management and qualification procedures follow aerospace quality norms (e.g., EN 9133).

Applications

  • Onboard aircraft optical data links and avionics racks where high reliability, field serviceability and ARINC 600 compatibility are required.
  • Use cases include flight‑critical systems, line‑replaceable units (LRUs), rack and panel interfaces, and retrofit/repair operations where removable sleeve holders ease maintenance.
  • Typical users: aerospace OEMs, avionics design engineers, connector manufacturers, maintenance/repair organizations, procurement and quality assurance teams.

Related standards

  • EN 4639-101 - Optical contact for cable (product standard referenced)
  • EN 4640-002 / EN 4640-003 / EN 4640-004 - Parts 002–004 (performance and product standards)
  • EN 2591-100 - Test methods (general)
  • EN 3197 - Installation guidance and corrosion control
  • ARINC Specification 600 - Housing and interface compatibility

Keywords: EN 4640-001:2009, aerospace fibre optic connectors, rectangular multipin connector, 1.25 mm ferrule, removable alignment sleeve holder, ARINC 600, avionics connectors, connector qualification, test programs.

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Frequently Asked Questions

EN 4640-001:2009 is a standard published by the European Committee for Standardization (CEN). Its full title is "Aerospace series - Connectors, optical, rectangular, rack and panel, multicontact, 1,25 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 rectangular multipin fibre optic connectors.

This standard specifies the general characteristics, the conditions for qualification, acceptance and quality assurance, as well as the test programs and groups for rectangular multipin fibre optic connectors.

EN 4640-001:2009 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.

EN 4640-001:2009 has the following relationships with other standards: It is inter standard links to EN 2591-6318:2001, EN 2591-319:1997, EN 2591-6324:2001, EN 2591-407:1999, EN 2591-6406:2001, EN 2591-604:2001, EN 2591-6301:2001, EN 2591-615:2001, EN 2591-409:1999, EN 3197:2010, EN 2591-312:1997, EN 2591-609:2005, EN 2591-6314:2001, EN 2591-602:2001, EN 2591-102:1996. Understanding these relationships helps ensure you are using the most current and applicable version of the standard.

EN 4640-001:2009 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.LþQDVSHFLILNDFLMDLuft- und Raumfahrt - Optischer Rechtecksteckverbinder, Gehäuse, Einschub, Steckverbinder, Multipin, Ferrulendurchmesser 1,25 mm, demontierbarer Zentrierhülsenhalter - Teil 001: Technische LieferbedingungenSérie aérospatiale - Connecteurs, optiques, rectangulaires, à contacts multiples, rackables, férule diamètre 1,25, équipés d’un porte sleeve démontable - Partie 001: Spécification techniqueAerospace series - Connectors, optical, rectangular, rack and panel, multicontact, 1,25 diameter ferrule, with removable alignment sleeve holder - Part 001: Technical specification49.060Aerospace electric equipment and systemsICS:Ta slovenski standard je istoveten z:EN 4640-001:2009SIST EN 4640-001:2009en01-maj-2009SIST EN 4640-001:2009SLOVENSKI
STANDARD
EUROPEAN STANDARDNORME EUROPÉENNEEUROPÄISCHE NORMEN 4640-001February 2009ICS 49.060 English VersionAerospace series - Connectors, optical, rectangular, rack andpanel, multicontact, 1,25 diameter ferrule, with removablealignment sleeve holder - Part 001: Technical specificationSérie aérospatiale - Connecteurs, optiques, rectangulaires,à contacts multiples, rackables, férule diamètre 1,25,équipés d'un porte sleeve démontable - Partie 001:Spécification techniqueLuft- und Raumfahrt - Optischer Rechtecksteckverbinder,Gehäuse, Einschub, Steckverbinder, Multipin,Ferrulendurchmesser 1,25 mm, demontierbarerZentrierhülsenhalter - Teil 001: TechnischeLieferbedingungenThis European Standard was approved by CEN on 11 July 2008.CEN members are bound to comply with the CEN/CENELEC Internal Regulations which stipulate the conditions for giving this EuropeanStandard the status of a national standard without any alteration. Up-to-date lists and bibliographical references concerning such nationalstandards 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 translationunder the responsibility of a CEN member into its own language and notified to the CEN Management Centre has the same status as theofficial 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 STANDARDIZATIONCOMITÉ EUROPÉEN DE NORMALISATIONEUROPÄISCHES KOMITEE FÜR NORMUNGManagement Centre:
Avenue Marnix 17,
B-1000 Brussels© 2009 CENAll rights of exploitation in any form and by any means reservedworldwide for CEN national Members.Ref. No. EN 4640-001:2009: ESIST EN 4640-001:2009

MIL-I-81969/14, Installing and removal tools, connector electrical contact, type III, class 2, composition B 3
* And all parts quoted in this standard. 1 Published as ASD Prestandard at the date of publication of this standard. 2 Published by: AERONAUTICAL RADIO, INC. 2551 Riva road, Annapolis, Maryland 21401-7435 USA. 3 Published by: Department of Defence (DOD), the Pentagon, Washington, D.C. 20301 USA. SIST EN 4640-001:2009

The receptacles connector contain female insert as specified in EN 4640-004.
The female insert is composed of an insert and a removable sleeve holder as specified in EN 4640-004. The sleeve holder is delivered with the female insert. It is considered as a part of the female insert (specific design per manufacturer). The sleeve holder can be supplied separately only for repair purpose. The optical contact is in accordance with EN 4639-101. The connectors are keyed as specified in ARINC Specification 600. Connector type designation as specified in ARINC Specification 600. 4.2 Receptacle Receptacle description as specified in ARINC Specification 600. 4.3 Plug Plug description as specified in ARINC Specification 600. 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 connector housing description as specified in ARINC Specification 600. SIST EN 4640-001:2009

Fitting and removal of the contacts shall be from the rear. For ease of operation, tools as per MIL-I-81969/14-03 (P/N for size 16) may be used. Contact position identification shall be permanent and contrasted on the rear face of the insert or grommet. 6 Definition drawings 6.1 General The general dimensions and the masses of receptacles, plugs and protective covers are given in the product standards. 6.2 Receptacle All housing dimensions are defined in ARINC Specification 600. 6.3 Plug All housing dimensions are defined in ARINC Specification 600. SIST EN 4640-001:2009

Key 1 Receptacle connector 5 Mechanical bottom of receptacle 2 Mechanical bottom of plug 6 Plug connector 3 Front face of the insert 7 ∅ Pin cavity position A 4 Sleeve holder Figure 1 6.5 Mating dimensions The mating dimensions receptacle (free position) are shown in Figure 2. SIST EN 4640-001:2009

Sleeve-holder screw cavity (Sleeve-holder not show)
Optical contact position Key 1 Limit stop of the alignment sleeve holder screw 2 (unmated position) 3 Mechanical bottom of the receptacle NOTE Other dimensions in accordance with ARINC Specification 600. Figure 2 SIST EN 4640-001:2009

Key 1 (unmated position) 2 Mechanical bottom of the plug NOTE Other dimensions in accordance with ARINC Specification 600. Figure 3 6.5.1 Receptacle with female insert and plug with male insert The displacement of the optical contact in the connector is shown in Figure 4. Dimensions and tolerances are in millimetres.
Mating position Key 1 Mechanical bottom 2 Receptacle connector 3 Plug connector Figure 4 1 2 min.7,01 5,92 1 2 3 SIST EN 4640-001:2009

« X2 » contact optically mated Optical contact 18,68 mm [.735] 16,53 mm [.650]
# 22 16,30 mm [.642] b 13,89 mm [.547] # 22 20,32 mm [.800] a 18,99 mm [.748]
Optical contact 16,25 mm [.634] 13,28 mm [.523] # 20 20,54 mm [.809] a 18,82 mm [.741]
# 20 16,48 mm [.649] b 14,04 mm [.553] # 16 25,70 mm [1.012] a 24,10 mm [.949]
# 16 18,42 mm [.725] b 20,77 mm [.818] # 12 25,60 mm [1.008] a 24,20 mm [.953]
# 12 19,60 mm [.772] b 17,57 mm [.692] a Values for # 22, # 20, # 16, # 12 electrical contacts are for « contact entering mating insulator » extracted from ARINC Specification 600. These values are given for information only. Refer to ARINC Specification 600 for more information.
b Values for # 22, # 20, # 16, # 12 electrical contacts are for « contact electrically engaged » extracted from ARINC Specification 600. These values are given for information only. Refer to ARINC Specification 600 for more information. Figure 5 1 1 2 2 3 3 4 4 5 5 6 7 768 9 89SIST EN 4640-001:2009

Key 1 ∅ D2 - Sleeve cavity inner diameter 2 Sleeve to sleeve-holder cavity stop 3 Optical contact to sleeve-holder stop Condition: in every case, J >>>> 0 The different shapes and dimensions of the sleeve cavity must be defined to warranty this condition. Figure 6 6.5.4 Contact arrangements Identification of the contact position shall be permanently marked in contrasting colour on the rear face of the module. Contact arrangements 20F12Q8 for shell size 2 or 3: see Figure 7. SIST EN 4640-001:2009

Receptacle rear face Plu
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