EN 4869-104:2024

Aerospace series - Expanded beam termini, fibre optic non-physical contact in EN 3645 standard cavities - Part 104: Multimode female termini size 12 - Technical specification

This document details the dimensions and performance requirements of a multimode female size 12, non-physical contact expanded beam terminus. This terminus is suitable for use with connectors which have standard size 12 socket crimp contact cavities (series I and III): connectors with cavities for contact of type EN 3155-009F12.

Luft- und Raumfahrt - Strahlaufweitender Anschluss, berührungsloser Lichtwellenleiterkontakt in EN 3645-Standardkontaktkammer - Teil 104: Multimode-Buchsenanschluss, Größe 12 - Technische Lieferbedingungen

Dieses Dokument legt die Maße und Leistungsanforderungen eines berührungslosen Multimode-Buchsenanschlusses der Größe 12 mit strahlaufweitendem Anschluss fest. Dieser Anschluss ist (für die Anwendung) mit Steckverbindern anwendbar, die über Standardkontaktkammern der Größe 12 für crimpbare Buchsenkontakte (Reihen I und III) verfügen: Steckverbinder mit Kontaktkammern für Kontakte des Typs EN 3155 009F12.

Série aérospatiale - Terminaisons à faisceau élargi, contact à fibre optique non physique dans des cavités EN 3645 standard - Partie 104 : Terminaisons femelles multimodes taille 12 - Spécification technique

Le présent document spécifie les exigences de dimensions et de performances d'une terminaison femelle multimode de taille 12 à faisceau élargi, à contact non physique. Cette terminaison est applicable (à une utilisation) avec des connecteurs disposant de cavités de contact à sertir femelle (séries I et III) de taille 12 standard : connecteurs avec cavités pour contact de type EN 3155 009F12.

Aeronavtika - Razširjeni optični zaključki, nefizični stik optičnih vlaken v standardnih votlinah po standardu EN 3645 - 104. del: Večrodovni ženski zaključki velikosti 12 - Tehnična specifikacija

Ta dokument določa mere in zahtevane lastnosti večrodovnega razširjenega optičnega ženskega zaključka velikosti 12,
z nefizičnim stikom. Ta zaključek se uporablja s konektorji, ki imajo standardne votline z 12-vtičnimi kontakti za stiskanje (seriji I in III): konektorji z votlinami za kontakt tipa EN 3155-009F12.

General Information

• Status: Published
• Publication Date: 03-Dec-2024
• ICS: 49.090 - On-board equipment and instruments
• Technical Committee: ASD-STAN - Aerospace
• Drafting Committee: ASD-STAN/D 2/S 10 - Optical
• Current Stage: 6060 - Definitive text made available (DAV) - Publishing
• Start Date: 04-Dec-2024
• Completion Date: 04-Dec-2024
• Ref Project: SIST EN 4869-104:2025 - Aerospace series - Expanded beam termini, fibre optic non-physical contact in EN 3645 standard cavities - Part 104: Multimode female termini size 12 - Technical specification

Overview

EN 4869-104:2024 defines the technical specification for multimode female size 12 expanded beam termini designed for non-physical contact (expanded beam) fibre optic interfaces in EN 3645 standard cavities. Published by CEN for the aerospace series, this standard covers dimensions, optical interface characteristics and performance requirements for size 12 female termini intended for connectors with standard size 12 socket crimp contact cavities (series I and III) for contact type EN 3155-009F12.

Key topics and technical requirements

• Contact designation and dimensions: Size 12 multimode female termini are specified with dimensional drawings and tolerances to ensure interchangeability with EN 3645 cavities.
• Optical interface: Defined for two multimode fibre sizes:
  • 50 µm/125 µm and 62,5 µm/125 µm cores
  • Wavelengths: 850 nm and 1 300 nm
  • Beam diameter (1/e) specified at multiple distances (e.g., 0.56 mm, 1 mm, 10 mm, 50 mm, 100 mm); tolerance ±3%
  • Beam circularity > 93% and defined beam divergence: 0.00 ±0.1° (0.56–1 mm) and 0.85 ±0.1° (1–10 mm)
  • Air gap between lenses: 0.61 ±0.05 mm
  • AR coating requirements for ball lens: transmittance T > 98% at the specified wavelength
• Performance and testing: Qualification is performed as part of a complete connector assembly per EN 4869-001 and the EN 2591 test series. Representative tests include:
  • Endurance at temperature (1 000 h at elevated temperatures depending on connector type)
  • Damp heat steady state, salt mist, rapid temperature change
  • Mechanical endurance: 500 mating/unmating cycles
  • Axial load: 100 N maintained for 1 minute (3 cycles)
• Cable compatibility for qualification: Cables per EN 4641-100, EN 4641-102, and EN 4641-301 (jacket diameter 1.8 mm / 900 µm buffer).

Applications and users

This standard is intended for:

• Aerospace connector and terminus manufacturers designing expanded beam, non-contact multimode termini
• Connector assembly and cable harness suppliers for aerospace platforms
• Test laboratories and quality engineers performing qualification and environmental testing
• Systems and procurement engineers specifying reliable fibre optic interconnects where rugged, non-contact expanded beam solutions are required (avionics, military/aerospace platforms)

Keywords: EN 4869-104:2024, expanded beam termini, multimode female size 12, EN 3645 standard cavities, fibre optic non-physical contact, aerospace fibre connectors.

Related standards

• EN 4869-001 (expanded beam termini - product/qualification context)
• EN 2591 series (test methods for electrical and optical connection elements)
• EN 4639-101 / EN 4639-102 (connector terminations)
• EN 4641-100 / EN 4641-102 / EN 4641-301 (optical cable product standards)
• EN 3155-009F12 (contact cavity type)
• MIL-I-81969/14 (installation/removal tooling reference)

Standards Content (Sample)

SLOVENSKI STANDARD
01-februar-2025
Aeronavtika - Razširjeni optični zaključki, nefizični stik optičnih vlaken v
standardnih votlinah po standardu EN 3645 - 104. del: Večrodovni ženski zaključki
velikosti 12 - Tehnična specifikacija
Aerospace series - Expanded beam termini, fibre optic non-physical contact in EN 3645
standard cavities - Part 104: Multimode female termini size 12 - Technical specification
Luft- und Raumfahrt - Strahlaufweitender Anschluss, berührungsloser
Lichtwellenleiterkontakt in EN 3645-Standardkontaktkammer - Teil 104: Multimode-
Buchsenanschluss, Größe 12 - Technische Lieferbedingungen
Série aérospatiale - Contact à faisceau expansé, fibre optique sans contact physique,
dans alvéoles standards EN 3645 - Partie 104 : Contact femelle multimode taille 12 -
Spécification technique
Ta slovenski standard je istoveten z: EN 4869-104:2024
ICS:
49.090 Oprema in instrumenti v On-board equipment and
zračnih in vesoljskih plovilih instruments
2003-01.Slovenski inštitut za standardizacijo. Razmnoževanje celote ali delov tega standarda ni dovoljeno.

EN 4869-104
EUROPEAN STANDARD
NORME EUROPÉENNE
December 2024
EUROPÄISCHE NORM
ICS 49.090 Supersedes
English Version
Aerospace series - Expanded beam termini, fibre optic
non-physical contact in EN 3645 standard cavities - Part
104: Multimode female termini size 12 - Technical
specification
Série aérospatiale - Terminaisons à faisceau élargi, Luft- und Raumfahrt - Strahlaufweitender Anschluss,
contact à fibre optique non physique dans des cavités berührungsloser Lichtwellenleiterkontakt in EN 3645-
EN 3645 standard - Partie 104 : Terminaisons femelles Standardkontaktkammer - Teil 104: Multimode-
multimodes taille 12 - Spécification technique Buchsenanschluss, Größe 12 - Technische
Lieferbedingungen
This European Standard was approved by CEN on 19 August 2024.

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-CENELEC 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-CENELEC 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, Republic of North Macedonia, Romania, Serbia, Slovakia, Slovenia, Spain, Sweden, Switzerland, Türkiye and
United Kingdom.
EUROPEAN COMMITTEE FOR STANDARDIZATION
COMITÉ EUROPÉEN DE NORMALISATION

EUROPÄISCHES KOMITEE FÜR NORMUNG

CEN-CENELEC Management Centre: Rue de la Science 23, B-1040 Brussels
© 2024 CEN All rights of exploitation in any form and by any means reserved Ref. No. EN 4869-104:2024 E
worldwide for CEN national Members.

Contents Page
European foreword . 3
1 Scope . 4
2 Normative references . 4
3 Terms and definitions . 6
4 Fibre optic contact designation and dimensions . 6
4.1 Contact designation . 6
4.2 Contact dimensions . 7
4.3 Optical interface . 8
4.4 Cable designation . 10
5 Technical specification . 10
6 Tests according to EN 2591-100 . 10
7 Assembly process instructions . 12
7.1 Cleaning instructions . 12
7.2 Tooling . 12
7.3 Termination instructions . 12
8 Designation . 12
Bibliography . 13

European foreword
This document (EN 4869-104:2024) has been prepared by ASD-STAN.
After enquiries and votes carried out in accordance with the rules of this Association, this document has
received the approval of the National Associations and the Official Services of the member countries of
ASD-STAN, prior to its presentation to CEN.
This document shall be given the status of a national standard, either by publication of an identical text
or by endorsement, at the latest by June 2025, and conflicting national standards shall be withdrawn at
the latest by June 2025.
Attention is drawn to the possibility that some of the elements of this document may be the subject of
patent rights. CEN 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 document: 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, Republic of North
Macedonia, Romania, Serbia, Slovakia, Slovenia, Spain, Sweden, Switzerland, Türkiye and the
United Kingdom.
1 Scope
This document specifies the dimensions and performance requirements of a multimode female size 12,
non-physical contact expanded beam terminus. This terminus is applicable (for use) with connectors
which have standard size 12 socket crimp contact cavities (series I and III): connectors with cavities for
contact of type EN 3155-009F12.
2 Normative references
The following documents are referred to in the text in such a way that some or all of their content
constitutes requirements 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.
EN 2591-100, Aerospace series — Elements of electrical and optical connection — Test methods —
Part 100: General
EN 2591-304, Aerospace series — Elements of electrical and optical connection — Test methods —
Part 304: Damp heat steady state
EN 2591-407, Aerospace series — Elements of electrical and optical connection — Test methods —
Part 407: Durability of contact retention system and seals
EN 2591-601, Aerospace series — Elements of electrical and optical connection — Test methods —
Part 601: Optical elements — Insertion loss
EN 2591-602, Aerospace series — Elements of electrical and optical connection — Test methods —
Part 602: Optical elements — Variation of attenuation and optical discontinuity
EN 2591-604, Aerospace series — Elements of electrical and optical connection — Test methods —
Part 604: Optical elements — Cleaning capability of optical face
EN 2591-605, Aerospace series — Elements of electrical and optical connection — Test methods —
Part 605: Optical elements — Return loss
EN 2591-609, Aerospace series — Elements of electrical and optical connection — Test methods —
Part 609: Optical elements — Effectiveness of cable attachment — Cable cyclic flexing
EN 2591-610, Aerospace series — Elements of electrical and optical connection — Test methods —
Part 610: Optical elements — Effectiveness of cable attachment — Cable pulling
EN 2591-611, Aerospace series — Elements of electrical and optical connection — Test methods —
Part 611: Optical elements — Effectiveness of cable attachment — Cable torsion
EN 2591-612, Aerospace series — Elements of electrical and optical connection — Test methods —
Part 612: Optical elements — Effectiveness of cable attachment — Cable axial compression
EN 2591-613, Aerospace series — Elements of electrical and optical connection — Test methods —
Part 613: Optical elements — Impact test

Published as ASD-STAN prEN at the date of publication of this document, available at:
https://www.asd-stan.org/.
EN 2591-617, Aerospace series — Elements of electrical and optical connection — Test methods —
Part 617: Optical elements — Temperature cycling
EN 2591-6301, Aerospace series — Elements of electrical and optical connection — Test methods —
Part 6301: Optical elements — Endurance at temperature
EN 2591-6305, Aerospace series — Elements of electrical and optical connection — Test methods —
Part 6305: Optical elements — Rapid change of temperature
EN 2591-6307, Aerospace series — Elements
...