EN 2591-609:2005
(Main)Aerospace series - Elements of electrical and optical connection - Test methods - Part 609: Optical elements - Effectiveness of cable attachment - Cable cyclic flexing
Aerospace series - Elements of electrical and optical connection - Test methods - Part 609: Optical elements - Effectiveness of cable attachment - Cable cyclic flexing
This standard specifies three methods of checking the effectiveness of cable attachment in the cyclic flexing mode for optical connection elements (including permanent connections) and fibre optic couplers.
It shall be used together with EN 2591-100.
Luft- und Raumfahrt - Elektrische und optische Verbindungselemente - Prüfverfahren - Teil 609: Optische Elemente - Wirksamkeit der Leitungsbefestigung - Zyclische Flexibilität
Diese Norm legt drei Verfahren zum Nachweis der Wirksamkeit der Leitungsbefestigung von optischen
Verbindungselementen (einschließlich dauerhafter Verbindungen) und LWL-Kopplern bei zyklischer Biegebeanspruchung fest.
Sie ist in Verbindung mit EN 2591 100 anzuwenden.
Série aérospatiale - Organes de connexion électrique et optique - Méthodes d'essais - Partie 609 : Organes optiques - Efficacité de l'attache du câble - Flexion cyclique du câble
Aeronavtika – Elementi električnih in optičnih povezav – Preskusne metode – 609. del: Optični elementi – Učinkovitost kabelskih priključkov – Ciklična fleksibilnost kabla
General Information
- Status
- Published
- Publication Date
- 25-Oct-2005
- Withdrawal Date
- 29-Apr-2006
- Technical Committee
- ASD-STAN - Aerospace
- Drafting Committee
- ASD-STAN/D 2 - Electrical
- Current Stage
- 6060 - Definitive text made available (DAV) - Publishing
- Start Date
- 26-Oct-2005
- Completion Date
- 26-Oct-2005
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 2591-609:2005 is a CEN/AECMA aerospace test standard that defines procedures for assessing the effectiveness of cable attachment under cyclic flexing for optical connection elements, including permanent connections and fibre-optic couplers. It is intended to be used together with EN 2591-100 (General) and complements optical performance tests such as insertion loss and attenuation variation.
Key topics and technical requirements
- Three test methods (A, B, C): The standard specifies Method A (rotational flexing with free-running cable), Method B (rotational flexing under tensile force), and Method C (pendulum flexing with defined pendulum length and weight).
- Default cycle count: 100 cycles, unless the product specification cites a different number.
- Bend radius and dimensions: Minimum admissible radius R = 6 × cable diameter (but not less than 20 mm). Dimension L1 = 3 × cable diameter (but not less than 20 mm).
- Method-specific details:
- Method A: Rotate the specimen 180° and back to define one cycle; cable runs freely in a guide; monitor attenuation variation throughout the test (see EN 2591-602).
- Method B: Mount plug or receptacle, apply specified tensile force, rotate the element continuously at 10–20 rpm; apparatus must maintain minimum bend radius.
- Method C: Use a pendulum flex (90°, −180°, 90°) with a tensile weight; record optical readings in the rest (vertical) position every five cycles.
- Measurements and pass/fail checks: Visual examination (EN 2591-6101) and insertion loss checks (EN 2591-601). During Method B the cable must not become dislodged; attenuation variation must remain within product-standard limits.
Practical applications and users
- Who uses this standard: aerospace manufacturers, connector and cable designers, qualification and test laboratories, quality assurance teams, and procurement engineers specifying connector reliability.
- When to use it: during product qualification, design validation, supplier acceptance testing, and failure investigation to verify that cable attachment and strain relief for optical connectors withstand repeated flexing.
- Why it matters: ensures long-term optical performance and mechanical retention of fibre connections in vibration, harness routing, and maintenance scenarios typical of aerospace environments.
Related standards
- EN 2591-100 - Aerospace series: Test methods - Part 100: General
- EN 2591-601 - Optical elements: Insertion loss
- EN 2591-602 - Variation of attenuation and optical discontinuity
- EN 2591-6101 - Optical elements: Visual examination
Keywords: EN 2591-609:2005, aerospace standard, optical elements, cable cyclic flexing, cable attachment test, fibre optic coupler testing, insertion loss, attenuation variation.
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Frequently Asked Questions
EN 2591-609:2005 is a standard published by the European Committee for Standardization (CEN). Its full title is "Aerospace series - Elements of electrical and optical connection - Test methods - Part 609: Optical elements - Effectiveness of cable attachment - Cable cyclic flexing". This standard covers: This standard specifies three methods of checking the effectiveness of cable attachment in the cyclic flexing mode for optical connection elements (including permanent connections) and fibre optic couplers. It shall be used together with EN 2591-100.
This standard specifies three methods of checking the effectiveness of cable attachment in the cyclic flexing mode for optical connection elements (including permanent connections) and fibre optic couplers. It shall be used together with EN 2591-100.
EN 2591-609:2005 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 2591-609:2005 has the following relationships with other standards: It is inter standard links to EN 2591-100:2024, EN 3155-056:2006, EN 3155-024:2006, EN 3155-076:2012, EN 4639-102:2007, EN 3155-075:2022, EN 3660-005:2023, EN 3155-071:2007, EN 3155-026:2019, EN 3155-058:2006, EN 3155-070:2019, EN 4869-001:2024, EN 3155-027:2019, EN 3155-025:2006, EN 4645-001:2010. Understanding these relationships helps ensure you are using the most current and applicable version of the standard.
EN 2591-609:2005 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)
SLOVENSKI STANDARD
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Aerospace series - Elements of electrical and optical connection - Test methods - Part
609: Optical elements - Effectiveness of cable attachment - Cable cyclic flexing
Luft- und Raumfahrt - Elektrische und optische Verbindungselemente - Prüfverfahren -
Teil 609: Optische Elemente - Wirksamkeit der Leitungsbefestigung - Zyclische
Flexibilität
Série aérospatiale - Organes de connexion électrique et optique - Méthodes d'essais -
Partie 609 : Organes optiques - Efficacité de l'attache du câble - Flexion cyclique du
câble
Ta slovenski standard je istoveten z: EN 2591-609:2005
ICS:
49.060
2003-01.Slovenski inštitut za standardizacijo. Razmnoževanje celote ali delov tega standarda ni dovoljeno.
EUROPEAN STANDARD
EN 2591-609
NORME EUROPÉENNE
EUROPÄISCHE NORM
October 2005
ICS 49.060
English Version
Aerospace series - Elements of electrical and optical connection
- Test methods - Part 609: Optical elements - Effectiveness of
cable attachment - Cable cyclic flexing
Série aérospatiale - Organes de connexion électrique et Luft- und Raumfahrt - Elektrische und optische
optique - Méthodes d'essais - Partie 609 : Organes Verbindungselemente - Prüfverfahren - Teil 609: Optische
optiques - Efficacité de l'attache du câble - Flexion cyclique Elemente - Wirksamkeit der Leitungsbefestigung -
du câble Zyclische Flexibilität
This European Standard was approved by CEN on 19 September 2005.
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 Central Secretariat 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 Central Secretariat has the same status as the official
versions.
CEN members are the national standards bodies of Austria, Belgium, Cyprus, Czech Republic, Denmark, Estonia, Finland, France,
Germany, Greece, Hungary, Iceland, Ireland, Italy, Latvia, Lithuania, Luxembourg, Malta, Netherlands, Norway, Poland, Portugal, Slovakia,
Slovenia, Spain, Sweden, Switzerland and United Kingdom.
EUROPEAN COMMITTEE FOR STANDARDIZATION
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© 2005 CEN All rights of exploitation in any form and by any means reserved Ref. No. EN 2591-609:2005: E
worldwide for CEN national Members.
Contents Page
Foreword .3
1 Scope.4
2 Normative references.4
3 Preparation of specimens.4
4 Apparatus.4
5 Methods.5
5.1 Method A procedure.5
5.2 Method A final measurements and requirements.5
5.3 Method B procedure.6
5.4 Method B final measurements and requirements.7
5.5 Method C procedure.7
5.6 Method C final measurements and requirements.8
Foreword
This European Standard (EN 2591-609:2005) has been prepared by the European Association of Aerospace
Manufacturers - Standardization (AECMA-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
AECMA, 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 April 2006, and conflicting national standards shall be withdrawn at the
latest by April 2006.
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
...
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