EN 2591-601:2001
(Main)Aerospace series - Elements of electrical and optical connection - Test methods - Part 601: Optical elements - Insertion loss
Aerospace series - Elements of electrical and optical connection - Test methods - Part 601: Optical elements - Insertion loss
This standard specifies methods of measuring the insertion loss of optical connection elements (including permanent connections) and fibre optic couplers.
These methods are suitable for single and multi-channel devices and hybrid configurations.
It shall be used together with EN 2591-100.
Luft- und Raumfahrt - Elektrische und optische Verbindungselemente - Prüfverfahren - Teil 601: Optische Elemente - Einfügungsdämpfung
Diese Norm legt Verfahren zum Messen der Einfügungsdämpfung von optischen Verbindungselementen (einschließlich dauerhaften Verbindungen) und LWL Kopplern fest.
Diese Verfahren sind für Ein- und Mehrkanaleinrichtungen und für Hybridausführungen geeignet.
Sie ist in Verbindung mit EN 2591 100 anzuwenden.
Série aérospatiale - Organes de connexion électrique et optique - Méthodes d'essais - Partie 601 : Organes optiques - Pertes d'insertion
La présente norme prescrit les méthodes pour mesurer les pertes d'insertion d'organes de connexion optique (y compris les connexions permanentes) et de coupleurs à fibre optique.
Ces méthodes conviennent aux dispositifs à monovoie ou multivoies et aux configurations hybrides.
Elle doit être utilisée conjointement avec EN 2591-100.
Aerospace series - Elements of electrical and optical connection - Test methods - Part 601: Optical elements - Insertion loss
General Information
- Status
- Published
- Publication Date
- 20-Nov-2001
- Withdrawal Date
- 30-May-2002
- Technical Committee
- ASD-STAN - Aerospace
- Drafting Committee
- ASD-STAN/D 2 - Electrical
- Current Stage
- 9093 - Decision to confirm - Review Enquiry
- Start Date
- 01-Jun-2017
- Completion Date
- 21-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
- 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 2591-601:2001 is a CEN/AECMA aerospace test-method standard that specifies how to measure insertion loss of optical connection elements and fibre optic couplers used in aerospace systems. It covers single- and multi-channel devices, hybrid configurations and permanent connections. The standard defines measurement principles, required apparatus and five practical measurement methods and is intended to be used together with EN 2591-100 (general test requirements, fibre end preparation, launch/detector systems).
Key topics and technical requirements
- Measurement principle:
- Insertion loss is defined as the decrease in transmitted optical power caused by inserting the specimen, expressed in decibels (dB).
- Launch conditions, fibre preparation and interface methods are governed by EN 2591-100.
- Required apparatus:
- Light Launch System (LLS) and Light Detector System (LDS) as per EN 2591-100.
- Temporary joints, reference specimens and known reference adaptors/plugs where applicable.
- Specimen preparation:
- Fibre ends, cleaning, fixation to LLS/LDS and minimum bend radius requirements are specified.
- Test cable/fibre must meet product standard parameters.
- Measurement methods (summarized):
- Method 1 – Single measurement using a continuous fibre broken to insert the specimen.
- Method 2 – Pig‑tailed specimens using two temporary joints (sensitive to joint quality).
- Method 3 – Pig‑tailed with temporary joint designed to minimize fibre-parameter mismatch effects.
- Method 4 – Patch cords/terminated specimens measured against a reference specimen.
- Method 5 – Measurement of connector-set adaptors using reference plugs/adaptor to determine additional adaptor loss.
- Statistical assessment:
- Requires mean and standard deviation over multiple remating/measurements for connectors; remating procedures (rotations, keyed positions, patch‑cord orientation) are described.
- Requirements:
- Insertion loss and permissible standard deviation limits are specified in the relevant product standard (EN 2591-series product requirements).
Practical applications
- Ensures repeatable, comparable insertion loss measurements for aerospace-grade optical connectors, couplers, splices and patch cords.
- Used by:
- Aerospace component manufacturers and suppliers for product qualification.
- Test laboratories performing conformity and acceptance testing.
- Quality assurance, procurement and certification bodies verifying optical interconnect performance in avionics and aerospace systems.
- Typical uses: production testing of pigtails and patch cords, qualification of adaptors and connectors, comparative evaluation of coupler losses.
Related standards
- EN 2591-100 - Aerospace series - Test methods - Part 100: General (mandatory companion standard).
- AECMA prestandard context: EN 2591-601 was prepared under the European Association of Aerospace Manufacturers.
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Frequently Asked Questions
EN 2591-601:2001 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 601: Optical elements - Insertion loss". This standard covers: This standard specifies methods of measuring the insertion loss of optical connection elements (including permanent connections) and fibre optic couplers. These methods are suitable for single and multi-channel devices and hybrid configurations. It shall be used together with EN 2591-100.
This standard specifies methods of measuring the insertion loss of optical connection elements (including permanent connections) and fibre optic couplers. These methods are suitable for single and multi-channel devices and hybrid configurations. It shall be used together with EN 2591-100.
EN 2591-601:2001 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 2591-601:2001 has the following relationships with other standards: It is inter standard links to EN 2591-100:2024, EN 3155-083:2019, EN 2591-6323:2002, EN 3155-057:2006, EN 3155-059:2006, EN 3155-066:2006, EN 3155-001:2025, EN 3155-035:2012, EN 3155-077:2019, EN 3155-044:2019, EN 3155-016:2019, EN 3745-515:2012, EN 3155-061:2006, EN 3155-076:2019, EN 2591-614:2002. Understanding these relationships helps ensure you are using the most current and applicable version of the standard.
EN 2591-601:2001 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.Aerospace series - Elements of electrical and optical connection - Test methods - Part 601: Optical elements - Insertion lossLuft- und Raumfahrt - Elektrische und optische Verbindungselemente - Prüfverfahren - Teil 601: Optische Elemente - EinfügungsdämpfungSérie aérospatiale - Organes de connexion électrique et optique - Méthodes d'essais - Partie 601 : Organes optiques - Pertes d'insertionAerospace series - Elements of electrical and optical connection - Test methods - Part 601: Optical elements - Insertion loss49.060Aerospace electric equipment and systemsICS:Ta slovenski standard je istoveten z:EN 2591-601:2001SIST EN 2591-601:2004en01-maj-2004SIST EN 2591-601:2004SLOVENSKI
STANDARD
EUROPEAN STANDARDNORME EUROPÉENNEEUROPÄISCHE NORMEN 2591-601November 2001ICS 49.060English versionAerospace series - Elements of electrical and optical connection- Test methods - Part 601: Optical elements - Insertion lossSérie aérospatiale - Organes de connexion électrique etoptique - Méthodes d'essais - Partie 601: Organes optiques- Pertes d'insertionLuft- und Raumfahrt - Elektrische und optischeVerbindungselemente - Prüfverfahren - Teil 601: OptischeElemente - EinfügungsdämpfungThis European Standard was approved by CEN on 4 June 2001.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 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 Management Centre has the same status as the officialversions.CEN members are the national standards bodies of Austria, Belgium, Czech Republic, Denmark, Finland, France, Germany, Greece,Iceland, Ireland, Italy, Luxembourg, Netherlands, Norway, Portugal, Spain, Sweden, Switzerland and United Kingdom.EUROPEAN COMMITTEE FOR STANDARDIZATIONCOMITÉ EUROPÉEN DE NORMALISATIONEUROPÄISCHES KOMITEE FÜR NORMUNGManagement Centre: rue de Stassart, 36
B-1050 Brussels© 2001 CENAll rights of exploitation in any form and by any means reservedworldwide for CEN national Members.Ref. No. EN 2591-601:2001 ESIST EN 2591-601:2004
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