SIST EN 2591-707:2004

Aerospace series - Elements of electrical and optical connection - Test methods - Part 707: Electrical elements - Measurement of characteristic impedance of a bus or a stub terminator

This standard specifies a method of measuring the characteristic impedance of:
-   a permanent bus terminator;
-   a removable bus or stub terminator.
It shall be used together with EN 2591-100.

Luft- und Raumfahrt - Elektrische und optische Verbindungselemente - Prüfverfahren - Teil 707: Elektrische Elemente - Messung des Wellenwiderstands eines Bus- oder Stichleitungsabschlusses

Diese Norm legt ein Verfahren zum Messen des Wellenwiderstandes
¾ eines nichtlösbaren Busabschlusses,
¾ eines lösbaren Bus- oder Stichleitungsabschlusses
fest.
Sie ist in Verbindung mit EN 2591-100 anzuwenden.

Série aérospatiale - Organes de connexion électrique et optique - Méthodes d'essais - Partie 707 : Organes électriques - Mesure de l'impédance caractéristique d'un bus ou d'une terminaison de dérivation

La présente norme spécifie une méthode de mesure de l'impédance caractéristique :
-   d'une terminaison de bus fixe ;
-   d'une terminaison de bus ou de dérivation amovible.
Elle doit être utilisée conjointement avec EN 2591-100.

Aerospace series - Elements of electrical and optical connection - Test methods - Part 707: Electrical elements - Measurement of characteristic impedance of a bus or a stub terminator

General Information

• Status: Published
• Publication Date: 30-Apr-2004
• ICS: 49.060 - Aerospace electric equipment and systems
• Technical Committee: I08 - Imaginarni 08
• Current Stage: 6060 - National Implementation/Publication (Adopted Project)
• Start Date: 01-May-2004
• Due Date: 01-May-2004
• Completion Date: 01-May-2004
• Ref Project: EN 2591-707:2001 - Aerospace series - Elements of electrical and optical connection - Test methods - Part 707: Electrical elements - Measurement of characteristic impedance of a bus or a stub terminator

Overview

SIST EN 2591-707:2004 is a European aerospace standard developed by CEN that specifies a test method for measuring the characteristic impedance of bus or stub terminators used in electrical connections. This standard is part of the aerospace series on elements of electrical and optical connections, focusing specifically on electrical elements. It ensures reliable impedance measurement crucial for the integrity and performance of aerospace electrical systems. The use of this standard is mandated alongside EN 2591-100, which covers general test methods for these components.

Key Topics

• Scope of Measurement
  The standard applies to:

  • Permanent bus terminators
  • Removable bus or stub terminators

• Measurement Methodology

  • Use of an impedance meter to measure the characteristic impedance (Z0)
  • Sinusoidal test signal with frequency ranging from 75 kHz to 1 MHz
  • Test signal amplitude of 0.3 V r.m.s.

• Preparation of Test Specimens

  • Permanent terminators must be wired according to product-specific standards
  • Removable terminators are tested in their shuttered connector state as defined by the product standard
  • Test conditions such as impedance value and temperature should be specified

• Compliance Criteria

  • Measured impedance must match the technical specification for performance validation

• Normative References

  • EN 2591-100: Aerospace series – Elements of electrical and optical connection – Test methods – Part 100: General, used in conjunction with EN 2591-707

Applications

SIST EN 2591-707:2004 is essential in aerospace electrical engineering for ensuring the electrical performance and reliability of connectors and bus terminations. Its practical applications include:

• Aerospace Electrical Systems
  Measurement of bus terminator impedance prevents signal reflections and interference in avionics wiring harnesses.

• Quality Assurance in Manufacturing
  Manufacturers utilize this standard to verify that bus terminators conform to design specifications, ensuring dependable connections in aircraft systems.

• Maintenance and Testing
  Aerospace maintenance teams apply this testing method to diagnose and troubleshoot terminator integrity, avoiding potential communication failures or signal degradation.

• Design and Development
  Engineers use impedance measurement data to refine connector designs and improve electromagnetic compatibility (EMC) within aerospace equipment.

Related Standards

• EN 2591-100 – Defines the general test methods applicable across electrical and optical connection elements in aerospace, serving as foundational guidance when applying EN 2591-707.

• AECMA Aerospace Standards – EN 2591-707 was prepared under the guidance of the European Association of Aerospace Manufacturers (AECMA), which issues various related aerospace electrical standards.

• Other EN 2591 Series Parts – Cover additional test methods and specifications for electrical and optical connection elements, forming a comprehensive framework for aerospace component testing.

Summary

SIST EN 2591-707:2004 provides a standardized, precise method for measuring the characteristic impedance of bus and stub terminators in aerospace electrical systems. By adhering to this standard, manufacturers and engineers ensure optimal connector performance and system reliability, essential for the safety and efficiency of modern aircraft. Its integration with EN 2591-100 makes it a critical part of aerospace test protocols, contributing to the highest standards in electrical connection technology.

Keywords: characteristic impedance measurement, aerospace electrical connectors, bus terminator testing, EN 2591-707, aerospace standards, impedance meter, electrical connection elements, test methods, avionics connectivity, aerospace quality assurance

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 707: Electrical elements - Measurement of characteristic impedance of a bus or a stub terminatorLuft- und Raumfahrt - Elektrische und optische Verbindungselemente - Prüfverfahren - Teil 707: Elektrische Elemente - Messung des Wellenwiderstands eines Bus- oder StichleitungsabschlussesSérie aérospatiale - Organes de connexion électrique et optique - Méthodes d'essais - Partie 707 : Organes électriques - Mesure de l'impédance caractéristique d'un bus ou d'une terminaison de dérivationAerospace series - Elements of electrical and optical connection - Test methods - Part 707: Electrical elements - Measurement of characteristic impedance of a bus or a stub terminator49.060Aerospace electric equipment and systemsICS:Ta slovenski standard je istoveten z:EN 2591-707:2001SIST EN 2591-707:2004en01-maj-2004SIST EN 2591-707:2004SLOVENSKI
STANDARD
EUROPEAN STANDARDNORME EUROPÉENNEEUROPÄISCHE NORMEN 2591-707November 2001ICS 49.060English versionAerospace series - Elements of electrical and optical connection- Test methods - Part 707: Electrical elements - Measurement ofcharacteristic impedance of a bus or a stub terminatorSérie aérospatiale - Organes de connexion électrique etoptique - Méthodes d'essais - Partie 707: Organesélectriques - Mesure de l'impédance caractéristique d'unbus ou d'une terminaison de dérivationLuft- und Raumfahrt - Elektrische und optischeVerbindungselemente - Prüfverfahren - Teil 707:Elektrische Elemente - Messung des Wellenwiderstandseines Bus- oder StichleitungsabschlussesThis European Standard was approved by CEN on 4 July 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 NORMALISATIONEUROPÄ
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