EN 2591-223:2007

Overview

EN 2591-223:2007 is a European standard developed by CEN under the Aerospace series, focusing on test methods for measuring the characteristic impedance of coaxial connectors or contacts. This standard ensures precise testing protocols for both couples of connectors and couples of coaxial contacts, critical for maintaining signal integrity in aerospace electrical and optical connection elements.

In conjunction with EN 2591-100, which covers general test methods for aerospace electrical and optical connection components, EN 2591-223:2007 provides a focused methodology to assess the impedance characteristics essential for high-frequency aerospace applications.

Key Topics

• Scope of Measurement
  The standard applies to measuring the characteristic impedance of:

  • Couples of coaxial connectors
  • Couples of coaxial contacts

• Specimen Preparation

  • Each contact or connector is wired using the shortest possible coaxial cable length conforming to EN 4604-002.
  • The coaxial cable must have impedance closely matching the product standard.
  • One end of the coaxial cable is connected to a load resistor equal to the cable impedance.
  • Contacts are fitted into dedicated connectors as specified in EN 3155-002 prior to testing.

• Measurement Apparatus

  • The test requires an impedance meter or reflectometer capable of generating sinusoidal test signals.
  • The frequency range used should align with the product’s standard requirements.

• Measurement Requirements

  • The characteristic impedance of the device under test must comply with the values specified in the relevant product standard to ensure reliable signal transmission.

• Details to Specify in Testing

  • Type of coaxial cable used
  • Manufacturer, type, and serial number of the impedance meter
  • Measurement frequency

Applications

EN 2591-223:2007 is specifically designed for aerospace industry professionals and manufacturers involved in:

• Validation and Quality Control
  Ensuring electrical and optical connectors meet stringent aerospace standards for impedance, minimizing signal loss and reflections in high-frequency environments.

• Connector Design and Development
  Providing consistent, repeatable methods to verify characteristic impedance during product development for aerospace connectors and contacts.

• Maintenance and Troubleshooting
  Applying standard test methods to assess the condition of coaxial connectors and contacts in operational aerospace systems to prevent communication failures.

• Supplier Compliance
  Assisting aerospace component suppliers to certify their products meet European aerospace standards, facilitating acceptance across international aerospace markets.

Related Standards

For full compliance and integrated testing processes, EN 2591-223:2007 should be used alongside the following relevant aerospace standards:

• EN 2591-100 – Aerospace series: General test methods for elements of electrical and optical connection.
• EN 3155-002 – Aerospace series: Electrical contacts in connection elements-lists and utilization guidelines.
• EN 4604-002 – Aerospace series: Coaxial cables used for signal transmission-general specifications.

These standards collectively support comprehensive quality assurance of electrical and optical connectors in aerospace applications, focusing on material, design, and testing methodologies.

Keywords: aerospace standard, characteristic impedance measurement, coaxial connector testing, aerospace connectors, electrical and optical connections, impedance meter, reflectometer, aerospace test methods, EN 2591-223, EN 2591-100, aerospace quality control, aerospace electrical connectors