SIST EN 4626-004:2008

Overview

SIST EN 4626-004:2008 is a European standard developed by CEN for the aerospace industry, focusing on optical rectangular connectors. Specifically, it defines the characteristics of the male adaptor for optical terminus in receptacle within the aerospace series of connectors. These connectors use a Quadrax cavity with a 2.5 mm diameter ferrule and are designed for operating temperatures ranging from -65 °C to 125 °C, depending on the cable used. The contacts are flush, ensuring optimal optical performance and durability.

This standard forms part 004 of a comprehensive series addressing various components related to optical connectors intended for use in rugged aerospace environments.

Key Topics

• Scope and Purpose
  SIST EN 4626-004:2008 specifies the mechanical, optical, and environmental requirements for the male adaptor component designed to fit into an optical receptacle. It ensures interoperability and reliability within aerospace applications.

• Design and Dimensions
  The standard includes precise dimensions and tolerances for the adaptor, expressed in millimeters, ensuring consistency across manufacturers and facilitating easy integration into rack and panel optical systems.

• Materials
  The adaptor body may be made from metallic or composite materials that comply with the product standard, focusing on durability and compatibility with aerospace-grade optical interfaces.

• Performance Characteristics
  The standard outlines essential optical, mechanical, and climatic performance criteria, referring to related product standards like EN 4626-101 for optical contact assemblies, ensuring stable operation across a temperature range of -65 °C to 125 °C.

• Designation and Identification
  EN 4626-004 provides a clear designation system for identifying the standard-compliant male adaptor, facilitating traceability and equipment standardization.

Applications

• Aerospace Connectivity
  This adaptor is critical in aerospace electrical systems where reliable, high-performance optical data transmission is required under extreme environmental conditions such as wide temperature fluctuations and mechanical stress.

• Rack and Panel Mounting
  Designed for rack and panel configurations, the adaptor supports modular optical interconnects used in avionic systems, satellites, and high-reliability communication equipment.

• Optical Data Transmission
  Suitable for high-speed optical links in aircraft and spacecraft, where minimizing signal loss and maintaining connection integrity under challenging operational conditions is paramount.

• Military and Defence Systems
  The standard and its components are often integrated into defence communication platforms where compliance with aerospace quality and performance standards is mandatory.

Related Standards

• EN 4626-001
  Technical specifications covering the overall optical rectangular multicontact connectors and their operating temperature requirements. It lays the foundation for physical and performance parameters relevant to EN 4626-004.

• EN 4626-101
  Defines the optical contact sub-assembly for plugs, detailing the characteristics of optical contacts that the adaptor interfaces with. This ensures complete system compatibility.

• ASD-STAN Aerospace Series Standards
  EN 4626-004 is part of a suite of standards under the Aerospace and Defence Industries Association of Europe (ASD-STAN), ensuring harmonized specifications for optical connectors used in harsh aerospace environments.

Why EN 4626-004 Matters

• Ensures Compatibility and Interchangeability
  By adhering to this standard, manufacturers and aerospace system integrators achieve seamless integration between optical components, reducing compatibility issues.

• Optimizes Operational Reliability
  The specification of temperature ranges and material requirements supports long-term performance, resilience to extreme temperatures, and mechanical robustness essential for aerospace applications.

• Supports Regulatory Compliance
  Alignment with CEN standards facilitates regulatory approval and market acceptance across European aerospace sectors and international partners.

Optimizing your aerospace optical connectivity solutions with SIST EN 4626-004:2008 ensures adherence to stringent aerospace quality standards, promoting enhanced performance, durability, and interchangeability of critical optical adaptors. This standard is indispensable for engineers and manufacturers designing optical rack and panel connectors for use in demanding temperature environments.