EN 61300-3-11:1997

Overview

EN 61300-3-11:1997, published by the CLC (European Committee for Electrotechnical Standardization), defines a standardized test method for measuring the engagement and separation forces of fibre optic interconnecting devices and passive components. This part of the IEC 61300 series focuses specifically on basic test and measurement procedures to assess the forces or torques required to fully couple or uncouple an optical connector set. Accurate measurement of these mechanical forces ensures reliable connections in fibre optic systems, critical for maintaining signal integrity and system performance.

Key Topics

• Purpose
  To measure the force or torque needed to mate (engage) or unmate (separate) fibre optic connectors, covering various coupling mechanisms such as twist and push-pull types.

• Scope
  Applies to optical connector sets in fibre optic interconnecting devices and passive components, essential for ensuring mechanical compatibility and operational reliability.

• Test Apparatus

  • Holding fixtures: Designed to hold connector components securely without influencing force or torque measurements and maintain proper alignment during tests.
  • Force or torque generator: Provides a controlled, smooth application of force or torque throughout the coupling or uncoupling process.
  • Measuring instrument: Continuously records the force or torque applied during the entire engagement and separation cycle.

• Test Procedure

  • Precondition specimen as required to simulate operational conditions.
  • Visually inspect connector components when mounted in holding fixtures.
  • Apply and measure force/torque for mating over a minimum of 3 seconds.
  • Apply and measure force/torque for unmating over a minimum of 3 seconds.

• Specification Details
  Includes requirements for preconditioning, allowable engagement and separation forces or torques, and any deviations from the standardized measuring procedures.

Applications

• Quality Assurance:
  EN 61300-3-11:1997 is critical for manufacturers and testers of fibre optic interconnection devices, providing a repeatable method to verify that connectors meet mechanical engagement and separation criteria, ensuring consistent and reliable performance.

• Connector Design Validation:
  Designers use this standard to assess whether new connector models meet force and torque requirements for proper mating and unmating, helping avoid damage during operation and improving user handling experience.

• Field Testing and Maintenance:
  Service technicians can apply the procedures to ensure installed fibre optic connectors remain within specified mechanical tolerances, aiding in preventative maintenance and fault diagnosis.

• Standard Compliance:
  Compliance with EN 61300-3-11 supports interoperability and international harmonization by aligning with IEC 61300-3-11:1995, facilitating acceptance in global markets.

Related Standards

• IEC 61300 Series:
  EN 61300-3-11 is part of the IEC 61300 family focused on basic test and measurement procedures for fibre optic interconnecting devices and passive components:

  • Part 1: General and guidance
  • Part 2: Tests
  • Part 3: Examinations and measurements (including engagement and separation forces)

• Fibre Optic Connector Standards:
  Connectors adhering to EN 61300-3-11 testing are often also compliant with other IEC connector performance standards, ensuring comprehensive mechanical and optical evaluation.

• ISO/IEC Standards:
  Coordination with ISO standards ensures compatibility with broader international frameworks for connectors and optical cables.

By standardizing the measurement of engagement and separation forces, EN 61300-3-11:1997 plays a vital role in guaranteeing mechanical reliability and ease of use in fibre optic interconnecting technology - key to sustained network performance and user confidence in fibre optic communications.