IEC 61754-9:1996

Overview

IEC 61754-9:1996 is an international standard published by the International Electrotechnical Commission (IEC) that specifies the interface dimensions for the Type DS family of fibre optic connectors. This standard establishes precise dimensions for both plug and jack connectors within the Type DS family, ensuring compatibility and reliable interconnection in optical communication systems. It targets backplane applications where plug-in connectivity of fibre optic cables to printed circuit boards is required. This standard supports industry-wide consistency, enabling interoperability and facilitating the development of standardized optical components.

Key Topics

• Scope and Purpose
  The standard defines the physical interface dimensions for connectors belonging to the Type DS family, making it a key reference for manufacturers and system designers working with fibre optic connectors.

• Type DS Connector Description
  The Type DS connector family features a single-position plug connector characterized by a cylindrical, spring-loaded ferrule with a nominal diameter of 2.5 mm. The optical alignment uses rigid holes or resilient sleeves integrated within the jack connector, providing precise and stable fiber alignment.

• Standard Interfaces Defined
  IEC 61754-9 specifies two principal interfaces:

  • Interface 9-1: Plug connector interface
  • Interface 9-2: Jack connector interface

• Dimensional Specifications
  Comprehensive tabulated dimensions are provided for both plug and jack interfaces, including ferrule diameters, chamfers, length tolerances, and alignment device grades. These precise specifications ensure physical and optical compatibility between interfacing components.

• Intermateability
  The plug (interface 9-1) and jack (interface 9-2) connectors are designed to mate seamlessly, enabling reliable physical contact for efficient optical transmission.

Applications

• Backplane Connectivity
  Type DS connectors are primarily used in plug-in backplane connections where fibre optic cables connect printed circuit boards to central backplanes. This is common in telecommunications and data communications equipment requiring high-density, modular optical interconnections.

• Optical Communication Systems
  Any system requiring standardized, repeatable fibre optic connections especially in industrial, telecommunications, or data center environments can rely on interfacing components that conform to IEC 61754-9.

• Interoperability in Manufacturing
  Equipment manufacturers use this standard to ensure that connectors produced by different vendors can intermate, reducing compatibility issues and supporting the broad adoption of fibre optic technology.

Related Standards

• IEC 61754 Series
  IEC 61754 is a multi-part series defining interface dimensions for different types of fibre optic connectors, such as SC, FC, and LC families. Part 9 specifically addresses the Type DS family within this series.

• IEC 86B Technical Committee Documents
  The development and maintenance of IEC 61754-9 fall under the responsibility of subcommittee 86B, focusing on fibre optic interconnecting devices and passive components, reinforcing alignment with industry best practices.

• International Electrotechnical Vocabulary (IEV)
  Terminology related to fibre optic connectors follows the vocabulary established in IEC 50, ensuring consistent use of definitions across IEC publications.

Keywords: IEC 61754-9, fibre optic connector interfaces, type DS connectors, standard interface dimensions, plug and jack connector, backplane connector standards, optical fiber alignment, fibre optic backplane connectivity, IEC fibre optic standards.