IEC 62496-4-1:2019

Overview

IEC 62496-4-1:2019 is an international standard published by the International Electrotechnical Commission (IEC) that specifies the interface dimensions for a terminated waveguide optical circuit board (OCB) assembly. This assembly uses single-row twelve-channel polymer waveguides connected via PMT (Polymer Multi-fiber Termination) connectors. The standard facilitates interoperability by defining precise mechanical and optical interface dimensions that enable the OCB assembly to interconnect with a terminated MT (Mechanical Transfer) ferrule connector, ensuring effective optical alignment and connectivity for fiber optic communication systems.

Key Topics

• Standard Interfaces for Optical Circuit Boards: The standard details the geometric and alignment specifications for a waveguide OCB assembly terminated with twelve polymer waveguides in a single row using a PMT connector.

• PMT Connector Specifications: Defines the structure and dimensions of a twelve-channel PMT connector body, including the components of the PMT assembly such as the cover and boot. The PMT connector matches the outer dimensions of the type MT connector (IEC 61754-5) and uses alignment pins plus a latching spring for secure mating.

• Waveguide OCB Details: Covers the layout and positioning of the twelve waveguide cores embedded on an optical circuit board, typically supported on a flexible substrate to accommodate physical conformity when connected to the MT connector.

• Interface Dimensions and Alignment Pins: Provides detailed diagrams and tabulated measurements specifying the exact spacing and alignment positions of twelve fiber cores, guide holes, and mechanical reference points crucial for precise optical coupling.

• Interconnection with MT Connector: Describes the mating process between the terminated waveguide OCB assembly and a standard MT ferrule, ensuring reliable optical performance through accurate alignment.

Applications

• Fiber Optic Communication Systems: Enables designers and manufacturers to produce compatible optical circuit boards for fiber optic networks, improving system integration and reducing connector misalignment issues.

• Data Centers and High-Speed Networks: Applicable for OCB assemblies in environments requiring high-density multi-channel optical interconnections, such as server farms and telecommunications infrastructure.

• Optoelectronics Manufacturing: Facilitates the development of compact and reliable optical packages where terminated waveguide assemblies need to interface seamlessly with standard connectors.

• Research and Development in Photonics: Provides a reference framework for engineers developing new polymer waveguide technologies and connector designs with standardized interfaces.

Related Standards

• IEC 61754-5 – Fiber Optic Connector Interfaces – Type MT Connector Family: Defines the connector family that the PMT connectors of IEC 62496-4-1 emulate in size and interconnection method.

• IEC 62496 Series – Optical Circuit Boards: Contains additional parts covering various aspects of optical circuit board design, materials, testing, and interface standards.

• Other Fiber Optic Interface Standards: Complementary standards that address broader fiber optic connectivity, alignment, and testing ensure compatibility and performance across global optical communication systems.

Keywords: interface dimensions for a terminated waveguide optical circuit board (OCB), polymer waveguide, PMT connector, twelve-channel optical assembly, MT ferrule interconnection, optical circuit board standards, IEC 62496-4-1, fiber optic connector interface, optical waveguide alignment, optoelectronics assembly design.