IEC 62496-4:2011

Overview

IEC 62496-4:2011 is an international standard developed by the International Electrotechnical Commission (IEC) that focuses on the interface standards for Optical Circuit Boards (OCBs). This document provides essential general information, normative references, definitions, and guidance on creating and interpreting standard drawings related to OCB interfaces. It aims to establish uniformity in specifying sizes, locations, and coordinate systems for OCB features, which is critical for the precise alignment and integration of optical components within electrical and electronic systems.

Key Topics

• OCB Interfaces: Defines the sizes and relative locations of features on an Optical Circuit Board, including coordinates for alignment marks essential for accurate assembly and testing.

• Standard Drawing Interpretation: Provides rules for creating and understanding schematic and technical drawings that depict the interfaces and structural parameters of OCBs.

• Coordinate Systems for I/O Ports: Establishes the origin points and coordinate axes for input/output (I/O) ports of waveguide OCBs, supporting consistent measurement and positioning.

• Misalignment and Mirror Angles: Describes the measures for misalignment angles of I/O ports in both edge and surface types, as well as mirror angles, to assess and control the optical alignment and orientation within OCB assemblies.

• Dimensioning and Tolerance Systems: Details the dimensioning system, use of gauges, and tolerance grades ensuring the precise manufacturing and quality control of OCB bodies, ports, and tails, particularly for flexible fiber OCBs.

• Normative References: Integrates other critical standards such as IEC 60793-1-45, which covers measurement methods for optical fibers, facilitating compatibility and interoperability.

Applications

IEC 62496-4:2011 supports various practical applications in the design, manufacturing, and quality assurance of optical circuit boards, including:

• Optical Communication Systems: Ensures accurate interface standards for optical components interconnecting within networking equipment, improving signal integrity and performance.

• Photonic Integration: Facilitates the precise assembly of waveguides and optical fibers in integrated photonic devices used in telecom, data centers, and sensors.

• Quality Control and Testing: Provides clear guidelines on measurement and tolerance norms for manufacturing OCBs, enabling consistent quality and reducing fabrication errors.

• Product Development: Assists engineers and designers in following internationally recognized standards for OCB interface specifications, promoting interoperability and reducing development cycles.

• Standardized Documentation: Guides the creation of detailed and standardized drawings that promote clear communication between manufacturing, engineering, and certification entities.

Related Standards

• IEC 62496 Series: This part 4 document is one segment within the broader IEC 62496 series dedicated to optical circuit boards. Other parts cover specific aspects such as design and materials.

• IEC 60793-1-45: Focuses on measurement methods for optical fibers, particularly mode field diameter, supporting precise characterization of fibers used within OCBs.

• ISO/IEC Directives: The standard has been drafted adhering to the ISO/IEC directives for international standardization, ensuring alignment with global practices in technical documentation.

• IEC Electropedia: Serves as a complementary reference, offering comprehensive definitions of electrical and optical terms supporting correct interpretation of the standard's terminology.

Keywords: IEC 62496-4, Optical Circuit Boards, OCB interface standards, optical fiber alignment, waveguide OCB, misalignment angle, mirror angle, OCB coordinate systems, optical communication, OCB quality control, optical circuit board standard, IEC optical standards.