IEC 61076-2-107:2010

Overview

IEC 61076-2-107:2010 is an international standard published by the International Electrotechnical Commission (IEC) that specifies detailed requirements for circular hybrid connectors of the M12 type. These connectors are designed to integrate both electrical and fibre-optic contacts within a single screw-locking housing. The standard applies primarily to connectors used in industrial process measurement and control systems, providing reliable power transmission alongside optical data communication.

This standard addresses both fixed and free connectors, as well as adaptors, ensuring interoperability and performance consistency across applications. By defining product requirements including mechanical dimensions, electrical specifications, optical characteristics, and environmental resistances, IEC 61076-2-107:2010 plays a critical role in standardizing components that support hybrid connectivity solutions for industrial electronics.

Key Topics

• Connector Types and Styles
  The standard defines multiple styles of fixed connectors (e.g., female contacts with single hole mounting threads), free connectors (with locking nuts and male contacts), and adaptors to facilitate connection versatility. Each style is detailed with precise dimensional data to ensure compatibility and ease of integration.

• Hybrid Contact Integration
  A key feature is the combination of electrical contacts capable of power transmission and fibre-optic contacts for data communication within a single M12 connector body. This hybrid approach supports complex industrial applications requiring both power and high-speed communication lines.

• Screw Locking Mechanism
  The screw-locking system assures secure engagement between connectors and adaptors. This mechanism enhances mechanical stability in harsh industrial environments where vibration and mechanical stress are common.

• Electrical Characteristics
  Specifications include rated voltage and current-carrying capacity for electrical contacts, insulation resistance, contact resistance, and voltage proof testing. These parameters ensure safe and efficient power handling capabilities under specified environmental conditions.

• Optical Specifications
  The standard covers critical optical properties such as insertion loss, return loss, and ferrule end-face dimensions. These criteria guarantee optimal fibre-optic signal integrity and performance during installation and operation.

• Environmental and Mechanical Endurance
  IEC 61076-2-107 defines climatic categories and IP degrees of protection to assure operational reliability under varying temperature, moisture, and dust exposure. Mechanical endurance tests, including vibration resistance and insertion/withdrawal force requirements, validate durability in industrial settings.

• Testing and Compliance
  Detailed test schedules for mechanical, electrical, chemical resistivity, and connection method assessments are included. These rigorous tests certify that products meeting this standard will perform consistently and safely in their intended application environments.

Applications

• Industrial Process Measurement and Control
  The M12 circular hybrid connectors standardized by IEC 61076-2-107 are widely used to interconnect sensors, actuators, transmitters, and control systems requiring both power supply and optical communication. This streamlines wiring and reduces the need for multiple separate connectors.

• Automation Systems
  Hybrid M12 connectors are integral in factory automation, facilitating reliable data transmission and power delivery over compact, rugged interfaces that withstand industrial conditions.

• Transportation and Machinery
  Durable screw-locking M12 connectors ensure connection integrity in mobile equipment and heavy-duty machinery, supporting signal and power lines in vibration-prone environments.

• Communication Networks with Power
  Where fibre-optic data transmission and electrical power need to coexist in a single connector interface, these hybrid connectors provide a standardized solution for efficient cable management and system integration.

Related Standards

• IEC 61076 Series
  Covers general requirements and other detailed specifications for circular connectors with various contact types, montage styles, and locking mechanisms.

• IEC 61754 Series
  Defines fibre-optic connector interfaces complementing the optical contact requirements specified in this hybrid connector standard.

• ISO/IEC 11801
  Relates to generic cabling for customer premises including criteria impacting connector specifications for communication networks.

• IEC 60512 Series
  Describes testing procedures and performance verification for connectors in electronic equipment, which supports conformity assessment for standards like IEC 61076-2-107.

Keywords: IEC 61076-2-107, M12 circular connectors, hybrid connectors, fibre-optic contacts, electrical contacts, screw locking connectors, industrial connectors, process measurement connectors, power and data connectors, IEC standards for connectors.