IEC 60874-19-1:2007

Overview

IEC 60874-19-1:2007 is an international standard developed by the International Electrotechnical Commission (IEC) that specifies requirements and quality assessment procedures for the SC-PC (floating duplex) fibre optic patch cord connectors terminated on multimode fibre types A1a and A1b. This standard is pivotal for manufacturers and users of fibre optic components, ensuring reliable performance, compatibility, and quality assurance in both commercial and industrial fibre optic communication systems.

This edition harmonizes with updated requirements from IEC 61753-1, the optical interface of IEC 61755-3-3, and the modal condition specified in IEC 61300-1. It forms part of the IEC Quality Assessment System for Electronic Components (IECQ), identifying products that meet rigorous international benchmarks.

Key Topics

• Connector Type and Configuration

  • Floating duplex SC-PC connectors
  • For multimode fibres type A1a and A1b
  • Plug-adaptor-plug configuration with push-pull coupling

• Performance and Quality Assessment

  • Insertion loss and return loss limits
  • Environmental and mechanical endurance tests (cold, dry heat, damp heat, impact, vibration, tensile strength)
  • Mating durability and mechanical integrity

• Dimensional and Material Specifications

  • Control dimensions and tolerances of connectors and ferrules
  • Application-specific variant options for different cable jacket diameters and ferrule materials
  • Recommended color coding for components

• Compliance and Testing Procedures

  • Visual examination and marking clarity
  • Detailed schedules for lot-by-lot inspection and periodic quality conformance
  • Laboratory test methods as prescribed by referenced standards (IEC 61300 series)

Applications

SC-PC floating duplex connectors specified by IEC 60874-19-1:2007 are widely used in:

• Telecommunications networks – Ensuring reliable connections between equipment in central offices and remote nodes.
• Data centers and LAN/WAN infrastructures – Providing high-quality, low-loss optical interconnections for large-scale networking.
• Customer premises cabling – Supporting information technology cabling systems such as those defined in ISO/IEC 11801.
• Industrial automation – Enabling robust data transmission in environments requiring high mechanical robustness and stable optical performance.

This standard supports system integrators, manufacturers, and end-users by providing clear requirements for the selection, testing, and deployment of fibre optic patch cords using SC-PC connectors.

Related Standards

Implementation of IEC 60874-19-1:2007 should be considered alongside the following key standards for optimal quality and interoperability:

• IEC 60874 Series: General requirements for fibre optic connectors and passive components.
• IEC 61753-1: General and guidance for performance standards of fibre optic interconnecting devices.
• IEC 61755-3-3: Optical interfaces for connectors with reference to SC-PC types.
• IEC 61300 Series: Comprehensive testing methods, including environmental, mechanical, and optical assessments.
• ISO/IEC 11801: Information technology – generic cabling for customer premises.

Practical Value

Adhering to IEC 60874-19-1:2007 ensures that fibre optic patch cords with SC-PC connectors deliver consistent optical performance, durability, and safety. This enhances network reliability, reduces downtime, and supports global interoperability in fibre optic communication systems, making it an essential benchmark for the fibre optics industry.

Keywords: IEC 60874-19-1, SC-PC connector, fibre optic patch cord, multimode fibre, connector standard, quality assessment, optical connectors, IEC standards, telecom cabling, data center cabling, fibre optic component testing.