IEC 60874-14-3:1997 PDF

Overview

IEC 60874-14-3:1997 is an International Electrotechnical Commission (IEC) detail specification for the SC simplex fibre optic adaptor designed for single‑mode fibre. Published in 1997, the standard defines mechanical dimensions, materials, performance limits and qualification/inspection procedures for SC adaptors used in datacom and telecom applications. It covers plug–adaptor–plug configurations with push–pull coupling and provides variant options for PC and APC interfaces.

Key topics and technical requirements

• Scope and configuration
  • Type: SC simplex adaptor for single‑mode fibre (plug‑adaptor‑plug, push‑pull coupling).
  • Intended for datacom applications (referenced to ISO/IEC 11801).
• Mechanical and dimensional control
  • Detailed mating‑face and housing dimensions (gauges and tolerances) to ensure interchangeability.
  • Gauge retention force requirement: 2.0 N to 5.9 N (measured with alignment gauge pins).
• Materials and variants
  • Housing: plastic or metal options.
  • Alignment sleeve materials: zirconia or phosphor bronze.
  • Colour coding: SMF (PC) - blue (RAL 5015); APC - green (RAL 6029).
  • Variant matrix provided (variants 1001–1008) covering SMF/OPC/APC and material choices.
• Optical performance
  • Attenuation test method and limits: allowable attenuation **