IEC 60874-14-9:1999 PDF

Overview

IEC 60874-14-9:1999 is an IEC detail specification for the SC‑APC tuned 8° fibre‑optic connector terminated on single‑mode fibre type B1. Published as Part 14‑9 of the IEC 60874 series (first edition, 1999), it defines mechanical, optical and conformity requirements for the plug‑adapter‑plug coupling (push‑pull) style SC/APC connector with an 8° angled physical contact (APC) ferrule. This standard is intended for manufacturers, test laboratories and quality teams working with single‑mode fibre connectors and interconnect components.

Key topics and technical requirements

• Connector type and configuration: SC‑APC tuned 8°; plug‑adapter‑plug coupling; resilient sleeve alignment; butt optical coupling.
• Ferrule geometry and endface: 8° angled PC reference plane; ferrule endface radius and dome eccentricity limits; ferrule compression force specified (7.8 N to 11.8 N when ferrule compressed to defined dimension).
• Dimensional controls: Detailed plug and ferrule mating face dimensions with tolerances (examples: A = 2.4985–2.4995 mm); variant-specific plug diameters and ferrule materials.
• Optical performance:
  • Allowable attenuation: **