DIN EN IEC 63267-1:2024-02

This part of IEC 63267 covers multimode fibre optic connection interfaces with enhanced macro bend loss and a 50 µm core diameter. It includes references, document structure details, definitions, and standardised optical connection grades. The grades are based on random mated connections between two optical connector populations according to prescribed characteristics including the core diameter and numerical aperture mismatches. The document describes the rules under which an optical interface is created. It also defines standardised test methods where appropriate. There are no restrictions on the scope of the document. This document increases investment security for manufacturers and users through its application and provides test laboratories and manufacturers with defined specifications for testing and ensures compatibility across manufacturer boundaries.