UNE-EN IEC 62614-1:2020

This part of IEC 62614 describes the launch condition requirements used for measuring

multimode attenuation in passive components and in installed cable plants.

In this document, the fibre types that are addressed include category A1-OMx, where x = 2, 3,

4 and 5 (50 ¼m /125 ¼m), and A1-OM1 (62,5 ¼m /125 ¼m) multimode fibres, as specified in

IEC 60793-2-10. The nominal test wavelengths detailed are 850 nm and 1 300 nm. This

standard may be suitable for multimode attenuation measurements for other multimode

categories and/or other wavelengths, but the source condition for other categories and

wavelengths are not defined here.

The purpose of these requirements is as follows:

" to ensure consistency of field measurements when different types of test equipment are

used;

" to ensure consistency of factory measurements when different types of test equipment are

used;

" to ensure consistency of field measurements when compared with factory measurements.

This document describes launch condition requirements for optical attenuation using sources

with a controlled encircled flux (EF).