Abstract

This article indicates the general approach of CCITT with respect to measuring methods and measuring equipments and gives the particular solution chosen for optical fibres measurements.

The particular approach adopted for optical fibres measurements consists in the adoption, as far as possible, for each defined characteristic of a corresponding “test reference method”. The article, on the basis of the contributions received, underlines the agreement reached on the definition of the various characteristics and on the corresponding measuring methods at the end of the present study period (1977-1980). Finally it indicates trends for the studies to be undertaken by CCITT during the next study period.