UNE-EN IEC 61755-6-2:2018

This part of the IEC 61755 series defines the dimensional limits of an optical interface for reference connectors necessary to meet specific requirements for fibre-to-fibre interconnection of non-angled polished reference connectors with cylindrical ferrules intended to be used for attenuation measurements in the field or factory.One grade of reference connector is defined in this document. The reference connector is terminated to traditional macro bend loss fibre only. The geometrical dimensions and tolerances of the specified reference connector have been developed primarily to limit the variation in measured attenuation between multiple sets of two reference connectors, and therefore to limit the variation in measured attenuation between randomly chosen reference connectors when mated with connectors in the field or factory.