DANSK DSF/PREN IEC 63267-2-1 PDF

This part of IEC 63267 defines a set of prescribed conditions for an enhanced macro bend 50/125 µm, graded index multimode fibre optic connection that is maintained in order to satisfy the requirements of attenuation and return loss performance in a randomly mated pair of polished physically contacting (PC) fibres. An encircled flux (EF) compliant launch condition in accordance with IEC 61300-1, at an operational wavelength of 850 nm, is used for determination of performance grades, based on lateral fibre core offset, numerical aperture (NA) mismatch, and fibre core diameter (CD) variation. Attenuation and return loss performance grades are defined in IEC 63267-11.