IEC/TR 62627-06:2014 which is a technical report, describes the results of mechanical design proving tests for a high density systems application, carried out using the nutation test according to IEC 61300-2-35, performed on reinforced fibre cable terminated with optical connectors. A tensile load is suggested for the design proving requirements to be used to ensure that connectors meet the mechanical design requirements of connectors for specific application. Key words: mechanical design proving tests for a high density systems application, nutation test, IEC 61300-2-35, reinforced fibre cable terminated with optical connectors