Summary

This Supplement provides information on the background and specifications used in the development of optical fibre and cableITU-T Recommendations such as G.651, G.652, G.653, G.654, G.655, G.656 and the L series. It also contains information used in the development of test method Recommendations such as G.650.1 and G.650.2. Moreover, this Supplement maps ITU-T Recommendations to optical fibre and cable standards developed under IEC.