UNE-EN IEC 61280-1-4:2023 Fibre optic communication subsystem test procedures - Part 1-4: General communication subsystems - Light source encircled flux measurement method (Endorsed by Asociación Española de Normalización in April of 2023.)
2023UNE-EN IEC 61280-1-4:2023 Fibre optic communication subsystem test procedures - Part 1-4: General communication subsystems - Light source encircled flux measurement method (Endorsed by Asociación Española de Normalización in April of 2023.)