DIN EN IEC 61300-3-21:2021-05
Fibre optic interconnecting devices and passive components - Basic test and measurement procedures - Part 3-21: Examinations and measurements - Switching time (IEC 61300-3-21:2019); German version EN IEC 61300-3-21:2019 / Note: DIN EN 61300-3-21 (2016-...