ÖVE/ÖNORM EN 61753-031-2:2015-09
Действует
Fibre optic interconnecting devices and passive components - Performance standard - Part 031-2: Non-connectorized single-mode 1×N and 2×N non-wavelength-selective branching devices for Category C - Controlled environment (IEC 61753-031-2:2014) (english version)