NF C93-909-052-3*NF EN 61753-052-3:2018 Fibre optic interconnecting devices and passive components - Performance standard - Part 052-3 : single-mode fibre non-connectorized fixed attenuator - Category U in uncontrolled environment
2018NF C93-909-052-3*NF EN 61753-052-3:2018 Fibre optic interconnecting devices and passive components - Performance standard - Part 052-3 : single-mode fibre non-connectorized fixed attenuator - Category U in uncontrolled environment