NF C93-890-1*NF EN IEC 60869-1:2018 Fibre optic interconnecting devices and passive components - Fibre optic passive power control devices - Part 1 : generic specification
2018NF C93-890-1*NF EN IEC 60869-1:2018 Fibre optic interconnecting devices and passive components - Fibre optic passive power control devices - Part 1 : generic specification