BS EN 61300-3-55. Fibre optic interconnecting devices and passive components. Basic test and measurement procedures. Part 3-55. Examinations and measurements. Polarisation extinction ratio and keying accuracy of polarisation maintaining, passive, optical components— 24 стр.
Fibre optic active components and devices - Package and interface standards - Part 1: General and guidance (IEC 62148-1:2017); German version EN IEC 62148-1:2018— 13 стр.