Fibre optic interconnecting devices and passive components - Performance standard - Part 052-3: Single mode fibre pigtail style fixed attenuator for category U - Uncontrolled environment (IEC 86B/3421/CD:2012)
Fibre optic interconnecting devices and passive components - Performance standard - Part 052-3: Single-mode fibre non-connectorized fixed attenuator - Category U in uncontrolled environment (IEC 61753-052-3:2016); German version EN 61753-052-3:2016— 16 стр.
