BS EN 61753-121-3:2010
光纤互连装置和无源组件.性能标准.U类用带有单模光纤和圆形套圈连接器的单工和双工电线.不受控环境
Fibre optic interconnecting
devices and passive
components. Performance
standard.
Part 121-3: Simplex and duplex cords with
single-mode fibre and cylindrical ferrule
connectors for category U. Uncontrolled
environment