BS EN 61753-2-3:2001 光纤互连装置和无源部件.连接U级单模光纤的光纤连接器.U级无接连接1XN和2XN无波长选择分路器件.非受控环境
Fibre optic interconnecting devices and passive components performance standard - Fibre optic connectors terminated on single-mode fibre for category U. Non connectorised single mode 1xN and 2xN non-wavelength-selective branching devices for category U. U