标准摘要
[中文适用范围]： 包含光纤衰减器必须满足的最低初始测试和测量要求以及严格程度，才能被归类为满足单模光纤尾纤式连续可变衰减器设备的要求 [外文原描述]： Contains the minimum initial test and measurement requirements and severities which a fibre optic attenuator must satisfy in order to be categorised as meeting the requirements of single mode fibre pigtailed style continuously variable attenuator devices used in uncontrolled environments.
英文名称Fibre optic interconnecting devices and passive components performance standard - Part 053-3: Continuously variable attenuators for category U - Uncontrolled environment