标准摘要
[中文适用范围]： IEC 61753 的这一部分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，以便被分类为满足 IEC 61753-1 附录 A 中定义的 U 类（非受控环境）要求。 1. [外文原描述]： Contains the minimum initial test and measurement requirements and severities for a fibre optic attenuator to meet the requirements of category U environments.
英文名称Fibre optic interconnecting devices and passive components performance standard - Part 052-3: Single-mode fibre, pigtailed-style fixed attenuators for category U - Uncontrolled environment