IEC 61753-071-02:20 20+AMD1:2024 CSV包含非连接器单模光纤1 × 2和2 × 2空间交换机需要满足的最低初始测试和测量要求以及严重性，以便被归类为满足IEC 61753-1:20 18附录A中定义的C类受控环境的要求。第一版取消并取代了2014年发布的IEC 61753-071-2。本版构成技术修订版。此版本包括以下关于以下方面的重大技术更改 IEC 61753-071-2:20 14。 a)增加了重复性和开关耐久性的性能要求； b)删除方向性的性能要求； c)删除操作冲击测试； d)切换时间性能要求的变化； e)改变高光功率测试条件； f)试验条件与IEC 61753-1:20 18的协调。

IEC 61753-071-02:2020+AMD1:2024 CSV contains the minimum initial test and measurement requirements and severities which non-connectorized single-mode fibre optic 1 × 2 and 2 × 2 spatial switches need to satisfy in order to be categorized as meeting the requirements of category C – controlled environments, as defined in Annex A of IEC 61753-1:2018. This first edition cancels and replaces IEC 61753-071-2 published in 2014. This edition constitutes a technical revision. This edition includes the following significant technical changes with respect to
IEC 61753-071-2:2014.
a) addition of performance requirements of repeatability and switching durability;
b) deleting of performance requirements of directivity;
c) deleting of test of operational shock;
d) change of performance requirements of switching time;
e) change of test condition of high optical power;
f) harmonization of the test conditions with IEC 61753-1:2018.