IEC 61300-3-50:2025 RLV包含官方IEC国际标准及其红线版本。Redline版本仅提供英文版本，为您提供了一种快速简单的方法来比较IEC官方标准与其以前版本之间的所有变化。 IEC 61300-3-50:2025描述了测量多端口M × N(M个输入端口和N个输出端口)光纤空间交换机的端口之间的光信号串扰的过程。这第二版取消并取代了2013年出版的第一版。本版构成技术修订版。 与上一版相比，此版本包括以下重大技术变更: a)修订文件的结构。

IEC 61300-3-50:2025 RLV contains both the official IEC International Standard and its Redline version. The Redline version is available in English only and provides you with a quick and easy way to compare all the changes between the official IEC Standard and its previous edition.

IEC 61300-3-50:2025 describes the procedure to measure the crosstalk of optical signals between the ports of a multiport M x N (M input ports and N output ports) fibre optic spatial switch. This second edition cancels and replaces the first edition published in 2013. This edition constitutes a technical revision.
This edition includes the following significant technical changes with respect to the previous edition:
a) revising structure of the document.