IEC 61300-2-43:2022 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 61300-2-43:2022旨在根据回波损耗筛选光纤跳线或光纤尾纤的单模物理接触（PC）光纤连接器插头，从而确保当连接器插头在现场随机配对时，回波损耗最小。本文件旨在适用于圆柱形插芯连接器插头。这第三版取消并取代了2014年出版的第二版。本版构成技术修订版。与上一版相比，本版包括以下重大技术变更:增加了包含术语、定义和缩写术语的第3条。

IEC 61300-2-43:2022 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 61300-2-43: 2022 aims at screening single-mode physical contact (PC) optical fibre connector plugs of an optical fibre patch cord or an optical fibre pigtail in terms of return loss, thus ensuring minimum return loss when the connector plugs are randomly mated with each other in the field. This document is intended to apply to cylindrical ferrule connector plugs. This third edition cancels and replaces the second edition published in 2014. This edition constitutes a technical revision. This edition includes the following significant technical change with respect to the previous edition: addition of Clause 3 containing terms, definitions, and abbreviated terms.