IEC TR 62572-4:20 20 RLV包含官方IEC国际标准及其红线版本。Redline版本不是官方文档，它只有英文版本，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/TR 62572-4:20 20是一份技术报告，提供了插座式光收发器的光连接器端面清洁方法的指南。它包括有关处理插座式光收发器的详细信息、光收发器的内部结构、清洁工具和机器的信息、适用的清洁方法和清洁程序。插座式光收发器以及光纤跳线由光网络系统的操作员和维护人员处理。本文件可用作为光网络系统的操作人员和维护人员编制指导手册的指南。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: -增加关于多光纤连接器接口光收发器的术语和定义； -增加用于多光纤连接器接口型光收发器的清洁方法； -更新参考网站的URL。

IEC TR 62572-4:2020 RLV contains both the official IEC International Standard and its Redline version. The Redline version is not an official document, it 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/TR 62572-4:2020, which is a Technical Report, provides guidelines for optical connector end-face cleaning methods for receptacle style optical transceivers. It includes details about handling receptacle style optical transceivers, internal structures of optical transceivers, information on cleaning tools and machines, applicable cleaning methods, and cleaning procedures. Receptacle style optical transceivers as well as optical fibre patch cords are handled by operators and maintenance staff of optical network systems. This document can be used as a guideline to prepare instruction manuals for the operators and maintenance staff of optical network systems. 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:
- addition of terms and definitions on multifibre connector interface optical transceivers;
- addition of cleaning methods for multifibre connector interface type optical transceivers;
- updating URLs for reference websites.