IEC 62149-4:20 22作为IEC 62149-4:20 22 RLV提供，其中包含国际标准及其红线版本，显示了与上一版本相比技术内容的所有变化。IEC 62149-4:20 22定义了用于ISO/IEC/IEEE 8802-3千兆以太网应用的1 300 nm光纤收发器模块的性能规范。本文件包含产品性能要求的定义以及一系列测试和测量，其中提供了明确定义的条件、严重性和通过/失败标准。这些测试旨在“一次性”运行，以证明任何产品满足性能标准要求的能力。已证明满足性能标准所有要求的产品可被宣布为符合性能标准，但随后将由质量保证/质量一致性计划进行控制。这第三版取消并取代了2010年出版的第二版。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: -更新了规范性参考文献； -删除4.1中的“短期”条件； -表1中焊接温度的绝对限制等级被修改； -表4中的最大光输出功率（多模光纤）从？3.5 dBm到？3 dBm，使值与参考文档对齐； -在表7中增加注释，以阐明不合格产品不允许通过性能测试。

IEC 62149-4:2022 is available as IEC 62149-4:2022 RLV which contains the International Standard and its Redline version, showing all changes of the technical content compared to the previous edition.

IEC 62149-4:2022 defines performance specifications for 1 300 nm fibre optic transceiver modules used for the ISO/IEC/IEEE 8802-3 Gigabit Ethernet application. This document contains definitions for product performance requirements as well as a series of tests and measurements, for which clearly defined conditions, severities and pass/fail criteria are provided. The tests are intended to be run on a "once-off" basis to prove any product’s ability to satisfy the performance standard’s requirements. A product that has been shown to meet all the requirements of a performance standard can be declared as complying with the performance standard but will then be controlled by a quality assurance/quality conformance program. This third edition cancels and replaces the second edition published in 2010. This edition constitutes a technical revision. This edition includes the following significant technical changes with respect to the previous edition:
- the normative references are updated;
- the condition "for short periods" in 4.1 is removed;
- the absolute limiting rating for soldering temperature in Table 1 is modified;
- the maximal optical output power (multimode fibre) in Table 4 is increased from？3,5 dBm to？3 dBm, to align value with the referenced document;
- a note is added to Table 7 to clarify that out-of-specification products are not allowed to pass the performance tests.