IEC TR 62368-2:20 19作为IEC TR 62368-2:20 19 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 TR 62368-2:20 19提供了与IEC 62368-1相关的解释性信息。仅包括那些被认为需要进一步背景参考信息或对其内容的解释以使读者受益的子条款。因此，并非所有编号的子条款都被引用。除非另有说明，所有引用均指IEC 62368-1:20 18中的条款、子条款、附件、图或表。第三版更新了2014年发布的IEC 62368-2第二版，以考虑IEC 62368-1:20 14前言中确定的对IEC 62368-1:20 14所做的更改。本技术报告仅供参考。如果IEC 62368-1和IEC TR 62368-2之间存在冲突，则IEC 62368-1中的要求优先于本技术报告。 关键词:音频/视频、保障措施、信息、通信

IEC TR 62368-2:2019 is available as IEC TR 62368-2:2019 RLV which contains the International Standard and its Redline version, showing all changes of the technical content compared to the previous edition.

IEC TR 62368-2:2019 provides explanatory information related to IEC 62368-1. Only those subclauses considered to need further background reference information or explanation of their content to benefit the reader are included. Therefore, not all numbered subclauses are cited. Unless otherwise noted, all references are to clauses, subclauses, annexes, figures or tables located in IEC 62368-1:2018. This third edition updates the second edition of IEC 62368-2 published in 2014 to take into account changes made to IEC 62368-1:2014 as identified in the Foreword of IEC 62368-1:2018. This Technical Report is informative only. In case of a conflict between IEC 62368-1 and IEC TR 62368-2, the requirements in IEC 62368-1 prevail over this Technical Report.

Key words: Audio/Video, Safeguards, Information, Communication