IEC 60794-2-31:2019 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 60794-2-31:2019提出了针对此类电缆的详细要求，以确保与ISO/IEC 11801系列国际标准《信息技术-客户场所通用布线》（第1至6部分）兼容。系列规范IEC 60794-2-30的要求适用于本文件涵盖的电缆。第4条中详述的特定要求定义了与IEC 60794-2-30要求或附加要求相关的特定选项。这第三版取消并取代了2012年出版的第二版。它构成技术修订。与上一版相比，此版本包括以下重大技术变更: a)纳入OM5电缆光纤性能类别； b)纳入OS1a电缆光纤性能类别； c)光缆性能类别OM1、OM2和OS1不再是规范性的，保留仅供参考。 关键词:光纤带状电缆

IEC 60794-2-31:2019 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 60794-2-31:2019 presents the detailed requirements specific to this type of cable to ensure compatibility with the series of International Standards ISO/IEC 11801, Information technology – Generic cabling for customer premises (Parts 1 to 6). The requirements of family specification IEC 60794-2-30 are applicable to cables covered by this document. The particular requirements detailed in Clause 4 define either a specific option in relation to the requirements of IEC 60794-2-30 or additional requirements. This third edition cancels and replaces the second edition published in 2012. It constitutes a technical revision. This edition includes the following significant technical changes with respect to the previous edition:
a) incorporation of the OM5 cabled fibre performance category;
b) incorporation of the OS1a cabled fibre performance category;
c) cabled fibre performance categories OM1, OM2 and OS1 are no longer normative, and are retained for information.
Keywords: optical fibre ribbon cables