IEC 61935-2-21:20 21是一份空白详细规范，描述了符合ISO/IEC 11801-1中规定的6类布线要求的电线。本空白详细规范引用的ISO/IEC 11801和ISO/IEC 11801系列定义和规范目前由ISO/IEC 11801-1涵盖。 本文件旨在与IEC 61935-2、IEC 61156-1、IEC 61156-6、IEC 60603-7-4和IEC 60603-7-5结合使用。空白详细规范确定了描述数字通信传输特性高达250 MHz的电线的详细规范的布局和样式。基于空白详细规范的详细规范可以由国家组织、制造商或用户准备。 IEC 61935-2中详述了适用于软线的测试配置。

IEC 61935-2-21:2021 is a blank detail specification describing cords which are compliant with category 6 cabling requirements, as specified in ISO/IEC 11801-1. ISO/IEC 11801 and ISO/IEC 11801 series definitions and specifications referenced by this blank detail specification are currently covered by ISO/IEC 11801-1.
This document is intended to be used in conjunction with IEC 61935-2, IEC 61156-1, IEC 61156-6, IEC 60603-7-4 and IEC 60603-7-5. The blank detail specification determines the layout and style for detail specifications describing cords with transmission characteristics up to 250 MHz for digital communications. Detail specifications, based on the blank detail specification, can be prepared by a national organization, a manufacturer, or a user.
The test configuration applicable to cords is detailed in IEC 61935-2.