IEC 61156-9:2016
数字通信用多芯和对称对/四芯电缆“第9部分:传输特性高达 2 GHz 的信道用电缆”分规范(1.0 版)

Multicore and symmetrical pair/quad cables for digital communications – Part 9: Cables for channels with transmission characteristics up to 2 GHz – Sectional specification (Edition 1.0)


IEC 61156-9:2016


标准号
IEC 61156-9:2016
发布
2016年
发布单位
IEC - International Electrotechnical Commission
当前最新
IEC 61156-9:2016
 
 
适用范围
This part of IEC 61156 describes cables primarily intended for the fixed part of channels as defined in ISO/IEC 11801 and in ISO/IEC TR 11801-9901 which is planned to be included in the next edition of ISO/IEC 11801-1. It covers overall screened cables with screened (X/FTP) or unscreened (X/UTP) pairs@ where X stands for F@ S or SF@ as well as pair-screened cables without overall screen (U/FTP). The transmission characteristics of these cables are specified up to a frequency of 2 000 MHz and at a temperature of 20 ?? Two categories of cables are recognised: ? Category 8.1 for use in Class I according to ISO/IEC TR 11801-9901 ? Category 8.2 for use in Class II according to ISO/IEC TR 11801-9901 These cables are intended to be used for communication channels which use at least four pairs simultaneously. The cables covered by this International Standard are intended to operate with voltages and currents normally encountered in communication systems. While these cables are not intended to be used in conjunction with low impedance sources@ e.g. the electric power supplies of public utility mains@ they are intended to be used to support the delivery of low voltage remote powering applications such as IEEE 802.3af (Power over Ethernet) or further developments e.g. according to IEEE 802.3at or IEEE 802.3bt. More information on the capacity to support these applications according to the installation practices is given in IEC PAS 61156-1-4@ IEC TR 61156-1-6 and ISO/IEC TR 29125.

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