Multicore and symmetrical pair/quad cables for digital communications to be used in harsh environments—Part 1:Generic specification
IDT IEC 62012-1:2002
全国电线电缆标准化技术委员会
GB/T 21204的本部分规定了在严酷环境下使用时对绞或星绞多芯对称电缆的定义和试验方法，这种电缆用于数字通信系统，如综合业务数字网（ISDN）、局域网和数据通信系统。本部分是这类电缆的设计和试验的导则。
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