IEC 61156-7 AMD 1-2012
数字通信用对绞/星绞多芯对称电缆.第7部分:传输特性低于1200 MHz的对绞对称电缆.数字和模拟通信电缆的分规范.修改件1
Multicore and symmetrical pair/quad cables for digital communications - Part 7: Symmetrical pair cables with transmission characteristics up to 1200 MHz; Sectional specification for digital and analog communication cables; Amendment 1
