GB/T 18015.5-2007
AbolishedMulticore and symmetrical pair/quad cables for digital communications - Part 5: Symmetrical pair/quad cables with transmission characteristics up to 600MHz - Horizontal floor wiring - Sectional specification
数字通信用对绞或星绞多芯对称电缆 第5部分:具有600MHz及以下传输特性的对绞或星绞对称电缆 水平层布线电缆 分规范