UTP六类非屏蔽电缆(频率)MHZ(特性抗阻)ohm(回波损耗)DBDB/100(衰减)mDB/1(近端串音)00mDB/10(等效远端串音)0m0.72219.41.676.070.21.020.01.874.368.04.023.03.765.356.08.024.05.360.849.910.025.05.959.348.016.025.07.556.243.920.025.08.454.842.025.024.39.553.340.031.2523.610.651.938.162.5121.515.447.432.110020.119.844.328.020018.029.039.822.025017.332.838.320.0产品特性：结构：单股裸铜线，聚乙烯(PE)绝缘，两根绝缘导线扭绞成对，聚乙烯或聚***或低烟无卤护套。)