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结构：单股裸铜线，聚乙烯（HDPE）绝缘，两根绝缘导体对绞，聚氯乙烯、阻燃PVC或低烟无卤
导体：实芯铜导体，直径0.57mm
线对：四对，色谱为：蓝/蓝白、橙/橙白、绿/绿白、
棕/棕白
棕/棕白
缆芯：四芯绞合
护套：阻燃PVC或低烟无卤 外径 6.2mm
特性阻抗：250Ω
产品性能
护套：阻燃PVC或低烟无卤 外径 6.2mm
特性阻抗：250Ω
产品性能
|
频率
(MHz) |
特性阻抗
(ohm) |
回波损耗
(db) |
衰减
(db/100m) |
近端串音
(db/100m) |
等效远端串音
(db/100m) |
|
0.772
|
100±15
|
19.4
|
1.6
|
76.0
|
70.2
|
|
1.0
|
20.0
|
1.8
|
74.3
|
68.0
|
|
|
4.0
|
23.0
|
3.7
|
65.3
|
56.0
|
|
|
8.0
|
24.5
|
5.3
|
60.8
|
49.9
|
|
|
10.0
|
25.0
|
5.9
|
59.3
|
48.0
|
|
|
16.0
|
25.0
|
7.5
|
56.2
|
43.9
|
|
|
20.0
|
25.0
|
8.4
|
54.8
|
42.0
|
|
|
|
|
|
|
|
|
|
25.0
|
24.3
|
9.5
|
53.3
|
40.0
|
|
|
31.25
|
23.6
|
10.6
|
51.9
|
38.1
|
|
|
62.5
|
21.5
|
15.4
|
47.4
|
32.1
|
|
|
100.0
|
20.1
|
19.8
|
44.3
|
28.0
|
|
|
200.0
|
18.0
|
29
|
39.8
|
22.0
|
|
|
250.0
|
17.3
|
32.8
|
38.3
|
20.0
|