六类屏蔽4对双绞线
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4对6类250MHz FTP屏蔽数字通信用水平对绞对称电缆
材料说明Material instruction
传输特性Transmission Performance
频率 Frequency (MHz) |
衰减 Attenuation (Max) (dB/100m) |
近端串音衰减 NEXT (Min) (dB/100m) |
近端串音 衰减功率和 PSNEXT (Min) (dB/100m) |
远端串音衰减 ELFEXT (Min) (dB/100m) |
回波损耗 RL(Min) (dB) |
最小传播 相速度 Phase velocity (Min)(m/s) |
最大相时延 Phase delay (Max) (ns/100m) |
1 |
1.9 |
74 |
72 |
68 |
20 |
0.585c |
570 |
4 |
3.7 |
65 |
63 |
56 |
23 |
--- |
552 |
10 |
5.9 |
59 |
57 |
48 |
25 |
0.611c |
545 |
16 |
7.5 |
56 |
54 |
44 |
25 |
--- |
543 |
20 |
8.4 |
55 |
53 |
42 |
25 |
--- |
542 |
31.25 |
10.6 |
52 |
50 |
38 |
23.6 |
--- |
540 |
62.5 |
15.4 |
47 |
45 |
32 |
21.5 |
--- |
539 |
100 |
19.8 |
44 |
42 |
28 |
20.1 |
0.620c |
538 |
200 |
29 |
40 |
38 |
22 |
18 |
|
537 |
250 |
32.8 |
38 |
36 |
20 |
17.3 |
0.622c |
536 |
物理电气性能Physical Electrical Characteristics
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