
|
结构尺寸 |
||||
|
项目 |
CAT 5 |
CAT 5e |
CAT 6 |
|
|
1内导体(mm) |
0.5 |
0.5 |
0.57 |
|
|
2绝缘体(mm) |
1.3 |
1.3 |
1.3 |
|
|
3护套(mm) |
6.3 |
6.3 |
7.5 |
|
|
电气性能 |
||||
|
特性阻抗(Ω) |
100±15 |
100±15 |
100±15 |
|
|
工作电容(pF/100m) |
5.6 |
5.6 |
5 |
|
|
内导体直流电阻(Ohm/100m) |
9.5 |
9.5 |
6.58 |
|
|
最大衰减(20℃)(dB/100m)Max |
频率(MHz) |
CAT 5 |
CAT 5e |
CAT 6 |
|
1 |
2.0 |
2.0 |
1.9 |
|
|
4 |
4.1 |
4.1 |
3.7 |
|
|
10 |
6.5 |
6.5 |
5.9 |
|
|
31.25 |
11.7 |
11.7 |
10.6 |
|
|
62.5 |
17.0 |
17.0 |
15.4 |
|
|
100 |
22.0 |
22.0 |
19.8 |
|
|
200 |
/ |
/ |
29.0 |
|
|
250 |
/ |
/ |
32.8 |
|
|
近端串音衰减(dB/100m) |
1 |
62 |
65 |
74 |
|
4 |
53 |
56 |
65 |
|
|
10 |
47 |
50 |
59 |
|
|
31.25 |
40 |
43 |
52 |
|
|
62.5 |
35 |
38 |
47 |
|
|
100 |
32 |
35 |
44 |
|
|
200 |
/ |
/ |
40 |
|
|
250 |
/ |
/ |
38 |
|
|
远端串音衰减(dB/100m) |
1 |
61 |
64 |
68 |
|
4 |
49 |
52 |
56 |
|
|
10 |
41 |
44 |
48 |
|
|
31.25 |
31 |
34 |
38 |
|
|
62.5 |
25 |
28 |
32 |
|
|
100 |
21 |
24 |
28 |
|
|
200 |
/ |
/ |
22 |
|
|
250 |
/ |
/ |
20 |
|
|
回波损耗(dB/100m) |
1 |
23 |
20 |
20 |
|
4 |
23 |
23 |
23 |
|
|
10 |
23 |
25 |
25 |
|
|
31.25 |
21.1 |
24 |
24 |
|
|
62.5 |
18.1 |
22 |
22 |
|
|
100 |
16 |
20 |
20 |
|
|
200 |
/ |
/ |
18 |
|
|
250 |
/ |
/ |
17 |
|