|
|
对数
No.of Pairs |
导线直径
Conductor
dimension
mm |
绝缘线径
Core
Dimension
mm |
结构
Construction |
屏蔽
Shielding |
护层直径
Nom O.D.
mm |
|
4 |
0.51 |
0.91 |
UTP 非屏蔽 |
- |
5.1 |
|
25 |
0.51 |
0.91 |
UTP 非屏蔽 |
- |
12.5 |
|
4 |
0.53 |
1.00 |
STP 屏蔽 |
铝箔 |
6.3 |
|
4 |
0.53 |
1.00 |
STP 屏蔽 |
铝箔+编织 |
6.3 |
|
电性能
Electrical Characteristis |
|
频率
Frequency
MHz |
衰减
max
Attenuation
dB/100m |
回波损耗
min
Echo Loss
dB |
近端串音
min
Next Worst Pair
dB |
远端串音
min
Worst Pair
dB/100m |
|
1 |
2.0 |
20.0 |
62 |
61 |
|
4 |
4.1 |
23.0 |
53 |
49 |
|
10 |
6.5 |
25.0 |
47 |
41 |
|
16 |
8.2 |
25.0 |
44 |
37 |
|
20 |
9.3 |
25.0 |
42 |
35 |
|
31.25 |
11.7 |
23.6 |
40 |
31 |
|
62.5 |
17.0 |
21.5 |
35 |
25 |
|
100 |
22.0 |
20.1 |
32 |
21 |
特性阻抗：Characteristic impedance 100±15Ω
关于5类电缆的标准：
ANSI/TIA/EIA-568A
IEC61156-1994
ISO/IEC 11801(2nd edition)
CENELEC EN50173(2nd edition)
ANSI/NEMA WC63.1-1996
YD/T838-1996
|
