The impedance path not influenced the surroundings. For unshielded cable these fields directly effect the electrical transmission characteristics the twisted pairs.301 U
H
E Electric field Magnetic field
E
Figure 1
START 000 000 MHz
STOP 100.
Twisted Pair unshielded
CH1 IMPEDANZ Cor
lin MAG
10 REF 100 U
1: 133.06 dev: 3.49 500 MHz mean: 95.895 p-p: 74.7307 p-p: 17.199 375 MHz mean: 98.863 U
H
E H
E Electric field Magnetic field
Figure 2
Shield
START 000 000 MHz
STOP 100. Stable transmission characteristics (figure 4), usually indicated excellent Return Loss installed conditions, are the result.37 49.
Copper unscreened Copper Copper screened
With shielded data cable (foil and braid screen high quality, i. The electrical and magnetic fields close installed data cable are rarely uniform constant. Wire environment installed data cable (figure 1).98 43.
U-287
Informations
Accessories
Systems
Fibre optic
Communication technology
.69 dev: 12.Advantages high performance data cables
Sensitivity external electrical and magnetic influences
The electromagnetic field unshielded data cable not limited the immediate area between the wires. Uninet) the electromagnetic field contained within the overall shield.e. Therefore, major external influences have minimal effect the transmission performance the cable (figure 2). (figure 3). 000 000 MHz
Figure 3
Twisted Pair shielded
CH1 lin MAG REF 100 U
low frequency
high frequency
Cor
IMPEDANZ
1: 107. 000 000 MHz
Figure 4
Technical changes reserved
