Is it good to shielded the network cable?

The shielded Network Cable is mainly for the environment with strong interference. The interference environment will cause the network cable transmission signal to be intermittent or even interrupted, and the signal cannot be transmitted normally. The use of shielded network cables can resist interference, maintain normal transmission, and have good confidentiality. The shielding structure of shielded wiring has inherent advantages in reducing mutual interference between cables. It can not only shield external electromagnetic signals, but also aluminum foil The electromagnetic leakage of the cable itself is blocked, and interference signals will not be emitted to affect the work of other cables, which can prevent information from being eavesdropped on
What is the role of shielding?
F/UTP network cable
The shielding structure of the F/UTP network cable is to wrap a layer of aluminum foil shielding outside the four pairs of the data network cable, and the shielding of this layer will be reduced to the greatest extent:
The interference signal emitted by this network cable during signal transmission affects adjacent data network cables (for example: adjacent data network cables in the same bundle of network cables)
The influence of interference signals from other data network cables or other interference sources on this network cable.
For a high-quality data transmission system, these two effects cannot be underestimated. If the external interference signal is strong enough, it will overlap with the normal transmission signal, resulting in reduced transmission performance and even the entire system cannot work normally.
S/FTP network cable
The S/FTP network cable structure has a layer of woven aluminum foil shielding for the general package, and a layer of aluminum foil shielding outside each pair of twisted pairs to protect the transmission signal from mutual interference, so the near-end crosstalk attenuation (NEXT) performance is significant Promote. Better NEXT performance means higher signal-to-noise ratio and better transmission quality and faster system output. The excellent NEXT performance of the S/FTP shielded network cable is unmatched by other structured network cables (such as unshielded U/UTP). Therefore, ISO11801 only specifies Cat.7 (600MHz) and Cat.7A (1000MHz). S/FTP structure of the network cable, U/UTP can not meet.