According to the functional direction of the
Network Cable and the structure of the network cable, the shielded network cable is divided into a single-layer network cable and a double-layer network
cable. The shielding structure of the single-shielded network cable is a layer of aluminum foil shielding
layer; the double shielding structure of aluminum foil layer + metal braided mesh. In terms of shielding function, double shielded network cable has stronger performance.
Shielded network cable, single-shielded network cable, double-shielded network cable
The role of shielded network cable:
In a strong electromagnetic interference environment, ensure the stable transmission of signals,
prevent external signals from interfering with cable transmission data, and prevent information
leakage and eavesdropping.
The shielding structure of the network cable is the distortion inside the cable, which can prevent it
from having innate advantages. It can reduce the radiation energy of large power equipment with
external interference. The wire material itself can prevent electromagnetic radiation from leaking,
eliminating the release of the wiring cable bundle when it is working. The signals influence each
other.
The network cable has strong performance and strong shielding effect, and the transmission speed is
doubled and stable, but the requirements for wiring are also extremely strict.
The requirement for the wiring of the shielded network system is that the type of high-quality line must be shielded, and the components of the shielded Internet system are composed of the same head,
routers, switches, etc. The failure of the network isolation system, with other system components and
cable shielding, becomes a source of obstructive signals in the entire local network.
The shielding function of the entire system equipment and cable grounding are the basic requirements
for shielded
Network Cable Wiring, and cable grounding is very important to the network wiring of
shielded network cables.
First, the building structure that needs to be wired has good low-line wiring conditions. We observe that the internal structure of the network cable can be shielded. This is the grounding wire of the copper cable, the grounding wire, and the shielded wire with good grounding will eventually interfere with the signal shielding and ensure the operation of the network system products.
The result of poor grounding:
The main reasons for poor grounding are large grounding resistance or uneven grounding power supply.
If the grounding is not good, noise will be generated, and the interruption layer of the fast transmission line will be shielded to produce a potential difference phenomenon. A strong current will be generated in the metal shielding layer of the metal cable itself, and the cable itself will become a large interference source.
Shenzhen Kingwire Electronics Co., Ltd. specializes in the production of ultra-five, 6, 7, and 8 network jumpers and network cables. After testing, please come to consult and negotiate.
November 02, 2021