1. The difference between cabo Ethernet blindado and unshielded Ethernet cables
Let’s take a look at their appearance.
From the appearance, it can be seen that the shielded network cable has aluminum foil or copper braided mesh for shielding inside.
Shielded Ethernet cable refers to an Ethernet cable with an internal shielding layer, which is a woven mesh of aluminum foil and copper wire. The shielding layer of a single shielded Ethernet cable only has one layer of aluminum foil paper, while a double shielded Ethernet cable is wrapped with a layer of aluminum foil and a layer of copper wire braided mesh outside the twisted pair. Dual screen Ethernet cable and unshielded Ethernet cable are distinguished according to the different usage environments. Cabo Ethernet com blindagem dupla is mainly used in environments with strong interference, while unshielded Ethernet cable is used in ordinary daily network environments.
2. Purpose of shielding Ethernet cables
It is precisely because of the structure of shielding Ethernet cables that their purpose is determined. Shielding is used to reduce the impact of external electromagnetic interference on data transmission, and is commonly used in computer room environments with complex electromagnetic environments and strong interference.
Interference in the environment can cause intermittent or even interrupted transmission of network cable signals, making it impossible to transmit signals normally. The use of shielded CAT6A Cabo Ethernet Industrial can effectively resist interference, maintain normal transmission, and have good confidentiality performance. 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 block the electromagnetic leakage of the cables themselves. It will not emit interference signals that affect the operation of other cables, and can prevent information from being eavesdropped.
In cabo ethernet flexível, there is always a copper wire, also known as a ground wire, which can be used as a shielded RJ45 socket. When in use, one end of the drain wire is grounded. Ground wires can better shield external signals. Shielding Ethernet cables requires good grounding and shielded lines to effectively reduce the impact of strong interference on network signals. In non essential situations, shielded cables should not be used because the wiring requirements for shielded cables are high. Not only do they require shielded accessories in the system, but they also need good grounding to be effective. If the grounding is not good, the effect will be very poor.
What is CAT6A single shielded Ethernet cable?
What is CAT6A dual shielded Ethernet cable?
CAT6A shielded Ethernet cable is wrapped with a layer of aluminum foil and a layer of copper wire braided mesh outside the twisted pair, suitable for high-speed networks and high security transmission to reduce radiation. This type of shielded wire is suitable for the application field of high-frequency signal sine wave signals, and is used for the wiring between the user communication outlet of the residential comprehensive cabling system and the distribution frame.
The structure of CAT6A ethernet cable
● Conductor: 26AWG solid oxygen free copper, resistance ≤ 7.0 Ω/100m
● Insulation: Foam PE, low dielectric, low attenuation
● Cross skeleton: Center HDPE isolation to reduce crosstalk between wire pairs (NEXT)
● First level shielding (wire pair): 4 pairs of wires are wrapped in aluminum foil to suppress internal crosstalk and high-frequency interference
● Second shielding (overall): Tin plated copper braided mesh (coverage ≥ 85%), absorbing low-frequency EMI and enhancing mechanical strength
● Drainage line: closely attached to aluminum foil, convenient for grounding and conduction
● Outer sheath: PVC/CMR/LSZH (low smoke and halogen-free), flame retardant and aging resistant
Which occasions require the use of dual shielded Cat6a Ethernet cable
● Data Center: Server/Switch 10 Gigabit Interconnection, High Density Distribution Frame
● Industrial environment: factories, production lines, frequency converters/motors, robot control
● Medical facilities: MRI, CT, near operating rooms, with precision equipment to prevent interference
● Strong electric well/distribution room: same cable tray as 220V/380V cable
● Building backbone/cross floor: vertical wiring, distance>30 meters, complex interference
