Is the unshielded network cable butt shielded?

　　Unshielded network cable connectors are usually not shielded. The following is a detailed explanation of unshielded and shielded network cables and their connectors:

　　unshielded network cable

　　The unshielded network cable is used in an environment without strong interference and has a certain anti-interference ability, so it can meet the normal use needs in daily weak interference situations. There is no additional shielding layer inside the network cable to resist external electromagnetic interference, the price is relatively low, and the installation is relatively simple.

　　Shielded network cable

　　The shielded network cable is designed for use in a strong interference environment, which can ensure the normal tranSMission of the network cable under strong interference. The shielded network cable is divided into single shielding and double shielding. The single shielded network cable has a layer of aluminum foil shielding layer inside, while the double shielded network cable has a layer of aluminum foil shielding layer and a layer of metal mesh shielding layer inside. This design can effectively reduce the impact of external electromagnetic interference on the transmission of the network cable.

　　butt joint

　　Unshielded network cable connector: Since the unshielded network cable itself has no shielding layer, its docking head (such as RJ45 plug) is usually unshielded. This type of docking head has a simple structure and is inexpensive, making it suitable for general home and office environments.

　　The connector of the shielded network cable: The connector of the shielded network cable must be shielded, that is, the shielded crystal head. The shielded crystal head has a metal shielding layer that can be connected to the shielding layer of the shielded network cable to form a complete shielding system and further improve the anti-interference ability.

　　Precautions

　　When using a shielded network cable, it is necessary to pay attention to connecting the shielding layer to the shielding layer at both ends of the module to ensure the shielding effect.

　　The shielding layer of the shielding network cable usually does not need to be pressed in when connecting the crystal head, but should be removed and connected to the crystal head in line sequence. But the outer skin of the network cable must be pressed into the crystal head.

　　In summary, the unshielded network cable butt is usually not shielded, while the shielded network cable butt must be shielded. When selecting the network cable and its butt, it should be selected according to the actual use environment and needs.