Network cable connector
RJ-45 connector
1. Classification of twisted pair jumpers
1) Straight-through cable: The line sequence in the RJ-45 crystal heads on both ends is exactly the same jumper, which is suitable for the connection between the computer and the hub device.
There are two standards for line sequence arrangement, namely TIA / EIA-568-A standard and TIA / EIA-568-B standard.
2) Crossover: TIA / EIA-568-A standard at one end and T568B standard at the other end
The picture shows the line sequence description
BNC coaxial cable connector
Function: It is used to construct the coaxial cable (thin cable) Ethernet network of the bus structure, through which the network connection with 50Ω thin cable as the transmission medium can be realized.
According to the role in the network, BNC coaxial cable connectors mainly have the following types:
â— BNC connector plugs: installed at both ends of the thin cable segment.
â— BNC T-type connector: It looks like the capital letter "T" in English and has three ports.
â— BNC barrel connector: There are two ports for connecting the coaxial cable with plug that has been made.
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