#ABCCables

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Coaxial Cable Classification

MV ABC cable

There are two types of coaxial cables: thin cable (RG-58) and thick cable (RG-11). Thin cable: The diameter of the thin cable is 0.26 cm, and the maximum transmission distance is 185 meters. When used, it is connected with a 50Ω terminal resistor, T-type connector, BNC connector and network card. The price of the wire and the cost of the connector are relatively cheap, and there is no need to purchase a hub It is very suitable for setting up a small Ethernet network with relatively concentrated terminal equipment. The total length of the cable should not exceed 185 meters, otherwise the signal will be seriously attenuated. The impedance of the thin cable is 50Ω.

Thick cable (RG-11) has a diameter of 1.27 cm and a maximum transmission distance of 500 meters. Because the diameter is quite thick, its elasticity is poor, and it is not suitable for erecting in a narrow indoor environment. Moreover, the production method of the RG-11 connector is relatively complicated, and it cannot be directly connected to the computer. It needs an adapter The converter is converted into an AUI connector, and then connected to the computer. Due to the stronger strength of the thick cable, the maximum transmission distance is longer than that of the thin cable. Therefore, the main purpose of the thick cable is to play the role of the network backbone and connect several networks formed by thin cables. The impedance of the thick cable is 75Ω.

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