Coaxial cable from the use of points can be divided into baseband coaxial cable and broadband coaxial cable (ie, network coaxial cable and video coaxial cable). Coaxial cable 50Ω baseband cable and 75Ω broadband cable two categories. The baseband cable is subdivided by coaxial cable and coaxial cable. Baseband cable is only used for digital transmission, data rate up to 10Mbps.
Coaxial cable (Coaxial Cable) refers to two concentric conductors, and the conductor and the shield and share the same axis of the cable. The most common coaxial cable consists of a copper conductor insulated from the insulating material, and on the outside of the inner layer is another layer of ring conductor and its insulator, and the entire cable is covered by a jacket of polyvinyl chloride or Teflon material The
Coax cable (Coaxtal CabLe) commonly used in equipment and equipment between the connection, or used in the bus network topology. Coaxial cable center axis is a copper wire, plus a layer of insulating material, in this layer of insulating material is surrounded by a hollow cylindrical mesh copper conductor wrapped, the outermost layer is the insulation layer. Compared with the twisted pair, coaxial cable anti-interference ability, shielding performance, transmission data stability, the price is cheap, and it is not connected to the hub or switch can be used.
Ordinary cables are usually made of several or several groups of wires at least two] stranded cable-like cable, each group of wires insulated from each other, and often around a center twisted, the entire outer bag with a height Insulated cover. Multiple in the air or in the ground, underwater, for telecommunications or power transmission.