Internet in the "lan cable"

STP twisted-pair separation within the layer of metal film, the data transfer to reduce electromagnetic interference, so it has higher stability. The UTP cable is not within this layer of metal film, so it's less stable, but its advantage is price. UTP twisted pair with prices generally in the1 m 1 yuan, while the STP twisted pair on the might, and cheaper in dollars and 1 meter, you might dozen yuan to 1 meter. Generally purchased in the business where twisted pair twisted pair and the RJ45 connector to do, get it back into use on. If Xian Xin, can also be made, but need to buy a card pliers. A total of eight wire twisted pair, 8 wire routing rules are useful to 1236 lines, 4578 lines idle.

 Coaxial cable, is made up of layers of insulated wire wrapped around the central copper conductor cable. It is characterized by good anti-interference ability, stable transmission of data, better prices, also is widely used, such as cable TV lines. Thin coaxial cable generally the market price a few dollars a meter, not too expensive. And BNC coaxial cable used to connect the first, the market sell coaxial cable and BNC are usually the first connection has been good the finished product, we can directly use.

 Cable, is the most advanced cable, but it's more expensive, rarely used in domestic situations. It is fine as hair from the root of many of the glass fiber composition of external insulation sleeve. Because by light transmission, it is characterized by excellent resistance to electromagnetic interference, secrecy is strong, fast, large transmission capacity, etc.

 UTP's English name is Twist-Pair. Integrated wiring project is the most commonly used transmission medium.

 Twisted pair with each other using a pair of insulated metal wire strands each part of the way to resist the external electromagnetic interference. The two insulated copper wires twisted together with each other by a certain density, can reduce the degree of signal interference, each conductor in the transmission of radiation of radio waves will be another online radio waves off the root. "Twisted pair" name is derived from this. Generally consists of two twisted-pair copper wire 22-26 intertwining of insulation made of actual use, the twisted pair is more on the twisted-pair cable with the insulation wrapped in a sleeve inside. A typical four pairs twisted pair, there are more on the twisted-pair cable in a casing inside. These we call the twisted-pair cable. In the twisted-pair cable (also known as twisted pair cable), the different lines have different twist on the length, in general, twist 38.1cm to 14cm in length, according to counter-clockwise twist. Adjacent pair of twisted 12.7cm in length or more, generally the more twisted routes close its stronger anti-interference ability, compared with other transmission media, twisted pair in the transmission distance, channel width and data transfer speed and so on are subject to certain restrictions, but the price is relatively cheap.