Integrated wiring: The basic difference between 10G and 6 classes

As the transmission channel of the data network, the transmission performance level (i.e. the category of the wiring system) directly affects the transmission speed of the network. 10G Cabling System and 6 types of systems from the technical parameters of a very big difference, the frequency range of its work from the 6 class 250MHz extended to 500MHz. The increase in operating frequency has brought some problems that were not (accurately negligible) in the operation of Class 6 systems, that is, the crosstalk generated between adjacent cables and modules, called external crosstalk (Anext).

The main source of the 6-type system noise is the string winding between the 4 pairs of strands in a cable, while other cables around the cable have negligible effect on the wiring. In the 10G wiring system, due to the increase in operating frequency, noise in addition to the 6 types of systems in the cable around the wire, the surrounding cable to the other cables around the impact of the series is also a very major source of noise. With the advance of electronic technology, there is already a way to solve the noise inside the cable, that is, by generating a signal contrary to the noise, and adding the signal to the accepted signal, thus eliminating the noise in some cables. Noise outside the cable because of the uncertainty of adjacent cables can not use this technology, so for 10G cabling, cable and module resistance to the external crosstalk of the ability to become a key technical indicators. ---http://bianceng.cn (computer science)

One way to reduce the outer string is to increase the distance from the source of the noise. The cable can be thicker skin or different from the conventional round design to artificially increase the distance between cables, some manufacturers of wiring racks and wall panels are also used to increase the module spacing method to reduce cables, modules and jumper between the external string. So from the look, many manufacturers of 10G cable than 6 types of cable to coarse, the shape may be different from the usual round, wiring racks may be different from the configuration of a common 5/6 types of wiring racks, arrangement density is lower, the density of the panel on the socket will be lower than the 5/6-class system. The 6-class system itself can also transmit the 10G that is currently under development, but because the environment for 500MHZ is not considered in the 6 class development (6 application bandwidth is 250MHz), it can only support the transfer to 55 meters in the 10G transmission. The current development of the 10G cabling system will be targeted to support the 100 meters distance to meet 10G transmission, and has some leading manufacturers to launch the relevant products.