Five lines of the logo is "CAT5", bandwidth 100M, for more than 100 megahertz network; super five lines of the logo is "CAT5E", bandwidth 155M, is the current mainstream products; six lines of the logo is "CAT6" , Bandwidth 250M, for the erection of Gigabit network, is the future development trend.

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"Ultra-five" refers to the ultra-five unshielded twisted pair (UTP-UnshieldedTwistedPair)

Unshielded twisted pair cable is made of multi-pair twisted pair and a plastic skin. Five categories refer to the five different quality levels defined by the International Electrical Manufacturers Association for twisted pair cables.

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Ultra-five types of unshielded twisted pair cable in the existing five types of shielded twisted pair performance to improve after the cable, a lot of performance parameters, such as near-end crosstalk, attenuation crosstalk ratio, return loss and so on Increase, but its transmission bandwidth is still 100MHz.

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Ultra-five twisted pair is also used in four pairs and a pair of anti-cord, line color and five twisted pair exactly the same, respectively, white orange, orange, white green, green, white blue, blue, white Brown and brown. Bare copper wire diameter of 0.51mm (wire gauge for the 24AWG), the insulation diameter of 0.92mm, UTP cable diameter of 5mm.

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Although the ultra-five unshielded twisted pair can also provide up to 1000Mb / s transmission bandwidth, but often need to rely on the support of expensive special equipment. Therefore, it is usually only applied to 100Mb / s Fast Ethernet, to achieve the desktop switch to the computer connection. If you are not prepared to upgrade the network to Gigabit Ethernet, then you may wish to use the level of wiring in the ultra-five unshielded twisted pair.

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"Six categories" refers to six types of unshielded twisted pair

Six types of unshielded twisted pair of parameters have greatly improved, the bandwidth is also extended to 250MHz or higher. Six twisted pair in the shape and structure with five or super five twisted pair have a certain difference, not only increased the cross of the skeleton, the twisted pair of four pairs of lines were placed in the cross Groove, and the diameter of the cable is also thicker.

The center of the cable crosses the skeleton with the length of the rotation angle, the four pairs of twisted pair card in the skeleton of the groove, to maintain the relative position of the four pairs of twisted pair, improve the cable balance characteristics and crosstalk attenuation. In addition, to ensure that the balance of the cable during the installation process is not destroyed. Six types of unshielded twisted pair bare copper wire diameter of 0.57mm (wire gauge for the 23AWG), the insulation diameter of 1.02mm, UTP cable diameter of 6.53mm.

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Super five or six categories

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According to the different electrical performance, twisted pair can be divided into three categories, five categories, five categories, six and seven types of twisted pair. Different types of twisted pair price difference is even large or even disparity, the scope of application is also very different.

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In addition to the traditional voice system is still using three types of twisted pair, the network wiring is basically in the use of ultra-five or six unshielded twisted pair. Five types of unshielded twisted pair can still support 1000Base-T, but because of the price and ultra-five non-shielded twisted pair is almost the same, it has gradually fade out of the wiring market.

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Six types of unshielded twisted pair Although the price is higher, but with the ultra-five cabling system has a very good compatibility, and can be very good support 1000Base-T, it is slowly becoming the new darling of integrated wiring. Seven types of shielded twisted pair are a new cabling system, although the performance is excellent, but because of the high price. Construction of complex and optional products less, so rarely used in wiring engineering.

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Six types of unshielded twisted pair can be very good support Gigabit Ethernet, and to achieve 100m transmission distance. Therefore, the six cabling systems are widely used in sub-server room wiring, as well as to upgrade to Gigabit Ethernet capabilities of the level of wiring. According to the international wiring standard ISO11801, the wiring system has a life expectancy of at least 10 years. As a long-term basic investment, integrated wiring should take full account of the potential needs of the network and the development of the wiring system, therefore, under the conditions of funding, it is recommended to choose six types of products to build wiring system.

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If you consider the future application of the network needs, theoretically should install the most advanced cabling products, because the installation of cables is often difficult to re-update replacement, basically, a cabling system at least 10 years as a standard, to support 4 to 5 generations of the network The performance of the device is updated if the future network equipment requires a better cable to increase the speed of the data.

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Then, with six types of cable instead of ultra-five cable is inevitable, but these cables re-formation of the project is very expensive, so even if the price of six products relative to the ultra-five products slightly expensive, but in order to reduce the future network upgrade, Six categories of products are still worth considering.

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"Super six"

BeldenIBDN developed a high-performance cabling system with a target of 40 ° C or more and launched the IBDN4800LX system at the end of 1999 with a final reach of 300MHz bandwidth and a Class C standard of 20 ° C at 50 ° C Performance. In order to distinguish between the ordinary 6-type cabling system, this bandwidth performance far more than 6 types of wiring known as the super 6 class.

Most of the super-class 6 cabling uses the same modules and jumpers as the 6 brands of the same brand, so their main difference is on the cable. IBDN super 6 cable 4800LX from the beginning of the target set at a higher temperature normal operation, so one of the characteristics of its cable structure is large diameter, transmission conductor diameter from the general 6 class 0.5mm (24AWG) Increased to 0.6mm (23AWG); there are some manufacturers in the beginning of the super 6 cable with 24AWG and try to improve the NEXT method, but by 2002 to improve the cable to its wire diameter to 23AWG. Another feature is the addition of a pair of twisted pairs of twisted pairs. Without a cross, a pair of wires in the cable may be trapped in the gap between the two wires, and the spacing between the lines is reduced to increase the crosstalk problem. The divider strips, together with the outer sheath of the cable, tightly fasten the four pairs of wires in their design position and slow down the wire loosening of the cable bend, thereby reducing the performance degradation during installation. The 4800LX is the first super-class cable with a crossbar, and the later cables are modeled and similar.