Network cable is a common wire in our daily life, generally used network cable has five categories, super five categories, six categories, super six categories and seven categories of network cable. So many kinds of network cable, how should we go distinguishing? Now let us introduce the types of network cables and their differences.
1.CAT1: mainly used for voice transmission (class a standard is mainly used for telephone cables before the early 1980s). Different from data transmission, it has been eliminated by the standard.
2.CAT2: 1MHZ transmission bandwidth is used for voice transmission and data transmission with a maximum transmission rate of 4Mbps, which is commonly used in the old Token Ring using 4Mbps standard Token transfer protocol and has been eliminated by the standard.
3. CAT3: the transmission bandwidth of this cable is 16MHz, which is used for voice transmission and data transmission with the maximum transmission rate of 10Mbps. It is mainly used for 10BASE--T, and is regarded as the lowest use grade by ANSI/ tia-568.c.
4. CAT4: the transmission bandwidth of this type of cable is 20MHz, which is used for voice transmission and data transmission with the maximum transmission rate of 16Mbps. The cable is mainly used for token-based LAN and 10base-t / 100base-t, which has been eliminated by the standard.
5. CAT5: this type of cable increases the winding density and has a transmission bandwidth of 100MHz. It is used for voice transmission and data transmission with a maximum transmission rate of 100Mbps.
6. CAT5E: it has low attenuation and less crosstalk. Compared with five-class line, it increases the test requirements of near-end crosstalk power and noise.The maximum bandwidth of the superquintuple is 100MHz.
7. CAT6: the transmission bandwidth of this type of cable is 250MHz, and the comprehensive attenuation cross talk ratio (ps-acr) of the six types of cabling system at 200MHz should have a large amount of allowance, which provides twice as much bandwidth as that of the over five types.The transmission performance of the six types of cabling is much higher than that of the super five standards, which is most suitable for the application with a transmission rate of 1Gbps.One important difference between the six classes and the super five classes is that they improve the performance in crosstalk and return loss. For the new generation of full-duplex high-speed network applications, excellent return loss performance is extremely important.
8. CAT6E: super six line is an improved version of the six line, released in 2008, is also ANSI/ tia-568c.2 and ISO/IEC 11801 super six line /EA level standards specified in a twisted pair cable, mainly used in the million bit network.The transmission frequency is 500 MHz, and the maximum transmission speed can reach 10Gbps, which is greatly improved in external crosstalk and other aspects.
9.CAT7: this cable is a twisted-pair cable approved in 2002 in ISO/IEC 11801 class 7 /F standard, which is mainly used for the application and development of ten-gigabit Ethernet technology.But it is no longer a non-shielded twisted pair, but a shielded twisted pair, so it can transmit at least 600 MHz at a rate of 10 Gbps.
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