The general household type is the "Super Five Class Line", and the following is a detailed introduction:
1) Category 1 cable (CAT1): The highest frequency bandwidth of the cable is 750kHZ, used for alarm systems or only for voice transmission (Category 1 standard is mainly used for telephone cables before the early 1980s), different from data transmission.
2) Category 2 cable (CAT2): The maximum frequency bandwidth of the cable is 1MHz, used for voice transmission and data transmission with a maximum transmission rate of 4Mbps. It is commonly used in old token networks that use the 4MBPS standard token passing protocol.
3) Category 3 cable (CAT3): Refers to a cable specified in the ANSI and EIA/TIA568 standards, with a transmission frequency of 16MHz and a maximum transmission rate of 10Mbps (10Mbit/s). It is mainly used for voice, 10Mbit/s Ethernet (10BASE-T), and 4Mbit/s token ring, with a maximum network segment length of 100m and RJ connectors, which have faded out of the market.
4) CAT4: This type of cable has a transmission frequency of 20MHz and is used for voice transmission and data transmission with a maximum transmission rate of 16Mbps (referring to a 16Mbit/s token ring). It is mainly used for token based LANs and 10BASE-T/100BASE-T. The maximum network segment length is 100m and RJ connectors are used, which are not widely used.
5) Category 5 cable (CAT5): This type of cable has increased winding density and is coated with a high-quality insulation material. The maximum frequency bandwidth of the cable is 100MHz, with a maximum transmission rate of 100Mbps. It is used for voice transmission and data transmission with a maximum transmission rate of 100Mbps, mainly for 100BASE-T, with a maximum network segment length of 100m and RJ connectors. This is the most commonly used Ethernet cable. In twisted pair cables, different pairs have different lay lengths. Usually, the twist period of four pairs of twisted pairs is within 38.1mm, twisted counterclockwise, and the twist length of one pair is within 12.7mm.
6) CAT5e: CAT5e has low attenuation, low crosstalk, higher attenuation to crosstalk ratio (ACR), structural return loss, and smaller delay error, greatly improving performance. Super Class 5 cables are mainly used for Gigabit Ethernet (1000Mbps).
7) Category 6 cable (CAT6): The transmission frequency of this type of cable is between 1MHz and 250MHz, and the comprehensive attenuation to crosstalk ratio (PS-ACR) of Category 6 cabling system should have a large margin at 200MHz, providing twice the bandwidth of Category 5. The transmission performance of Category 6 cabling is much higher than that of Category 5 standards, making it the most suitable for applications with transmission rates higher than 1Gbps. An important difference between Class 6 and Class 5 is that it improves performance in terms of crosstalk and return loss. For the new generation of full duplex high-speed network applications, excellent return loss performance is extremely important. Canceled from the six categories of standards