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The standard of Cat8 network cable

In the field of ethernet communication, when it comes to ethernet cables, it is often mentioned that the Cat5e ethernet cables, the Cat6 ethernet cables and the seven types of ethernet cables are mentioned. However, in recent years, Cat8 cables have begun to be mentioned more, so what is the difference between Cat8 ethernet cables and previous cables?

Cat8 ethernet cable is the latest generation of double-shielded (SFTP) ethernet jumper. It has two signal pairs, which can support 2000MHz bandwidth, and the transmission rate is as high as 40Gb/s, but its maximum transmission distance is only 30m, so it is generally used. Connecting servers, switches, patch panels and other equipment in short-distance data centers.
At present, the common ethernet cables on the market are Cat5e ethernet cables, Cat6 ethernet cables, Cat6e ethernet cables, Cat7 ethernet cables and Cat7e cables. Cat8 CAT8 ethernet cable is the same as Cat7/Cat7e ethernet cable, it is a shielded twisted pair cable, which can be used in data centers, high-speed and bandwidth-intensive places, although the transmission distance of Cat8 ethernet cable is not as good as that of Cat7/Cat7e ethernet cable It is far, but its speed and frequency are much higher than those of Cat7/Cat7e ethernet cables. There is a big difference between the Cat8 ethernet cable, the Cat5e ethernet cable, the Cat6 ethernet cable, which is mainly reflected in the speed, frequency, transmission distance and application.

The relevant standards of Cat8 ethernet cables were officially released by the TIA TR-43 Committee in 2016, as follows:
1. Compliant with the IEEE 802.3bq 25G/40GBASE-T standard, which specifies the minimum transmission rate of Cat8 ethernet cables, which can support 25 Gbps and 40 Gbps network wiring.
2. Complies with ANSI/TIA-568-C.2-1 standard, which specifies the channel and permanent link of Cat8 ethernet cable, and includes the limitation of resistance unbalance, TCL and ELTCTL.
3. Comply with ANSI/TIA-1152-A standard, which specifies the measurement and accuracy requirements of Cat8 ethernet cable field tester.
4. Comply with ISO/IEC-11801 standard, which specifies the channel and permanent link of I/II Cat8 ethernet cable.

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