The network cable actually has a great influence on the network speed. No matter how good your switch or router is and how high the broadband speed is, if the quality of the network cable is not good enough, the entire network will be greatly reduced.
At present, the most commonly used network cables in the market are Cat.5e and Cat.6 network cables.
Cat.5 network cable has a maximum transmission rate of 100Mbps, which only supports 100M networks, and is now used less.
Cat.5e network cable is a transition product from Cat.5 to Cat.6, with stronger anti-interference performance, lower attenuation and higher cost performance during transmission. Cat.5e network cable can be used in Gigabit Ethernet, can stably support 100Mbps transmission rate, and can negotiate up to Gigabit (1000Mbps) rate.
Cat.6 network cable can stably support Gigabit networks, and its transmission rate is much higher than Cat.5 and Cat.5e network cables, up to 1Gbps, and can stably support 1000Mbps transmission, and can be used in a network environment requiring a transmission rate higher than 1Gbps. The copper diameter of the Cat.6 network cable is thicker, and the cross-insulating skeleton is added, and the near-end crosstalk and return loss of the network cable are lower.
How to choose a network cable?
①Copper conductor of network cable
The conductor diameter of the Cat.5e network cable is 0.511mm, and the conductor diameter of the Cat.6 network cable is 0.574mm. The thicker the copper conductor of the network cable, the smaller the resistance, the better the conductivity, and the smaller the signal attenuation. Poor quality network cables have large copper conductor resistance, short transmission distances, and low transmission rates.
②Twisted pair density
The higher the twisted-pair density of the network cable conductor, the more effectively the signal crosstalk between the pairs can be offset, and the external electromagnetic interference can also be resisted. There is a cross frame in the center of the Cat. 6 network cable. The four pairs of twisted pairs are stuck in the grooves of the frame, and the relative position of the four pairs of twisted pairs is maintained, which can reduce the crosstalk attenuation between the cables.
Cat.5 network cables can stably support a rate of 100Mbps, with a peak value of up to 1000Mbps;
Cat.6 network cables can stably support 1000Mbps. Because Cat.6 network cables have a larger diameter and stronger anti-crosstalk capabilities, they have better performance in high-speed transmission environments. stable. However, the price of the Cat.6 network cable is slightly more expensive than the Cat.5 network cable. If you consider the network demand in the next 10 years, you can choose the Cat. 6 network cable.