4pairs are several types of network cables

4pairs are Category 5 network cables. Category 5 cable is a twisted pair cable used in computer networks. It is also a multimedia cable used for data, voice and other information communication services. It is widely used in Ethernet and broadband access projects. Its quality is directly related to to the transmission quality of information communications.

The operating environment of this tutorial: Windows 7 system, Dell G3 computer.

4pairs are Category 5 network cables.

Category 5 cable, referred to as Cat.5, is a twisted pair cable used in computer networks. It is also a multimedia cable used for data, voice and other information communication services. It is widely used in Ethernet , In the broadband access project, its quality is directly related to the transmission quality of information communication. Due to the development of optical fiber and communication technology, the impact of twisted pairs on communication quality is gradually decreasing.

Category 5 lines were born with 100Mbps Fast Ethernet, but with the development of network technology, the physical layer transmission protocol 1000Base-T based on Category 5 lines has made Category 5 lines Class Cable also has the transmission capability of Gigabit Ethernet (1,000,000,000 bit/s). This technology achieves a smooth transition from 100M to Gigabit while retaining the original cable. Therefore, after the devices at both ends automatically negotiate, the Category 5 line can operate at a 100MHz operating frequency under 10BASE-T, 100BASE-TX (Fast Ethernet), and 1000BASE-T (Gigabit Ethernet) and other technologies to undertake Ethernet at different rates. transmission medium. To ensure transmission quality, the transmission distance of Category 5 lines is generally within 100 meters.

More applications of Category 5 cable

Category 5 cable, as an 8-core copper cable with good performance, can naturally play a role in signal transmission other than Ethernet. For example, it carries voice and video. In some cases, Category 5 can carry multiple traditional phone lines on a single cable. There are several options for transmitting analog or digital video over cable. HDBaseT (10.2 Gb/s) is one such solution.

Qualified unshielded Category 5 twisted pair cable

Shielded twisted pair cable

Shielded Category 5 twisted pair cable There is a metal film for shielding, which has better anti-interference performance. Some readers may ask why not use shielded Category 5 twisted pair? This is because shielded twisted pair cable requires that the entire system be shielded, including cables, sockets, crystal heads and distribution frames, etc., and the building needs to have a good grounding system. However, in actual construction, it is difficult to ground everything, making the shielding layer itself the biggest source of interference, resulting in performance that is even far inferior to unshielded twisted pair UTP. Therefore, unless there are special needs, only unshielded twisted pairs are usually used in integrated wiring systems.

Shielded Category 5 cable

Explanation: The logo of Category 5 cable is "Cat.5", and the logo of Category 5e cable is "Cat.5e" , is a mainstream product; the logo of Category 6 lines is "Cat.6". Same as above.

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