What is the maximum transmission distance of the network cable?

　　The maximum tranSMission distance of a network cable mainly depends on its type and specification, as well as whether a relay device or amplifier is used. Here is a detailed explanation of the transmission distance of the network cable:

　　Network cable types and specifications

　　Category 5 network cable (Cat5):

　　The maximum transmission speed can reach 100Mbps.

　　The frequency range is 100 MHz.

　　The maximum transmission distance is 100 meters.

　　Category 6 network cable (Cat6):

　　More advanced than Category 5 network cables.

　　Transmission speeds can reach up to 10Gbps (gigabits per second).

　　The frequency range is 250 MHz.

　　The maximum transmission distance is also 100 meters.

　　Super Category 5 network cable:

　　The transmission distance is generally no more than 100 meters, but the oxygen-free copper super-Category 5 cable may pass through 120 meters.

　　Category 7 network cable (Cat7):

　　Higher standards.

　　Transmission speeds can reach up to 10Gbps.

　　The frequency range is increased to 600 MHz.

　　The maximum transmission distance is maintained at 100 meters.

　　Category 8 network cable (Cat8):

　　The highest standard.

　　Transmission speeds can reach up to 40Gbps.

　　The frequency range is 2000 MHz.

　　The maximum transmission distance is 30 meters.

　　Second, the reasons for the transmission distance limit

　　The transmission distance of the network cable is limited by many factors, including signal attenuation, crosstalk and interference, transmission rate and bandwidth requirements. The combined effect of these factors causes the signal quality of the network cable to drop significantly after a certain distance, thus affecting the stability and reliability of data transmission.

　　III. Methods for extending the transmission distance

　　Use relay equipment: Install repeaters (such as switches, hubs, etc.) between two twisted pairs to extend the effective transmission distance. According to regulations, up to 4 repeaters can be installed, each repeater is connected to two network segments, so that the theoretical maximum transmission distance can reach 500 meters (that is, 100 meters per network segment, a total of 5 network segments).

　　Use other transmission media: For specific applications or special needs, other transmission media, such as fiber optics or wireless technology, can be considered. The transmission distance of fiber optics far exceeds that of copper wires. Single-mode fiber can easily reach several kilometers to tens of kilometers, and multimode fiber can also cover hundreds of meters to several kilometers.

　　In summary, the maximum transmission distance of the network cable is generally 100 meters (for Category 5, Category 6, Super Category 5 and Category 7 network cables), while the maximum transmission distance of the Category 8 network cable is 30 meters. When the transmission distance needs to be extended, the method of using relay equipment or other transmission media can be adopted.