About the length of the network cable How long does the network cable affect the network speed?

There are three types of network cables: twisted pair, coaxial cable, and optical fiber. 1. The transmission bandwidth of Category 5 line is 100MHz, which is used for voice transmission and data transmission with a maximum transmission rate of 100Mbps, which is mainly used for 100Base-T and 10Base-T networks, and has been replaced by Category 5 line.

2. The Category 5e line has reduced attenuation and less crosstalk, and the maximum bandwidth of the Category 5e line is 100MHz. Mainly used for Gigabit Ethernet. 3. The transmission bandwidth of this type of cable is 250MHz, and the transmission performance of Category 6 cabling is much higher than that of the Super 55 standard, which is most suitable for applications with a transmission rate of 1Gbps.

Support Gigabit network, often referred to as "Gigabit network cable"; Category 6 provides a combined attenuation-to-crosstalk ratio of 200MHz and an overall bandwidth of 250MHz; Category 6 cables are mainly used in gigabit networks, and the transmission performance is much higher than the standard of Category 5 network cables. 4. Super six categories....

More than four hundred, no, the attenuation is finished, and it can't exceed a hundred.

Is the wire connected, has it been tested whether the offline is passable, and what kind of network cable you bought, the theoretical distance of the general network cable is 100 meters, and there may be no signal in the past.

Your network cable is too long, theoretically no more than 100 meters, but in practice it can't be more than 80 meters.

The quality of the network cable has a lot to do with the network speed.

The network cable has an impact on the network, first of all, the quality, under the premise of ensuring the quality, the wiring should be concise and not entangled. Also, the twisted pair should not pass near electrical appliances such as televisions. The second is the length, more than 15 meters will have a certain attenuation of the signal, according to the quality level of the domestic network cable, more than 90m may have problems, more than 100 meters is basically unusable.

As long as the network cable is ***, the length of 60 meters will not have an impact on the network speed, the network cable is too long will cause the network signal to attenuate, the interference along the road increases, so that the transmission data is easy to make errors, which will cause the Internet to get stuck, web page errors, etc., to the Internet user to cause the feeling of slow network speed, but the actual network speed (data transmission speed) is not slowed down, but after the data error, the computer checks and corrects the data time.

1. The length of the network cable has an impact on the network speed, but more correctly, it has an impact on the signal strength. In fact, the only languages that computers can recognize are 0 and 1.

2. The network cable, generally made of metal or glass, can be used to transmit information within the network. There are three types of network cables commonly used: twisted pair, coaxial, and fiber optic (fiber-optic).

A twisted pair is a data transmission line that consists of many pairs of wires. Its point is that it is cheaper, so it is widely used. The twisted pair is used to connect with the RJ45 crystal header, there are two types: STP and UTP, and the commonly used is UT.

3. The network cable is the connection line between the computer and the computer, and between the computer and other network equipment. Commonly used network cables are twisted pair cables and coaxial thin cables. Using a thin coaxial cable for a network connection is relatively simple, as long as each computer or network device is connected in series, but it is more cumbersome to maintain, and if something goes down, the entire network can be paralyzed.

If you add or remove a computer from the network, you must stop working on the network until the computer is added or removed before you can continue to use it. At the same time, this approach must be done in a bus-type topology, which is rarely used today.

If the network cable is shortened, the method of connecting it is as follows:1. Use connectors. If the network cable we use is relatively short, we can first find a network cable with the same standard and connection method as the current network cable, for example, the current network cable uses the cross-interconnection method (one end uses the 568A standard, and the other end uses the 568B standard), and then finds a network cable that is also the cross-connection method after a while.

For example, if the end to be connected is using the 568A standard, then the backup network cable must plug the 568A end into the connector.

2. Docking network cables. There are 8 network cables with different smiles on the inside of the network cable, cut off the crystal head at one end of the code bridge that needs to be connected to the network cable, and then cut off the rubber about 2cm long (the rubber of the network cable of different colors should also be cut off to expose the copper core), the spare network cable is also cut off to expose the copper core inside, and the network cable of the same color is wound, and after all the network cables are wound, it can be wound with insulating tape;

3. Use a wiring. According to method 2, cut off the crystal head of the network cable, and then cut off the rubber to expose the 8 copper cores of different colors inside, and put the copper core of the same color into the wiring to connect the 8-core network cable.

The length of the network cable should not exceed 100 meters, and it is best to control it within 90 meters

1. The most commonly used computer LAN technology is called Ethernet, which can be transmitted through a variety of media, and now the common user-side lines mostly use 8-core non-Lao Kai shielded twisted pair cables;

3. In terms of length, the length of the twisted pair connecting computers and network equipment should not exceed 100 meters, and it is best to limit it to 90 meters. For a twisted-pair network connected by hubs, the total line distance between the two end devices shall not exceed 110 meters, the two end devices shall not exceed four hubs at a rate of 10 m, and the two end devices shall not exceed two hubs at a rate of 100 mbit/s.

3. It is not allowed to rely on hubs or ordinary switches to try to establish roundabout or redundant network paths, and under no circumstances should you interconnect the wall network cable sockets between the two rooms.

Limit on the length of network cables

1. The most commonly used computer LAN technology is called Ethernet, which can be transmitted using a variety of media. Thick and thin baseband coaxial cables (cable TV cables cannot be used) can only support 10Mbps transmission, and are rarely used now. Fiber optic supports Mbps transmission, but it is too costly for the end user.

Therefore, the common client-side lines now mostly use 8-core unshielded twisted pair cables.

2. Twisted pair wires are classified according to different manufacturing processes, and there are 3 categories, 5 types, super 5 categories and 6 categories for digital signals, and the words cat3, cat5, cat5e cat5+ and cat6 are marked on the outer sheath respectively. Among them, 3 types can only be used in a 10Mbps environment, which is basically not used; Category 5 can be used in 100Mbps environment; The latter two can be up to 1000Mbps.

3. In terms of length, no matter what rate of Ethernet, the length of the twisted pair connecting computers and network equipment should not exceed 100 meters, and it is best to limit it to 90 meters. In a twisted-pair network connected by a hub, the total line distance between the two end devices cannot exceed 205 meters. At a speed of 10M, there cannot be more than 4 hubs between two end devices. At a speed of 100 Mbit/s, there cannot be more than two hubs between two end devices.

Networks connected with switches are exempt from this limitation.

As the most important common sense, Ethernet cannot be looped. It is not allowed to rely on hubs or ordinary switches or even directly use network cables to try to establish a circuitous or redundant network path, and the network equipment on the ring will die almost immediately. So under no circumstances do you interconnect the wall network cable sockets of the two rooms.

The design transmission distance of the network cable is 100 meters, and it can reach 130 meters under the condition of ensuring the stability of the line quality and terminal equipment. However, there is no guarantee of transmission quality.

It is recommended to replace it with fiber optics for more than 100 meters.