What is the longest network cable? I want to pull to a place other than 300M, what should I do?

The network cable is generally 100m, which can be used normally.

If you do 300m, you can't theoretically make a line.

If you want to connect, you have to buy a switch to transfer.

A switch costs seventy or eighty, you count two switches, three 100m network cables, about 400.

It didn't work out very well, though.

You also have to consider the power supply of the intermediate switch.

Connect a cable from your computer to the switch (about 5 ports), and your switch will be placed at your home. Then connect one more than the switch to 300 meters away.

The maximum effective theoretical distance of a single network cable is 100m, which can be connected to 4 hubs (or repeaters), that is, the longest can not exceed 500m

Remember not to exceed 500m The rest is the power supply problem!

For example, you can just extend the distance and use the hub to save money

Then it's better to use a fiber optic transceiver A pair of fiber optic transceivers plus 300 meters of fiber optic cable is just a fiber optic transceiver + optical cable + splicing + pigtail + terminal box is almost 2000 yuan, but it is absolutely stable and very suitable for outdoor.

A repeater is connected every 100 meters, so that the transmission distance of the network cable can be extended.

100m a router, you can do the math yourself.

Use a regular wire will do.

Pull so far, the network speed is super slow!

The network cable is 300 meters, and the basic signal has been attenuated. Theoretically, the maximum length of a network cable cannot exceed 100 meters. If the network cable has strong performance, tensile resistance and shielding interference, the longest length can reach about 120, and it is not recommended to be longer.

The reason why the network cable can't be too long:

The only languages that the computer can recognize are 0 and 1, and the signals that the network has to transmit are 0 and 1. These signals become current when they pass through the network cable, and the current intensity of the network cable is between -15V and +15V, and there is resistance when the current is transmitted through the network cable. Therefore, according to the principle of high-voltage transmission, the longer the line, the greater the voltage level must be used to transmit electricity.

If the network cable is too long, but the voltage is so low, the signal will be weakened until it is lost. Therefore, the network cable should not be too long.

300 meters? The signal attenuation is very bad, and a repeater is added in the middle.

If there are no obstacles, you can use wireless routing.

It is useless to add a repeater, and it is necessary to add a network relay device with a physical address.

Theoretically, the use of repeaters is unlimited, and the network can therefore be infinitely expanded. However, in practice, because the delay range of the signal is specified in the network standard, the repeater can only work within the specified range, otherwise it will cause network failure.

For example, A communicates with B.

1) Around 50 meters.

A sends one to B"Request a connection frame", B receives A"Request a connection frame"Reply a a"A connection frame is received", A receives B"A connection frame is received"Reply to b with a "confirm connection frame".

So that A and B have a connection, and they can send the data.

2) About 100 meters.

Because the network signal is propagated in the network cable, it will continue to fail, and it is generally too weak to fail 100 meters away.

At this time, the signal can be amplified using a repeater, and two devices can be connected over 100 meters.

3) Ultra-long distance, e.g. 300 meters.

Since A communicates with B, the first thing is to ensure that the signal is not exhausted, and the second is the network standard. The network standard specifies how many times after a frame has been sent before the next frame is sent without a reply. So the distance is too far for A to receive B's reply at the specified delay and continue to send frames.

In this way, the second frame of A and the reply frame of B will meet on the same link, interfering with each other, and A and B will never be connected.

Definitely not, the effective signal transmission of the network cable is about 100 meters. However, you can use a switch to connect in the middle.

Generally speaking, the transmission distance of ordinary network cables is about 100 meters (the actual maximum distance is generally less than this value), and the signal will be unavailable if it exceeds this length, and you need to add a signal amplifier in the middle, such as a hub or a switch (it is recommended to use a switch, the noise immunity of the hub is poor), and more than one at least 3 switches are required.

There is a signal amplifier, which costs 200 pieces, one every 150 meters, but it is not practical to install it in two days.

It is recommended to use wireless bridging, about two wireless APs, open and unobstructed can reach a distance of 500 meters, if the surrounding buildings are all buildings, and their floors are not high, then there is no way.

I can't, the signal attenuation is too great.

400 meters, can be powered by network cable can be successful. 48V POE power supply is installed at 1 meter, and the multi-level link module with a double crystal head is added every 100 meters for electricity, with 3 modules.

No, the network cables we use are generally Category 5 twisted pair cables, with a maximum distance of 100m

You can't pull 400 meters, the longest 100 meters.

On the ordinary computer store sold for a dollar and a meter of network cable 100 meters must have no signal, in the middle to add a switch to increase the transmission of signal, personal testing, very troublesome. When exposed to the sun, the line will get old, and sometimes I really want to open a broadband for myself.

Hello; The longer the cable, the longer it will take to connect to the network and the slower the speed.

The effective transmission distance of the network cable is generally about 100 meters. If this limit is exceeded, the transmission signal may be jammed or even interrupted.

There are several ways to solve this:

1. If the distance is just more than 100 meters, if conditions permit, a signal amplifier or switch can be installed in the middle of the network cable to enhance the signal of the network cable, and the purpose can be achieved.

2. If the distance of more than 100 meters is a lot, and it is not realistic to increase the switch in the middle, you can set up a pair of optical transceivers at both ends, and the middle is through the leather wire optical cable, which is convenient, economical and effective.

3. In the case that the distance of more than 100 meters is not large, and there is no obstacle in the middle, the signal coverage of the router can be carried out through the bridging function of the router, so that the LAN can be extended to the place where the network cable cannot reach the distance.

To provide you with a method ...

1.Make sure there is a passage between the two of you, which means that you are like a window facing a window. There are no obstacles in between.

You can see his house directly, as long as the view is unobstructed... If you live in a building, it shouldn't be a big problem. It is best to put them all in front of the window.

2。Prepare 2 wireless routers. Preferably the same model.

Two routers are bridged. 100 meters is not a problem.

Pull it first and then say, use it and then look at it.

First, the use of copper super five network cable can achieve 200 meters of normal use, if you are worried about stability or signal consumption can not be used, you can go to 100 meters to add a switch as a signal amplifier, or 80 meters, 160 meters each install a switch, so that the signal is more stable.

2. If it is an open place, you can use a wireless amplifier, one for the transmitter and one for the receiver. It works well only in open fields.

Third, the use of optical fiber, from the cost is higher, the use of optical fiber generator, is currently the most stable practice.

It should be no problem for the switch or router to come out 30 meters. Is the quality of your network cable too poor? Or the crystal head is not done well, and the contact is poor, check this first. Also, did people set up their routers or software to limit your speed?

This has nothing to do with the length of the network cable, it may be that the network bandwidth of other people's homes is not fast in towing 2 machines, of course, it is slow

It might be better if you could get that one to change to a 150m router or a 300 one

30 meters is not a long time, it mainly depends on your network speed.