Some people say that PoE switches have poor power supply, are unstable, and are not easy to use, so they continue to use traditional power supply methods. It is also said that PoE switches have high power supply costs and they have also abandoned it.
I want to say, man, do you really understand PoE switches?
No denying that the PoE switch is actually unstable in reality, but it has nothing to do with the PoE switch itself. It is related to improper use.
What is improper use? The quality of the selected network cable is poor, the power supply distance is too long, the poor PoE switch, and the PoE switch selection is not suitable.
The PoE-powered carrier is a network cable. The quality of the network cable is directly related to the success or goodness of PoE power supply. This is followed by driving to a place where it is found that roads are built, roads are blocked, or the entire road surface is pitted. The result is that it is either unable to arrive or is even reluctant to arrive.
Although PoE power supply is convenient and flexible, the linear distance of power supply cannot exceed 100 meters. There are both power and data signals in the network cable. The power signal does not have a distance limit. It can go to 200 meters or 500 meters, but the data transmission is not enough. It has losses, and the greater the distance, the greater the loss. In order to guarantee the best video picture effect, according to the data transmission standard, the distance of PoE power supply cannot exceed 100 meters.
There is also a very important factor: PoE switch selection is not appropriate, that is, the quality of the selected PoE switch does not pass, or the model selection is wrong.
It is the idea of ​​many people that maps are cheap, and they always want to achieve a goal at the lowest cost. In a medium-to-large-scale monitoring project, or in places where monitoring requirements are very high, selecting an unknown small manufacturer's PoE switch may cause problems because the quality and performance of products cannot be 100% guaranteed.
Before a customer is such a situation, compared several companies, and finally chose a PoE switch with the lowest price, I feel that since they are all PoE switches, it is certainly able to supply power, good or bad is no difference. As a result, the supply of electricity was unstable first, and then it directly went on strike. I later found me and advised him to replace a good PoE switch. Later, he turned to Feng Runda's PoE switch for the specific situation of the project, and the problem was solved.
In addition, although a better PoE switch is selected, it may not be possible to select a wrong type of PoE switch. For example, where a full Gigabit PoE switch should be used, a 100M or 100K mixed PoE switch is used, which may cause data transmission delays, jams, and loss to occur, failing to achieve the best effect of monitoring. This is the bandwidth issue of PoE switches.
The last thing to say is that since a PoE switch is a power supply device, it definitely involves power supply. If the power supply is too small, it will not be enough to drive the camera.
The center of the article is how to improve the stability of the use of PoE switches. In fact, it is very simple: good quality network cables, high-performance PoE switches, suitable power supply distances, and suitable power supply models.
Everything is not 100% advantageous. PoE switches are no exception. No matter how popular it is in network monitoring, it also has its shortcomings.
The above mentioned power supply distance can not exceed 100 meters is one, there is one is the power supply, if the total power of the equipment that needs to supply power (the camera with infrared light plus the power of infrared light) exceeds 30W, it is not suitable to use PoE power supply mode.
I want to say, man, do you really understand PoE switches?
No denying that the PoE switch is actually unstable in reality, but it has nothing to do with the PoE switch itself. It is related to improper use.
What is improper use? The quality of the selected network cable is poor, the power supply distance is too long, the poor PoE switch, and the PoE switch selection is not suitable.
The PoE-powered carrier is a network cable. The quality of the network cable is directly related to the success or goodness of PoE power supply. This is followed by driving to a place where it is found that roads are built, roads are blocked, or the entire road surface is pitted. The result is that it is either unable to arrive or is even reluctant to arrive.
Although PoE power supply is convenient and flexible, the linear distance of power supply cannot exceed 100 meters. There are both power and data signals in the network cable. The power signal does not have a distance limit. It can go to 200 meters or 500 meters, but the data transmission is not enough. It has losses, and the greater the distance, the greater the loss. In order to guarantee the best video picture effect, according to the data transmission standard, the distance of PoE power supply cannot exceed 100 meters.
There is also a very important factor: PoE switch selection is not appropriate, that is, the quality of the selected PoE switch does not pass, or the model selection is wrong.
It is the idea of ​​many people that maps are cheap, and they always want to achieve a goal at the lowest cost. In a medium-to-large-scale monitoring project, or in places where monitoring requirements are very high, selecting an unknown small manufacturer's PoE switch may cause problems because the quality and performance of products cannot be 100% guaranteed.
Before a customer is such a situation, compared several companies, and finally chose a PoE switch with the lowest price, I feel that since they are all PoE switches, it is certainly able to supply power, good or bad is no difference. As a result, the supply of electricity was unstable first, and then it directly went on strike. I later found me and advised him to replace a good PoE switch. Later, he turned to Feng Runda's PoE switch for the specific situation of the project, and the problem was solved.
In addition, although a better PoE switch is selected, it may not be possible to select a wrong type of PoE switch. For example, where a full Gigabit PoE switch should be used, a 100M or 100K mixed PoE switch is used, which may cause data transmission delays, jams, and loss to occur, failing to achieve the best effect of monitoring. This is the bandwidth issue of PoE switches.
The last thing to say is that since a PoE switch is a power supply device, it definitely involves power supply. If the power supply is too small, it will not be enough to drive the camera.
The center of the article is how to improve the stability of the use of PoE switches. In fact, it is very simple: good quality network cables, high-performance PoE switches, suitable power supply distances, and suitable power supply models.
Everything is not 100% advantageous. PoE switches are no exception. No matter how popular it is in network monitoring, it also has its shortcomings.
The above mentioned power supply distance can not exceed 100 meters is one, there is one is the power supply, if the total power of the equipment that needs to supply power (the camera with infrared light plus the power of infrared light) exceeds 30W, it is not suitable to use PoE power supply mode.
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