Shulou(Shulou.com)06/01 Report--

In this issue, the editor will bring you about how to use the PoE switch to stabilize the power supply. The article is rich in content and analyzes and describes for you from a professional point of view. I hope you can get something after reading this article.

Although PoE switches are now highly respected, and some even say, "if you do network monitoring, use PoE switches", but there are still many people who feel that the use of PoE switches in network monitoring is unstable. Why is the contrast so big? Why is it unstable? what is the cause? Here is a brief introduction to one or two.

The PoE switch is a switch that can supply power through the network cable. Instead of the ordinary switch, it no longer needs to pull the power line, and transmits power while transmitting data with the network cable. Theoretically, it is advantageous to use PoE switch for security monitoring, such as:

Reduce cost: no more tedious power wiring, not only save equipment power construction and maintenance costs, such as power lines, sockets, pipes, etc., but also save expensive electrical costs, but also save the time needed to arrange and install the power supply system.

Flexible deployment: the location of equipment deployment is not limited, and there is no need to consider whether the power outlet is long enough. Terminal devices such as AP can be flexibly installed in any remote location, such as ceiling, partition upper position, etc.

Easy to use: basically plug and play, very convenient and fast, and support 802.3af/at standard, intelligent and safe power supply, single port maximum power up to 30W, greatly improve the network service access capacity.

Safe and reliable: centralized power supply can be carried out, and backup is convenient. At the same time, the power supply equipment can be connected to the UPS, once the main power input is interrupted, it can also ensure the normal operation of the system.

Enhanced management: PoE system with SNMP capability, which can remotely monitor and manage PD devices such as AP and IP cameras.

More secure: PoE switches belong to the category of weak power, because the power lines are saved, there is no danger of strong electricity, and there is no need to worry about the risk of leakage. And now the PoE switches are designed for lightning protection, so it ensures the security of the network camera.

In the face of so many advantages, there are still many people who think that the PoE switch is unstable for the following reasons:

The distance is not arranged well: the power transmission distance of PoE switch can reach 100m, but in practical application, in order to ensure more video effect, it is better to choose a distance of no more than 80m. If the distance used reaches 90m, 100m or more, the transmission effect is not so good, and even packet loss occurs, which leads to the instability of the PoE switch.

Quality problem of PoE switch: some friends encounter the unstable situation of using PoE switch in actual operation, which may be the quality problem of PoE switch purchased. Now there are many kinds of PoE switches, and some people choose low-quality PoE switches cheaply, which will certainly lead to video transmission problems, and instability is inevitable. When choosing PoE switches, try to choose brands that are well-known and professional, such as Fengrun Technology.

The quality of the network cable is not up to standard: we all know that the power supply of the PoE switch needs Category 5 network cable or super Category 5 network cable for transmission, and some people have bought a network cable of poor quality, which directly leads to the instability of the monitoring system.

Did not choose the right PoE switch: PoE switch from 4 to 24 ports, there are 100 megabit, gigabit, some 100 megabit with gigabit cascade port, how to choose, or choose how much bandwidth of the switch, you need a certain amount of professional knowledge. If you don't choose the right PoE switch, it's normal to be unstable.

So the reason for the instability of the PoE switch in network monitoring is not the switch itself, but other reasons, if you choose the right one, it is recommended to use the PoE switch. When using the PoE switch, be sure to choose the right model, the quality of the network cable should be high, the distance is not too far, and the power supply will basically be very stable.

The above is how to use the PoE switch shared by Xiaobian to stabilize the power supply. If you happen to have similar doubts, you might as well refer to the above analysis to understand. If you want to know more about it, you are welcome to follow the industry information channel.

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