PoE power adapters have been widely used in the industry, ranging from electrical ports to optical ports, 100M to 10G, managed and unmanaged, etc., and various ports are different. To choose a suitable PoE power adapter, you need to comprehensive consideration. In a huge video surveillance system, it is necessary to integrate the number of cameras, camera resolution, bit rate, frame number and other parameters to select the PoE power adapter. In the process of video surveillance, data packet loss and unstable power supply of the device will directly lead to the phenomenon of blurred screen and freeze on the monitoring screen. There are many reasons for this, and today we will find solutions from these reasons;

Point 1: The PoE power adapter is misconfigured! Everyone knows that the transmission distance of the PoE power adapter can reach 100 meters, but at the construction site, in order to ensure stable data transmission, experienced engineers will choose a distance of no more than 80 meters. When the transmission distance reaches 90 meters, 100 meters or more, the data transmission will be greatly reduced, and even packet loss will occur. To solve this problem, the PoE power adapter configuration should select the fiber port – Gigabit transmission. The optical fiber port transmission distance of innovative Lianjie PROCET's industrial-grade optical fiber PoE power adapter is 50KM, which directly breaks the transmission limit of 100 meters and ensures that the video data is transmitted from the field to the control center without reducing the signal quality.

The second point: PoE power adapter power selection is wrong! When choosing a PoE power adapter for a camera, the total power of the power supply is a very important indicator. If the power is low, the device will not work normally, resulting in unstable power supply. The solution is to configure the IEEE802.3af standard PoE power adapter when the camera power is 12W max. If the HD dome power is 30W max, the IEEE802.3at standard PoE power adapter must be used. No matter how high the power is, the IEEE802.3bt standard must be considered.



Reviewing Editor: Tang Zihong

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