PoE Causes and solutions for unstable power supply include incorrect configuration, incorrect power selection, long distance, and quality problems.

Configuration errors:

The configuration of the PoE power adapter and switch is essential to ensure a stable power supply. For example, although the transmission distance of the PoE power adapter can reach 100 meters, in order to ensure stable data transmission, the best practice is not more than 80 meters. Beyond this distance, data transmission may be greatly reduced, and even packet loss may occur. The way to solve this problem is to choose optical fiber ports-gigabit transmission, such as the industrial grade optical fiber PoE power adapter of the innovative Linjie PROCET company, whose optical fiber port transmission distance can reach 50KM, to ensure the quality of video data transmission.

Power selection error:

When choosing the right PoE power adapter for the camera, the total power supplied is a key metric. The device cannot work properly and the power supply is unstable. The solution is to choose the appropriate PoE power adapter standard according to the power of the camera, such as the 12W max camera should be configured with the IEEE802.3af standard adapter, and the HD ball machine 30W max needs to choose the IEEE802.3at standard adapter.

The distance is too long:

although the power transmission distance of the PoE switch can reach 100 meters, in order to ensure the video effect, the best practice is not more than 80 meters. Beyond this distance may result in poor transmission and even packet loss. Choosing high-quality network cables and high-performance PoE switches, as well as maintaining appropriate power supply distance and model selection, is the key to solving this problem.

Quality problems:

The use of poor quality PoE switches may lead to video transmission problems, and instability is inevitable. When choosing a PoE switch, you should try to choose a brand with certain visibility and professionalism to avoid quality problems.

Check whether the PoE module of the camera is powered on or broken

If the PoE module cannot be powered, use a DC adapter with the correct output voltage to power the camera. Make sure the DC/AC adapter is available. In general, the adapter has an indicator light that can be used to determine whether power is being supplied. Some network cameras with DC/AC power ports support DC12V/2A and AC24V /3A power supplies. Ensure that the adapter specifications are consistent with those of the camera.

In summary, to solve the problem of PoE power supply instability, it is necessary to comprehensively consider and optimize the configuration, power selection, distance control , product quality,PoE module of the camera and so on.