The structure composition of the POE power supply module

　　A complete POE power supply module includes two parts: PSE, PowerSourcingEquipment) and the electrical end device (PD, PowerDevice). Therefore, the POE power supply module is mainly composed of the POE power supply terminal and the POE. The POE power supply module is the PSE power supply side device on the Ethernet RJ45 side POE power supply module, that is, the PSE power supply side device outputs a small voltage with a small output on the Ethernet RJ45 port, until it detects the connection of the cable terminal to a recipient that supports the IEEE802.3AF standard. Electric terminal device, according to the corresponding voltage output of the electric equipment. When multiple POE power supply modules are integrated into a power supply module box, they constitute the POE power supply box. The POE switch (integrated multiple PSE power supply end equipment) also has the function of the POE power box.

　　The POE power supply module's power module is the detection interface loop (IEEE802.3AFINTERFACE) and DC/DCConverter required for the Ethernet power (PD) power device (PD), which supports the power recognition circuit (Classification , AG8000/8100), let the bureau's battery supply device deliver appropriate power demand to improve the power consumption efficiency of the overall system. As a POE electric power module, it can provide ordinary security products with a power of not higher than 13W. Similarly, POE's electricity module can be integrated into ordinary security products (such as network cameras) to form an independent product POE network camera.

　　The POE network camera uses the POE module (including the POE power module and the POE supply module) to realize the Ethernet power supply. It has the function of the POE power module. It uses DC power provided by the power supply side device (PSE) to transmit it through the twisted wire transmission through the twisted wire transmission. To the POE network camera.

　　According to the video surveillance site environment, we can flexibly select the power supply method of the network camera: when the electricity is convenient and the cost is reasonable, the power cord is directly paved. Conversely, we can power the front -end network camera through the POE module through the PoE module. The POE power module can be independent, or it can be integrated into the network camera to form a POE network camera. Similarly, the POE power supply module can supply power to the front -end device separately. At the time of a large number of power supply equipment, the module box can be inserted. Power supply is concentrated. The entire application reflects the advantages of POE modularization.

　　POE modular product advantage: In addition to providing universal power supply support from the Ethernet cable, the POE module reduces investment expenditure, thereby reducing the cost of integrating the power -on equipment in the unified IP infrastructure. The POE module is exempted from the need to install the wall power connection for the terminal device, thereby reducing the cost of power sockets related to the support of the terminal device. It can also install network connection devices in places that are more difficult to deploy local AC power, thereby providing greater flexibility. Because the POE power module has the function of supporting power recognition circuit, when we use UPS power supply, the advantages of energy saving are more obvious.

　　The POE power supply module is still very common in life. The development of the POE power supply module also requires various research and development of security manufacturers.

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