Shimen yingsheng electronic guide POE standard: I19926430038

Power over Ethernet (PoE, Power over Ethernet) technology simplifies the installation of equipment by transmitting both data and power over a network cable.The PoE standard is defined by the IEEE and consists of the following major versions:

1. IEEE 802.3af (PoE): provides up to 15.4W of power, with the Powered Device (PD) receiving approximately 12.95W.

2. IEEE 802.3at (PoE+): Increases the power supply capacity to 30W, and the PD can obtain about 25.5W.

3. IEEE 802.3bt (PoE++): further extended into Type 3 and Type 4, with maximum power supply capacity of 60W and 90W, respectively, and the PD can obtain about 51W and 71.3W.

When designing a PoE network transformer, you need to ensure that it meets the applied PoE standards, especially the current carrying capacity and

 insulation requirements. For example, the IEEE 802.3bt standard requires that the transformer be able to handle higher currents and have good 

thermal performance. citeturn0search0Power over Ethernet (PoE, Power over Ethernet) technology simplifies equipment installation by 

simultaneously transferring data and power over a network cable.The PoE standard is defined by the IEEE and consists of the following

 major versions:

1. IEEE 802.3af (PoE): provides up to 15.4W of power, with the Powered Device (PD) receiving approximately 12.95W.

2. IEEE 802.3at (PoE+): Increases the power supply capacity to 30W, and the PD can obtain about 25.5W.

3. IEEE 802.3bt (PoE++): further extended into Type 3 and Type 4, with maximum power supply capacity of 60W and 90W, respectively, and the PD can obtain about 51W and 71.3W.

When designing a PoE network transformer, you need to ensure that it meets the applied PoE standards, especially the current carrying capacity and insulation requirements. For example, the IEEE 802.3bt standard requires that the transformer be able to handle higher currents and have good thermal performance.

Domestic network transformer manufacturers, such as Suzhou Wohu Electronic Technology Co., Ltd, offer IEEE 802.3-compliant products that 

support different PoE ratings (e.g., PoE, PoE+, PoE++) and meet environmental requirements, such as RoHS. citeturn0search4 Power over 

Ethernet (PoE, Power over Ethernet) technology transmits both data and power over the network cable, simplifying equipment installation.

The PoE standard is defined by IEEE and consists of the following main versions:

1. IEEE 802.3af (PoE): provides up to 15.4W of power, with the Powered Device (PD) receiving approximately 12.95W.

2. IEEE 802.3at (PoE+): Increases the power supply capacity to 30W, and the PD can receive about 25.5W.

3. IEEE 802.3bt (PoE++): further extended into Type 3 and Type 4, with maximum power supply capacity of 60W and 90W, respectively, 

and the PD can obtain about 51W and 71.3W.

When designing a PoE network transformer, you need to ensure that it meets the applied PoE standards, especially the current carrying capacity and insulation requirements. For example, the IEEE 802.3bt standard requires that the transformer be able to handle higher currents and have good thermal performance.

Domestic network transformer manufacturers, such as Suzhou Wohu Electronic Technology Co., Ltd, offer IEEE 802.3-compliant products that support different PoE ratings (e.g., PoE, PoE+, PoE++) and meet environmental protection requirements such as RoHS. citeturn0search4

 When choosing a domestic PoE network transformer, you should make sure that it meets the relevant standards and application requirements based on factors such as the power demand of the device, the operating temperature range and the physical size.

POE Difference between standard electrical performance parameters

The POE standard specifies the electrical parameters of PSE devices and PD devices in detail, and devices complying with the POE standard must meet these electrical parameters, or else there may be incompatibility problems between PSE devices and PD devices. The following table lists some of the important parameters given in the standard.