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Active Power over Ethernet (PoE) is a technology that allows Ethernet cables to carry electrical power, along with data, to remote devices. Active PoE follows specific IEEE standards (802.3af, 802.3at, and 802.3bt) that ensure safe and efficient power delivery. Here’s a step-by-step explanation of how Active PoE works:

Active Power over Ethernet (PoE) is a technology that allows Ethernet cables to carry electrical power, along with data, to remote devices. Active PoE follows specific IEEE standards (802.3af, 802.3at, and 802.3bt) that ensure safe and efficient power delivery. Here’s a step-by-step explanation of how Active PoE works:

#'''Detection:''' The Power Sourcing Equipment (PSE) sends a small voltage to detect a compatible Powered Device (PD).

'''1.''' '''Detection:''' The Power Sourcing Equipment (PSE) sends a small voltage to detect a compatible Powered Device (PD).

#'''Classification:''' The PSE classifies the PD by sending a higher voltage to determine its power requirements.

#'''Power-Up:''' The PSE gradually increases the voltage to the required level.

'''2.''' '''Classification:''' The PSE classifies the PD by sending a higher voltage to determine its power requirements.

#'''Power Delivery:''' Power and data are transmitted simultaneously over the Ethernet cable. The PSE continuously monitors the power supply to ensure safe and #stable operation.

'''3.''' '''Power-Up:''' The PSE gradually increases the voltage to the required level.

'''4.''' '''Power Delivery:''' Power and data are transmitted simultaneously over the Ethernet cable. The PSE continuously monitors the power supply to ensure safe and #stable operation.

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===Key Points===

===Key Points===

#Proper Installation: Follow proper wiring practices and use quality cables to ensure stable power delivery.

#Proper Installation: Follow proper wiring practices and use quality cables to ensure stable power delivery.

#Avoid High Power Devices: Use Passive PoE for low power devices like small access points, cameras, or VoIP phones that are within the power capacity of the PoE injector.

#Avoid High Power Devices: Use Passive PoE for low power devices like small access points, cameras, or VoIP phones that are within the power capacity of the PoE injector.

=====Incorrect Way=====

=====Incorrect Way=====

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#Overloading: Attempting to power devices that require more power than what the Passive PoE can provide, causing inadequate performance or device failure.

#Overloading: Attempting to power devices that require more power than what the Passive PoE can provide, causing inadequate performance or device failure.

#Improper Wiring: Using substandard or incorrect wiring that can lead to power loss, instability, or even safety hazards.

#Improper Wiring: Using substandard or incorrect wiring that can lead to power loss, instability, or even safety hazards.

 

=====Use Case Summary=====

=====Use Case Summary=====

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