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| *'''Incorrect Usage:''' Avoid mismatched voltages, incompatible devices, overloading, and improper wiring to prevent damage and ensure reliable operation. | | *'''Incorrect Usage:''' Avoid mismatched voltages, incompatible devices, overloading, and improper wiring to prevent damage and ensure reliable operation. |
| Using Passive PoE appropriately can be cost-effective and straightforward, but it requires careful consideration of device requirements and proper installation practices to avoid potential risks. | | Using Passive PoE appropriately can be cost-effective and straightforward, but it requires careful consideration of device requirements and proper installation practices to avoid potential risks. |
| + | |
| + | ==Key Differences Between Active and Passive PoE== |
| + | |
| + | ===Active PoE=== |
| + | ---- |
| + | *'''Standards:''' Follows IEEE standards (802.3af, 802.3at, 802.3bt). |
| + | *'''Power Delivery:''' Uses a negotiation process to determine and supply the correct power level to devices. |
| + | *'''Voltage:''' Typically delivers 48V DC, but can vary based on device classification. |
| + | *'''Complexity:''' More complex and sophisticated system with power negotiation and monitoring. |
| + | *'''Compatibility:''' Suitable for a wide range of devices with varying power requirements. |
| + | *'''Safety:''' Ensures safe and efficient power delivery by regulating voltage and current. |
| + | *'''Examples:''' Used in devices like IP cameras, wireless access points, and VoIP phones. |
| + | |
| + | ===Passive PoE=== |
| + | ---- |
| + | *'''Standards:''' Non-standardized, does not follow IEEE standards. |
| + | *'''Power Delivery:''' Supplies a fixed voltage (e.g., 12V, 24V, 48V) directly through the Ethernet cable without negotiation. |
| + | *'''Voltage: Fixed''' voltage delivery without adjustment based on device needs. |
| + | *'''Simplicity:''' Simpler and less expensive to implement compared to Active PoE. |
| + | *'''Compatibility:''' Limited to devices that specifically support the fixed voltage provided. |
| + | *'''Risk:''' Higher risk of damaging devices if the voltage supplied does not match device requirements. |
| + | *'''Examples:''' Commonly used in simpler devices like small access points and basic IP cameras. |
| + | |
| + | ===Key Differences Sumarry Between Active and Passive PoE=== |
| + | ---- |
| + | Active PoE is standardized, involves power negotiation for precise delivery, and supports a wide range of devices. In contrast, Passive PoE delivers a fixed voltage without negotiation, offering simplicity and lower cost but with increased risk of compatibility issues and potential device damage if not properly matched. |