Power over Ethernet Devices
1. Giới thiệu
– Definition of Power over Ethernet (PoE)
– Explanation of its benefits and applications
2. PoE Standards
– IEEE 802.3af (PoE)
– Power output of 15.4 watts per port
– Most commonly used standard
– Supports up to 100 meters of cable length
– IEEE 802.3at (PoE+)
– Power output of 30 watts per port
– Supports higher-power devices, such as IP cameras or Wi-Fi access points
– Supports up to 100 meters of cable length
3. PoE Devices
– IP Phones
– Ability to connect directly to the Ethernet network without needing a power outlet
– Simplifies installation and reduces clutter of power cords
– Wireless Access Points
– Provides power to access points while also transmitting data signals
– Enables flexible deployment of Wi-Fi networks without the restriction of power outlets
– IP Cameras
– eliminates the need for separate power cables
– Allows for easy installation and repositioning of cameras
– Provides uninterrupted power supply for continuous surveillance
4. PoE Switches
– Role of PoE switches in delivering power to PoE devices
– Different types of PoE switches based on power output and number of ports
– Features to consider when selecting a PoE switch, such as power budget and management capabilities
5. Installation and Safety Considerations
– Proper installation guidelines for PoE devices
– Ensuring compatibility between PoE switch and PoE devices
– Understanding power and cable length limitations to avoid performance issues
6. Phần kết luận
– Summary of the advantages of Power over Ethernet devices
– Growing popularity of PoE technology in various industries
– Potential future developments in PoE technology for even higher power delivery
