Power over Ethernet (PoE)

Power over Ethernet (PoE)

1. #PoE (IEEE 802.3af):
⮞Power Delivery: Up to 15.4 watts per port.
⮞Voltage: 44-57V, typically 48V.
⮞Max Current: 350mA.
⮞Usage: Suitable for low-power devices such as IP cameras, VoIP phones, and simple wireless access points.

2. #PoE+ (IEEE 802.3at):
⮞Power Delivery: Up to 30 watts per port.
⮞Voltage: 50-57V, typically 53V.
⮞Max Current: 600mA.
⮞Usage: Supports devices requiring more power, such as PTZ (Pan-Tilt-Zoom) cameras, advanced wireless access points, and video phones.

3. #PoE++ (IEEE 802.3bt) Type 3:
⮞Power Delivery: Up to 60 watts per port.
⮞Voltage: 50-57V.
⮞Max Current: 600mA per pair (using 4 pairs).
⮞Usage: Ideal for high-power devices like multi-band wireless access points, ⮞LED lighting, and advanced IP cameras with heating or cooling elements.

4. #PoE++ (IEEE 802.3bt) Type 4:
⮞Power Delivery: Up to 100 watts per port.
⮞Voltage: 50-57V.
⮞Max Current: 960mA per pair (using 4 pairs).
⮞Usage: Suitable for very high-power devices such as video conferencing systems, building management devices, and high-end PTZ cameras with multiple sensors.

#Key Differences:
⮞#Power Capacity: PoE+ and PoE++ standards provide significantly more power than standard PoE, making them suitable for more demanding devices.
⮞#Application Scope: The higher the PoE standard, the more complex and power-hungry devices it can support.
⮞#Cabling: All PoE standards typically use Cat5e or higher Ethernet cables, but PoE++ might require Cat6 or better for optimal performance.

Choosing the Right PoE Standard:
⮞#Device Requirements: Match the PoE standard to the power requirements of your devices.
⮞#Future-Proofing: Consider using PoE+ or PoE++ if you plan to add more power-intensive devices in the future.
⮞#Infrastructure: Ensure your network switches or injectors support the required PoE standard.

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Source: LinkedIn

Credits: Mr. Sujith CM