Commonly known as Class 4 PoE, higher-Power PoE, and Type 4 PoE offers the highest power capabilities of all PoE types currently in existence. This PoE type helps satisfy the growing power requirements of network devices and IoT.For example, a four-port PoE hub will have four data-in interfaces and four PoE interfaces. Each PoE interface requires a data connection with the corresponding data inside. A four-port PoE hub will require four data ports from the network switch.PoE Types and Power Levels
| Name | IEEE Standard | Max. Power per Port |
|---|---|---|
| PoE | IEEE 802.3af | 15.4 W |
| PoE+ | IEEE 802.3at | 30 W |
| PoE++ | IEEE 802.3bt (Type 3) | 60 W |
| PoE++ | IEEE 802.3bt (Type 4) | 100 W |
What is Type 3 PoE power : PoE Types and Power Levels
Type 3 is also called 4-pair PoE, 4PPoE, PoE++, or UPoE. It provides 60 W of power per port and is ideal for video conferencing equipment, multi-radio wireless access points, PTZ cameras, and building management devices.
How many watts is Class 4 PoE
Standard implementation
| Property | 802.3af (802.3at Type 1), PoE | 802.3bt Type 4, 4PPoE or PoE++ |
|---|---|---|
| Power available at PD | 12.95 W | 71.3 W |
| Maximum power delivered by PSE | 15.40 W | 90 W |
| Voltage range (at PSE) | 44.0–57.0 V | 52.0–57.0 V |
| Voltage range (at PD) | 37.0–57.0 V | 41.1–57.0 V |
What is the difference between Type 3 and Type 4 PoE : Type 3 PoE delivers 60W from the power sourcing equipment (PSE) for up to 51W input power at the powered device (PD) and Type 4 PoE delivers 90W from the PSE for up to 73W input power at the PD.
PoE++ (802.3bt) provides up to 60 watts of power to each port in Type 3 and up to 100W on each PoE port in Type 4. This is significantly higher than the power provided by PoE (802.3af) and PoE+ (802.3at), which provide up to 15.4 watts and 30 watts of power, respectively.
Standard implementation
| Property | 802.3af (802.3at Type 1), PoE | 802.3bt Type 4, 4PPoE or PoE++ |
|---|---|---|
| Power available at PD | 12.95 W | 71.3 W |
| Maximum power delivered by PSE | 15.40 W | 90 W |
| Voltage range (at PSE) | 44.0–57.0 V | 52.0–57.0 V |
| Voltage range (at PD) | 37.0–57.0 V | 41.1–57.0 V |
What is the difference between PoE Class 3 and Class 4
Type 3 delivers 600mA and up to 60W at the PSE, while Type 4 delivers 960mA and up to 90W at the PSE, depending on the PoE Class. As previously mentioned, PoE Standards are backward compatible, so Type 1 or Type 2 devices can be attached to a Type 4 PoE network without trouble.PoE++ (802.3bt) provides up to 60 watts of power to each port in Type 3 and up to 100W on each PoE port in Type 4. This is significantly higher than the power provided by PoE (802.3af) and PoE+ (802.3at), which provide up to 15.4 watts and 30 watts of power, respectively.