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4 pair power over Ethernet (4PPoE)

4 Pair Power over Ethernet (4PPoE) is a method for Power over Ethernet (PoE) over four wire pairs. This Ethernet standard was developed by the IEEE working group 802.3bt

and uses four wire pairs and is also known as PoE++. The powers for

thePowered Devices (PD) depend on the type and class classification. For 802.3bt, there are Types 3 and 4 and Power Classes 5, 6, 7, and 8. For Power Sourcing Equipment (PSE), the power ratings are 45 W for Type 3 Power Class 5, 60 W (3/6), 75 W (4/7), and 90 W (4/8). The power values arriving at the Powered Devices (PD) are about 10% to 20% lower due to losses in the transmission lines and connectors. Maximum current ratings are 500 mA (3/5), 720

mA (4/7), and 860 mA (4/8), and operation requires mutual identification of the 4-pair operation.

The 4PPoE technology supports all Ethernet technologies that work with four wire pairs, such as 10GBase-T.

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Englisch: 4 pair power over Ethernet - 4PPoE
Updated at: 22.02.2020
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Translations: DE