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PoE Standards Explained: 802.3af, 802.3at, 802.3bt PoE++

PoE Standards Explained: 802.3af, 802.3at, 802.3bt PoE++

Compare PoE standards 802.3af (Type 1), 802.3at (PoE+) and 802.3bt (PoE++): per-port watts, power classes, cable loss and switch budget planning.

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