Fiber

The Evolution of PoE

Power over Ethernet (PoE) was first introduced in 2003 via 802.3af. This technology (also referred to as Type I) allowed power sourcing equipment (PSE) to transmit up to 15.4W of power to a powered device (PD) via twisted pair cabling (Category 5e). The powered device (PD) was assured to be 12.95W due to losses along the maximum channel length of 100 meters.

Read the source article at Berk-Tek – Nexans

Categories: Fiber, SCN

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