Estamos participando en la 6° Conferencia de Gestión de Espectro en América Latina en Perú

The Wireless Battle of the Mesh is an event that aims to bring together people from across the globe to test the […]

Doing _Power-over-Ethernet_ on a Gigabit port might seem challenging at first sight: since all 4 pairs of UTP are used as data lines, there are no «spare» pairs to use exclusively for sending DC current, as in 100mbit ethernet cables.
However, it’s possible to inject (and extract) DC voltage _on the data pairs_, using *center-tapped transformers*, preserving the signal transmission intact and the gigabit speeds of the port.