This is a quick and simple project that is a bit old but still always a delight to see. Who doesn’t love staring at those high voltage sparks moving upwards again and again on the background of a mad scientist’s laboratory? Since we have a few high voltage transformers around here, I thought I could make a Jacob’s Ladder as a last minute project to add to the ones that would be presented on the Open Day.
Power over Ethernet or PoE, is the technology used for power transmission in network equipment, via network UTP cable, together with data. PoE is useful in situations when we want to connect network devices that are far away from a power source. In this situation we take advantage of the Ethernet cable, because there are 4 pairs of wires, but for the majority of networks, only 2 pairs are used for data transmission. PoE uses 2 unused twisted pairs, for electrical transmission needed to power the device. (more…)