Language Selection

English French German Italian Portuguese Spanish

power over ethernet

Filed under
Sci/Tech

power over ethernet lets you add a dc voltage source to the unused pairs in your ethernet cable. this power can be used to power devices that are poe compatible by just plugging the cable into them. other devices can be powered by using a “tap” to break the dc pairs back out of the cable. poe is a good choice for powering devices in remote locations. a router can be placed on a roof right next to its high-gain antenna, reducing signal loss, without having to run a separate ac line. plugging the dc “injector” into a ups will keep dedicated voip phones functioning during a power outage. terry schmidt has written a nice guide covering the theory behind scratch building poe injectors and taps. it also has photos and descriptions of other peoples projects along with tips on how to keep from turning your router into a pile of plastic goo.

Instructions.

Source.

More in Tux Machines

Purism Librem 5 Linux Smartphone Campaign Set To End At Around $2 Million

Tomorrow marks the end of the crowdfunding campaign for Purism's Librem 5 smartphone campaign. The campaign is looking like it will close at around two million dollars with the current tally as of this morning being at $1,962,517 in funds raised for this effort to build an original GNU/Linux smartphone stack with either GNOME Shell or KDE Plasma Mobile comprising the UI/UX elements. Read more

Games: The Coma: Recut, Mushroom Wars 2 and Team Fortress 2

Wine Staging 2.19

Success! Beelink S1 Running Linux – Courtesy of the Open Source Community

We recently published a post summarizing why the Beelink S1’s hardware specs look so promising for an inexpensive Linux mini PC. But I hit a brick wall when trying to install any flavour of Linux on the machine. I simply could not get the machine to boot a live Linux distro, either from a USB DVD or USB key. I contacted Shenzhen AZW Technology Co. Ltd., the manufacturer of the Beelink S1, twice to see if they could offer any support. They replied recommending I get used to running Windows 10, as they contend Ubuntu is difficult to install on this mini PC. The second email has yet to elicit a response. I must have exhausted my support quota. Undeterred, I made a call for help to Linux enthusiasts. And half a dozen good folk promptly stepped forward to offer a simple solution, which I’ll detail below. This is one reason why I love Linux; the community. Read more