[Kajer] was doing some work with IP phones that use Power over Ethernet. While trying to get this to work with a network switch he decided to use PoE to power the switch itself. The best thing ...

to power devices such as webcams. Buy a PoE router or switch, plug in a cable, and away you go! But what lies behind PoE, and how does it work? [Alan] has written a comprehensive guide ...

Provides a 24V DC output to power the strobe light in Aiphone’s wall boxes and towersThe IX Series emergency stations have a ...

The output can optionally be switched to 12V which can be useful for supplying power to external loads such as 12V relays. Features: Adds 802.3af-compliant Power-over-Ethernet "PD" (powered device) ...

Additional switches become automatic Ethernet boosters, as every transmitted output gets ... transmits electrical power to remote devices such as security cameras (see PoE). Gigabit switches ...