Power over Ethernet
The desire to be able to be online everywhere has been growing since before yesterday. The use of tablets, for example, requires - both privately and commercially - ever better and greater "illumination" of buildings or even a site with WLAN. So more and more access points are needed, and these have to be installed in increasingly exposed locations. But what happens if there is no power connection available? And if this can be realised at best with great effort or not at all?
Another scenario comes from the security and surveillance of a building or site. IP cameras must always be placed in locations that are not connected to the power grid.
The solution for these cases is always the same and it is called: Power over Ethernet, or PoE for short. With this technology, power is brought to the place where it is needed via a data line. With current standards, up to 15.4 W (IEEE 802.3af) or even up to 30 W (IEEE 802.3at, often called PoE+) power can be brought to the device to be supplied.
This is often done via network switches that support PoE, also called PoE switches.
Alternatively, a PoE injector can be looped in between the switch and the end device, which brings power to the cable to the end device in addition to the data. If several connections are to be supplied with PoE in this way, this can be done via a multi-port injector or PoE midspan.
If the end device cannot use the transmitted power because it is not PoE-capable, a so-called PoE splitter is used, which separates data and power again and brings both to the end device on separate lines.
Take the opportunity to test PoE in practical use. We offer PoE products in ROLINE quality at a good price!
Do you have any further questions about the devices on offer or about other topics relating to Power over Ethernet? Just give us a call, we'll be happy to help you.