PoE switches

PoE support

— switches with at least one network port supporting PoE technology.

PoE makes it possible to supply power to network devices directly through an Ethernet cable. This eliminates the need to run extra wires or use rechargeable batteries/batteries, which can be especially convenient for equipment installed in remote or hard-to-reach locations (a typical example is network surveillance cameras). Ideally, such equipment should also support PoE; however, with additional devices—so-called splitters—even some devices that do not originally support this technology can be powered in this way (the main thing is that the voltage and power match the device’s requirements). The only thing to keep in mind is that different PoE standards are used today and are not always mutually compatible; ideally, the actual power output should also be taken into account.

For more information about these aspects, see “PoE standard (output)” and “PoE power (total)”; here, we will note two points. First, the number of ports supporting this technology may vary, so it should be checked separately. Second, if the switch itself has a PoE input, using this input may limit or completely disable the ability to supply power to network devices. Therefore, if you plan to use the switch as a power source as well, it makes sense to ensure that it is fully connected to a power outlet.