I have a reasonably easy query that I wasn’t in a position to find a definitive reply to on Google. Would there be any concern with connecting a system to a PoE switch by means of a PoE injector or would that trigger any problems? My gut is telling me that the switch can be sensible sufficient to know by some means that there is already power being provided and not provide any extra. My fear, nonetheless, is that the switch and injector would both supply power to the machine concurrently and presumably damage it. I suppose to present a bit context, I’ve a device that requires PoE plus (802.3at) however my switch is barely rated for common PoE (802.3af). My resolution is to connect the system by a PoE plus rated injector into the PoE change in order that it will get the required power. Does this seem like the appropriate thing to do?
PoE 802.3af (also called PoE or PoE Kind I) was ratified in 2003 and supports a maximum power consumption of 15.4W. PoE 802.3at (also known as PoE+ or PoE Kind 2) was authorized in 2009 and delivers power up to 30W. These two PoE standards are compatible with units resembling IP phones, simple IP cameras, and indoor wireless access factors. Nevertheless, with new functions such as LED lighting, good buildings, and the internet of things (IoT), there was a necessity for higher bandwidth and energy supply.
As an example of the different software necessities wanted for powered gadgets, an IP-primarily based telephone could have to be moved around inside an workplace and between cubicles a number of instances all through its life by a typical non-technical employee. In contrast an out of doors surveillance digicam will require extra environmental protections and will remain stationary after its preliminary set up by IT employees.
