Quote:
Originally Posted by Daniel_LaFleur
802.3af is an industry standard that uses ~48vdc, supplies 15.4w, and uses as a minimum cat3 cable
802.3at is an industry standard that uses ~52vdc, supplies 30w, and uses a minimum cat5 cable.
"18-24v POE" is non standard. It will only work with devices specifically designed for it and will probably burn up if used with standard PoE. Use at your own risk.
Back to the OPs post: I would not use PoE on a mobile robot because the RJ45 connector is not robust enough for the vibration our robots see.
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I agree, but I still believe it's better than a standard barrel jack connector. Also, using passive injectors seems to be much easier than dealing with the af standard. The cable length we're talking about here is ~5 ft max which
equates to ~0.4 V drop @ 1 A load. Passive injection is perfectly suited for this.