I'm wondering if it's possible to drive 50W via PoE (cat 6e or cat 7) single cable? I want to power up a quite hungry ARM board, which has power rating of 5V 3A (15W) and a camera, which needs 12V 2.5A (~36W), so it will be a total of 50W power. I was thinking of driving 48V 1.1A via the cable and use two DC-DC step down converters, one for camera and the second one for the board. Cable length shouldn't be more than 10m, so power loss is neglectable. Am I overthinking this too much and standalone power cable will be an easier/safer solution?
Thanks everyone. I was unaware of special PoE equipment for network and power on the same rail, and since I'm going to use gigabit ethernet, it really seems that standalone 48V cable would be a better solution.