Protect your uptime, protect your tranquility!
So what exactly happens if there is a problem with one of your power sources? Here’s a quick example: you have 24V on the DC jack, 48V on the 2-pin connector, and 57V on the PoE-in. The board itself gets powered by the highest voltage input – the PoE-in. If there’s a problem, RB5009 will fall back to the second highest voltage – the 2-pin connector. And if that fails – there’s the 24V option on the DC jack.
What about the PoE-out devices? Once again – the highest voltage wins. PoE-out devices will draw power from the 48V source on the 2-pin connector. If that fails – the 24V on the DC jack come into play. The board will always reserve 20 watts to power itself. If there is not enough power for all the PoE-out ports, it will start disabling the ones with the lowest priority. You can set the port priority manually.