RB5009UG+S+IN can be powered in 3 different ways:
a) PoE-in from Ethernet port #1
b) DC Jack
c) 2-pin terminal on the side
Can I use any combination of the available power options to power the RB5009UG+S+IN in case when a power source fails ?
Very good news, similarly the CRS125-24G-1S-INYes. From what I recall reading, the router will prefer the higher voltage power source and fall back to the next source should the first fail/ be disconnected.
has 2 DC inputs (DC jack, PoE-IN), can I assume that the same holds for it?