Not if the "safe" side is on the clean power setup, the idea is to have a seperate power solution for the switches, routers and other equipment. So you plug your fibre converter and all that in on the safe circuit.
How is it put on another circuit? That 'other' power source must be from some other transformer on some other street. Obviously that is not possible. No separation exists when both power circuits are from the same mains box, same safety ground, and same AC utility.
The naive assume protection in terms of what is adjacent. Protection is about the entire structure, all wires incoming to that structure, and earth ground beneath and around that structure. If perspective is less than that, then basic concepts for protection and electricity have not been learned.
An inspection must include numerous other electrical conductors including pipes, bricks, ducts, linoleum tile, wood studs ... yes all are also electrical conductors. As is made obvious when taught what Ben Franklin demonstrated in 1752. A surge was connected to earth by an electrical conductor - a wooden church steeple.
Any solution that claims to block or isolate a surge is bogus. That isolation is only supplemental. It works when a primary and well proven solution is first implemented. Even telcos using fiber optics still use this other solution that also makes copper wire surges irrelevant.
Ubiquiti solution uses this well proven solution IF other and most critically important conditions are meet. Using technology well proven by over 100 years of science and experience. A fiber optic solution also needs that solution. For many reasons. Including a reality - power to both ends connect to a same power source even if both are via separate breakers.
If a well proven soution is implemented, then other concerns such as WAN/LAN, etc are also solved. But again, a proven solution means viewing in terms of the entire structure, every incoming cable, and surrounding ground.
