Finalized the inverter plugs and all my stuff is running on inverter now. Yay! Ready for power outage season lol. Full dual conversion power to my TV, workstation and ONT. ONT was fine on a regular UPS but had a long cord strung into the ceiling to get to the PDU so it was kind of dirty so have an outlet right there now.
The plugs go to an inlet at the rack where an extension plugs into the inverter. Eventually I want to rewire the ONT to a 12v adapter and get rid of that big UPS box and shelf. I actually took the battery out, since it was dying every couple years and only lasted an hour anyway so it was just easier to plug it into the big UPS.