The cable tech in Tulsa told me to stop hiding my ONT behind the filing cabinet and I finally get why
Last Tuesday we had a guy from the provider come out to our print shop because our card terminals kept dropping during big jobs. He took one look at the little fiber box (the ONT) wedged behind a filing cabinet next to a space heater and just laughed. He said, and I quote, 'you're cooking this thing, it needs air and it needs to be off the floor.' Moved it up on the wall bracket by the register and we haven't had a dropped transaction in 9 days. I felt pretty dumb, but also kind of annoyed nobody mentioned it at install. Anyone else get told to mount their gear somewhere specific, or is this just something I should have known?
Nine days without a drop is a good run, but I'd push back a little on the space heater being the main bad guy. Heat is one thing, but fiber boxes are way more picky about getting knocked around and bent cables than a little warmth. In a print shop you've got paper dust and toner float everywhere, and that stuff clogs the vents on the ONT faster than any heater will. I've seen gear sitting in a wide open spot still drop packets because the power cable was zip tied too tight or the fiber line got pinched behind something. Mounting it was smart, but check the vents and the cable bends too, not just the airflow.