Fiber Optics
The switch in the Fellowship Hall, and by extension, the entire Fellowship Hall, connect to the Sanctuary, and the internet, via a fiber optic cable run between the two buildings.
The cable has 6 strands of OM3, and it should theoretically be capable of up to 100gbps, though it likely won't ever see those speeds due to cost and anything over 10gbps being totally unnecessary for now and the coming years.
It runs from the Dream Machine, into the Sanctuary Attic, across the top of the stairwell closest to the Fellowship Hall and onto the outside of the building in a conduit which then meets up with the solar conduit. The cable then travels to the Fellowship hall in the solar conduit, splits off near the Youth Room door, and joins the cell tower infrastructure travelling onto the roof and then into the janitor's closet where it connects with the Fellowship Hall's backbone switch.
At either end, it terminates into boxes for a total of 3 LC connections, only one of which is in use currently.
Installation was carried out by Ring and Ping, who also added several ethernet lines to the Fellowship Hall for access points in the SS rooms and main hall area.
A picture of the fiber box in the Sanctuary Building. The Fellowship hall box is a 1U rackmount unit which is in the rack with the network switch.
The scary Danger sticker is there mostly to discourage opening and damaging the fiber inside. While the fiber does have lasers shooting through it, inside, it's in individual strands which are tiny, about as thick as thread, and super fragile. If broken, we have to call out someone with the specialized fiber tools to fix them.