This white cable is used for connection from the terminal outside to an ONT in my computer room.
Outside terminal similar to that copper junction box lower down near the ground which was used for the copper wire previously for the land line to every house.
The fibre cable follows the route similar to the old telephone cable
|splicing the glass fibres|
Great care was taken to loop the fibre cable in large circular loops. If this cable is bent the tiny glass fibre inside may be damaged and the signals will be weakened. This will affect the download speed of my computer if I were streaming movies.