Optical fiber, Fiber Optic Networks
13-February-2021 Saturday
When the Internet was turned off at the wrong time. (watch with sound)
24-July-2020 Friday
Optical fiber in the village
05-August-2019 Monday
Fiber optic communicators. HELP HELP HELP
22-May-2019 Wednesday
Optical fishing :)
23-March-2019 Saturday
Rostelecom to a private house
03-August-2015 Monday
How fiber optic networks are arranged