i believe they're simply powered by the electric conductors bundled with the cable the extra interesting part i think is how they amplify the signal without ha

i believe they're simply powered by the electric conductors bundled with the cable the extra interesting part i think is how they amplify the signal without having to decode it, just optically https://en.wikipedia.org/wiki/Submarine_communications_cable#Optical_telecommunications_cables:~:text=Repeaters%20are%20powered https://en.wikipedia.org/wiki/Submarine_communications_cable...