Underwater cable electrical energy feed line switching having command signal optical communications signal placed and switching energy line feeds following command.

摘要

The feed line switching method has electrical energy sent to a number of lines and repeaters for a number of fibre optic transmissions with a branch point (4) delivering electrical energy for the transmission of optical communications signals. The process has the steps of superimposing a command signal on the optical communication signal, and connecting a feed line connection amongst the total number of feeds following the command signal to switch an electrical energy feed line connection.