Method and apparatus for data transmission in the wavelength-division multiplex method in an optical ring network

摘要

Method for data transmission in a bi-directional working channel between a plurality of terminals of an optical ring network having a protection means that, given a disturbed data transmission, sets up a protection connection in the wavelength-division multiplex method in a working channel via the undisturbed section of the ring network in a single bi-directional protection channel that has at least the transmission capacity of the working channel.