NETWORK COMPONENT FOR AN OPTICAL NETWORK COMPRISING AN EMERGENCY OPERATION FUNCTION, ESPECIALLY FOR AN OPTICAL NETWORK IN RING TOPOLOGY

摘要

The device has a coupler for optically coupling to the network with a receiver module for converting optical data into electrical data and a transmitter module for converting electrical data to optical data, data processors coupled to the receiver/transmitter modules and each other, a network status detector and a device for changing the first data processor input between the receiver module and second data processor output depending on status. The device (3d) has a coupler (2) for optically coupling to the network (1) with a receiver module (4) for converting optical network data into electrical data and a transmitter module (5) for converting electrical data to optical data, data processors (8,9;10,11) unidirectionally coupled to the receiver and transmitter modules and to each other, a network status detector and a changeover device (23) for changing the input of the first data processor between the receiver module and the output of the second data processor depending on the network status.