Controller with automatic protection switching function using central processing unit in 2.5GBIT / S synchronous optical transmitter

摘要

The present invention adds a central processing unit to the unit (ADCU) that controls Add / Drop / Through in 2.5 Gbit / s synchronous optical transmission device, so that the automatic protection switching function is prevented even when an error occurs in the network line. An automatic protection switching controller is provided. If an abnormality occurs in the main process unit (MPU) or the optical line, the CPU in the ADCU (the unit that controls Add / Drop / Through) is Receive a warning signal from an optical transmitter / receiver, interpret the warning signal, and transmit the path switching information to a Field Programmable Gate Array (FPGA) as the interpreted content. An automatic protective switching controller for controlling.