This paper analyzes the problem of protection switching failure in the trunk DWDM transmission system with dual path OLP(Optical Line Protection)network and OLA(Optical Line Amplifier)stations in the middle.It is believed that the interference of the optical supervisory channel light at the upstream OLA station is the main cause.By implementing an optimization and improvement plan of moving the OLP board backward and increasing the redundancy of the optical amplifier board,the system reliability is improved.
关键词
密集波分复用/光线路放大器/光线路保护
Key words
DWDM/optical line amplifier/optical line protection
维普
万方数据