WaveStar OLS 1.6T DWDM system of Alcatel Lucent may support 10Gbit/s signal to the most of 160 groups on the C band and the L band

used popularly by domestic telecom business operator. The C band 80×10Gbit/s system distributing to South-costal skeleton-line of China Telecom

already approached full disposition at present and partial paragraphs had disposed completely

was one of the most high speed transmission systems actually completed in our country till now. Warning of the OLS 1.6T greatly differ from other equipments

particularly involved with OTU warning. Therefore mastering the OTU warning is very important to complete the maintenance of the system.