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近日，思科公司在中国推出新一代DWDM系统ONS15808。它通过拉曼放大器、梳状滤波器等新技术大幅提高了系统容量和传输距离，同时降低了运营成本。ONS15808可同时支持大系统波数（160波）、常规长距离传输和亚超长距离传输，用户可根据实际需求设定传输距离；不同种类、不同速率
Recently, Cisco introduced a new generation of DWDM ONS15808 in China. It significantly increases system capacity and transmission distance with new technologies such as Raman amplifiers and comb filters, while reducing operating costs. ONS15808 can support large system wave number (160 wave), conventional long-distance transmission and sub-long distance transmission, the user can set the transmission distance according to actual needs; different types, different rates