16-wavelength and 8-wavelength CWDM systems

Huawei NG WDM products support only 8-wavelength CWDM systems, but some optical-layer boards such as CMR2 and CMR4 support access of up to 16 wavelengths. Among the 16 wavelengths, eight are provided by NG WDM products and the other eight are provided by third-party equipment.

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