ROADM and its application scenarios

The ROADM technology achieves reconfiguration of wavelengths by adjusting the pass-through or block status of the wavelengths, making the static distribution of wavelength resources flexible and dynamic.
ROADM with the U2000 can remotely and dynamically adjust the status of wavelength adding/dropping and passing through for a maximum of 80 wavelengths. Huawei ROADM technology can be applied to the following scenarios:
1-degree optical-layer grooming: Generally it applies to a terminal node and services are not interrupted during expansion.
2-degree optical-layer grooming: It achieves service transmission in two directions.
3-degree optical-layer grooming: It achieves service transmission in three directions.
4-degree optical-layer grooming: It achieves service transmission in four directions.
9-degree optical-layer grooming: It achieves service transmission in nine directions.

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