25G typical dual-fiber gray optical module supports transmission distances of 300 meters and 10 kilometers, 25G SFP28 300meters multimode optical module is mainly used for interconnection under the base station tower, and 25G SFP28 10 km single-mode optical module is mainly. IPEC focuses on standardizing solutions in opt cal chips, optical/electrical components, and opt cal modules. Compare SR, LR, ER, BiDi, and CWDM types covering transmission distance, wavelength, power consumption, and application scenarios. With the full-scale deployment of 5G networks, the fronthaul network connecting AAUs. And the fronthaul transmission optical module mainly includes 25G Transceivers and 100G Transceivers two rate types, supporting hundreds of meters to 20 km of typical transmission distance, the specific technology status as shown in Table 1. The DU side of the equipment uses active WDM equipment, and the AAU side uses passive WDM plus color optical modules to form a unified management and control front-haul network, providing PC-side Web and client-side APP network management methods and high-reliab lity.
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