Huawei CN21SDMC0 T8280/T8290 Telecom System Card / Module

The Huawei CN21SDMC0 is a Shelf Data Module (SDMC) used within the Huawei T8280 and T8290 ATCA-based telecom platforms, identified in Huawei parts documentation under material code 03030DJB and also referenced under the alternate designation KWAD000SDM00. The SDMC handles shelf-level data management functions within the ATCA chassis, coordinating communication and status/data distribution between the boards installed in the shelf so that the platform’s management software can monitor and control the hardware as a coherent system. The T8280 and T8290 are Huawei’s carrier-grade ATCA (Advanced Telecommunications Computing Architecture) platforms, used as a hardware base for various Huawei core network and service applications, and rely on shelf management components such as the SDMC to keep the chassis operating reliably. As an infrastructure/shelf-management board rather than a service-facing card, the CN21SDMC0 is typically sourced as a spare or replacement part to maintain existing T8280/T8290 deployments. Tech-Star (UK-based, shipped worldwide) can source this Huawei T8280/T8290 shelf management board, enquire for stock and compatibility confirmation.