Huawei TN12VA401 03030GYN VA4 it is a board or module designated for the Huawei OSN 6800 and OSN 8800 optical transmission systems.At the same time, is an Universal Transmission Resource UTR processing unit with support for 8E1/T1 interfaces. It is designed for use in the BBU3900 and BBU3910 baseband units, which are part of Huawei's mobile networking infrastructure.

The UTR processing unit plays a crucial role in providing transmission and connectivity capabilities within the baseband units. Huawei 03030GYN,it supports the processing and transport of voice and data signals over the E1/T1 interfaces, which are commonly used in telecommunications networks.

The HUAWEI TN12VA401 module is likely a specific variant or version within the TN12VA series, offering enhanced functionality and performance. It is used in combination with other boards in the OSN 6800 or OSN 8800 to provide advanced optical transmission capabilities for high-speed, long-distance, and high-capacity networking.