The Huawei 03030QLW TN16FIU01 is a Fiber Interface Unit FIU board used in the Huawei OSN 9800 series equipment. This board is specifically designed to provide fiber interface capabilities and manage optical signals in the OSN 9800 platform. The Huawei 03030QLW primary function of the TN16FIU01 board is to handle the transmission and reception of optical signals over fiber optic cables. It supports a range of optical transmission rates and protocols, enabling connectivity between various network elements and the OSN 9800 platform.