The optical module is faulty. SmartAX MA5680T: Access product manuals, HedEx documents, product images and visio stencils. Get your solutions if you have met some problems. Explore the essential query commands for efficiently managing and troubleshooting the Huawei MA5680T, a versatile and robust telecommunications access platform. Learn how to retrieve vital information, configure settings, and diagnose network issues using these commands. Indicates the MIB object ID of the alarm. Does anyone have any troubleshooting suggestions for this device? Here's what I've checked so far: In case it matters, here are. Description: Original Huawei optical line terminal for FTTx networks, supporting GPON/EPON, IPTV, VoIP, and enterprise services. The Huawei OLT MA5680T is a large-capacity optical line terminal widely deployed in FTTx networks.