First, inspect the optical module appearance for physical damage, cracks, missing components, poor solder joints, or burn marks. An optical module is a critical component in modern optical communication systems, directly affecting transmission stability, network reliability, and operational efficiency. However, during installation and daily operation, various issues may arise. These compact, hot-pluggable optical transceivers allow network engineers to flexibly select different transmission media. Have you ever dealt with sudden network drops from faulty optical modules? Issues like this cannot only break communications, but they can really jeopardize business continuity.