This article will guide you through the process of troubleshooting fiber optic connections, with a focus on ensuring proper TX and RX alignment and how to correctly switch patch cables to resolve issues. The actual effects of misalignment are affected by the distribution of light in the fiber (mode power. Dirty, poorly aligned, or damaged connectors are a common cause of problems in fiber optic systems. These issues can lead to high insertion loss or a complete loss of the signal. Their function is mechanical stabilization, environmental isolation, and controlled fiber management. Instead, they. Fiber optic connector assembly is an integral part of any modern network communication system. The connector was first subjected to vacuum.