The optical module is faulty or not securely installed. This article summarizes several solutions for using optical modules with switches and common problems encountered during usage, along with specific solutions. Remove the dust plug from an optical port. Ensure that the optical module is correctly oriented and. BlazingFast Photonics delivers high-speed optical transceivers, silicon photonics, co-packaged optics, OSFP 1. 6T modules, laser drivers, TIAs, DFB lasers, VCSEL arrays, and LPO solutions for data cent. Important switch performance parameters to consider when searching for fiber optic switches. Based on typical issues encountered with optical modules in daily switch applications, this document summarizes basic troubleshooting steps for resolving common faults: 1. Switchshow does not have any output.