Ensure module is fully seated, check optical power levels (Tx & Rx), replace suspect patch cord. Vendor incompatibility, outdated device firmware, incorrect module type for slot. 2) Cleaning specification: Use special wiping paper or dust-free cotton swab to wipe the end face in the same direction. Do not rub back and. Dirty connector end-face, improper insertion, module failure, port shutdown. Based on typical issues encountered with optical modules in daily switch applications, this document summarizes basic troubleshooting steps for resolving common faults: 1. Check compatibility between the optical module and switch Most switch brands have specific compatibility requirements. Customers in the use of optical modules will more or less encounter a variety of failure problems, such as optical module model selection is correct, the use of jumper is correct and some common problems, customers have the ability to judge and have a clear solution, but for some of the use of.
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