Optical module is faulty and cannot emit light
If the fault is caused by incorrect configuration or networking environment, change the configuration or networking environment. 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. Check compatibility between the optical module and switch Most switch brands have specific compatibility requirements. Whether there is obvious damage, component burned black, dehiscence, leakage, even tin or not.
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