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    Troubleshooting for DDM abnormalities in optical modules

    Post time: Jul-19-2022

    When the interface of the installed optical module fails to work properly, you can troubleshoot the problem according to the following three methods:

    1)Check the Alarm information of the optical module. Through the alarm information, if there is a problem with reception, it is generally caused by an abnormality in the opposite port, optical fiber, or transit equipment; you can test the optical power, replace the optical fiber cable, and wipe the end face. If there is a transmission problem or abnormal current and voltage, check the local port.

    2)Check whether the receiving and transmitting optical power values of the optical module are within the standard range. You can also run the command “show interfaces transceiver detail” to check whether the receiving/transmitting optical power of the optical module is normal and whether other parameters are within the threshold range; Whether the parameters such as bias current are normal.

    3)Check whether the optical module itself is faulty or the adjacent device or the intermediate connection link is faulty. Ports, optical modules, etc. can be replaced for cross-validation.

    If the above three steps are completed and still cannot be confirmed, you can contact our technical support personnel for technical assistance

    The above is an explanation of the abnormal DDM knowledge of optical modules brought to you by Shenzhen HDV photoelectric Technology Co., Ltd. The module products produced by the company cover optical fiber modules, Ethernet modules, optical fiber transceiver modules, optical fiber access modules, SSFP optical modules, and SFP optical fibers, etc. 

    All of these above module products can provide support for different network scenarios. A professional and strong R&D team can help customers with technical issues, and a thoughtful and professional business team can help customers get high-quality services during pre-consultation and post-production work.  Welcome you to contact us for any kind of inquiry. 

    How to Troubleshoot A Fiber Optic Transceiver, How to check and solve the optical module failure, Troubleshooting for DDM abnormalities in optical modules,



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