Ethernet Switches & Routers

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Occasional Contributor
Posts: 13
Registered: ‎01-08-2015

Rectification Notice of Faulty MOS Transistors on TN51XCS Boards?

Metal-oxide semiconductor (MOS) transistors in a lot used on TN51XCS boards intended for the Huawei OptiX OSN 8800 have a defect. Because of the defect, the noise introduced by the 12 V power supply on the TN51XCS board is out of range and interferes the signals transmitted over the adjacent high-speed buses. This interference will result in signal degrade (SD). Consequently, bit errors are generated when service boards receive the signals.

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