Brunini
2015-04-21, 03:50 PM
Metal-oxide semiconductor (MOS) transistors in a lot used on TN51XCS boards intended for the Huawei OptiX OSN 8800 (http://www.thunder-link.com/HUAWEI-OPTIX-OSN8800_p193.html) 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.