This paper deals with a comprehensive and detailed introduction about the classification, cause, behavior and suppression methods of the common mode disturbance combining theory with examples.
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但最根本的应该是在印刷电路板设计、元器件布置和连接线的安排上下功夫，抑制共模骚扰源的产生。
But most attention should be put on the PCB design, elements position and line connection, which can suppress the source of the common mode disturbance.
According to GB 9254 — 2008, common mode disturbance test of telecommunication port is to measure the conducted electrical field of ITE transmitted into network.
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