METHOD AND APPARATUS FOR SUPPRESSING PCIE NOISE OUTPUT IN OPTICAL FIBER COMMUNICATIONS, AND COMMUNICATIONS NODE

摘要

A method and an apparatus for suppressing PCIe noise output in optical fiber communications, and a communications node. The method comprises: detecting a differential mode voltage of a sending end of an interface module; and when the differential mode voltage is lower than a threshold, controlling an optical module connected to the interface module to be turned off. By using the embodiments of the present invention, when two communication parties communicate through optical fibers, for a sending end, when it is detected that a differential mode voltage of a sending signal of the sending end is lower than a threshold, an optical module can be controlled to be turned off, so that the sending end cannot output a noise signal and a receiving end is prevented from receiving an exceptional signal, thereby ensuring the normality of an optical fiber communications line.