Huawei Technologies Co., Ltd.
Method, apparatus, and communication node for suppressing output noise of PCIe devices in optical fiber communication
A method, an apparatus, and a communication node for suppressing output noises of peripheral component interconnect express (PCIe) devices in optical fiber communication is provided. The communication node includes a PCIe chip and a detection and control circuit connected to a transmitting end of the PCIe chip. The PCIe chip transmits an electrical signal by a transmitter of a first lane. The detection and control circuit detects a differential-mode voltage of the electrical signal. If the differential-mode voltage is lower than a first threshold, the detection and control circuit controls an optical module connected to the PCIe chip not to transmit an optical signal through the first lane of the optical module. When a PCIe system includes the communication node, output noises of the transmitter is suppressed, and a normal optical fiber communication link is ensured.
HUAWEI TECHNOLOGIES CO., LTD.
H H H H G
H04B H04B H04B H04B G06F
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Xin Yongyao Yu Sheng Zhong Xiaoyu
Qiu Li Hu Li Zhang Ge