A new network card circuit

Abstract

The utility model relates to network card technical field discloses a novel network card circuit, including RJ45 interface, ESD protection, power management module, firmware storage, network interface transformer, signal conditioning and protection circuit, the RJ45 interface is connected to the electric interface of PHY chip module through ESD protection, network interface transformer in proper order, the output of power management module is electrically connected in the inside of MAC controller module, the output of MAC controller module is electrically connected with DMA engine module, the output of signal conditioning and protection circuit is electrically connected in the inside of PCIe interface module, the interface subassembly is set up in PHY chip module. In the utility model, through setting hot plug controller, the power timing control of PCIe interface module and the trigger signal transmission of hot plug are realized, thereby support equipment live plug, avoid the damage caused by equipment shutdown power failure, improve availability and maintenance efficiency.

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