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Network interface card 369B1724P0005 (C9220002) The network interface card is the communication interface between the DPU and the I/O station, and is responsible for the exchange of real-time data between the I/O station and the DPU Dual machine switching card 369B1861P0006(C2908412A) The dual switch card is an intelligent PC interface card. The dual switch card of the redundant DPU is connected by a cable, which mainly realizes the logical switch of the redundant DPU. |