(A. The wiring system will run through each plane on the 1st, 2nd, and 3rd floors. It mainly provides high-performance transmission routes for system signals such as voice, data, and images. B. As a comprehensive line method, it should have maximum compatibility and openness, can meet the transmission needs and network structure of various types of communications and computers, and provide a standardized, high-bandwidth, low-cost network environment)
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