对于分层分布式的变电站自动化系统而言,其测控单元利用串行通信传递数据,与站控层局域网是通过中间层前置单元在逻辑上进行隔离的,可以认为无安全风险。
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Why is full-duplex Ethernet superior to its single-duplex counterpart?()
A. It uses inexpensive hubs
B. It operates without collisions
C. It operates on switches
D. It provides faster data transfer
E. It utilizes fewer wiring pair