PLC相关资料介绍PLC简介PLC是电力线载波(Power Line Communication)的英文简写。电力线载波通信技术出现于二十世纪的二十年代初期,它以高压电力线(35kV以上的电压等级)、中压电力线(10kV电压等级)或低压配电线(380/220V)作为信息传输媒体,以载波方式将模拟或数字信号进行传输的通讯方式。它具有传输距离远、通道可靠性高、安全保密性好、投资少见效快、与电网建设同步
计算机网络虚数是非题1.In computer networking jargon, the computers connected to the Internet are referred to as end systems, including rvers , routers, mobile computers.2.One of the attractive features of DSL