Command-line error: Invalid port for serial port mapping.
命令行错误：串行端口映射的端口无效。
If transmission line occurs fault, the system is started, then transmits the acquired fault point data to PC by USB serial port in order to process.
当输电线路发生故障时，启动测距系统，将采样得到的故障数据通过US B串行端口上传到PC机，进行数据的浅析浅析处理。
This software supports creating connection between two computers both by modem dialing and directly with a serial-port to serial-port line.
该软件支持两台计算机通过调制解调器拨号连接，也支持两台计算机通过串口对接线直接对接。
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