Comm Echo is a free loopback test tool for serial port,TCP/IP and UDP port communication. It works like an echo wall for serial port, TCP/IP sever, TCP/IP client and UDP. It displays all received data in Text, Hex or Decimal format. It lists all available serial port on computer automatically.
Keywords: serial port, com port, tcp, TCP/IP, udp, rs232, rs232 debug, communication, debug, loopback test
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