Gcomm is a serial communications program similar to seyon, but more modern, and easier to use. Works over serial port, via TCP/IP, or a pipe through another program. Supports xmodem/ymodem/zmodem protocols. Visit the gcomm.sourceforge.net home page for
系统是 Linux ,但是协议部分是可用的
http://easynews.dl.sourceforge.net/sourceforge/gcomm/gcomm-1.0.tar.gz