1)   232Analyzer 5.2
232Analyzer is an advanced serial protocol analyzer software, terminal, debugger, monitor, sniffer, it allows programmers, engineers to control, debug, monitor, sniff, test and analyze serial port activities with RS232/RS485/RS422/TTL converters.

 2)   Serial Port Terminal 4.1
Use Serial Port Terminal to connect to remote computer using null-modem, send or receive various types of data over serial line, redirect data into specified file, monitor data exchange between serial devices, troubleshoot modem settings and more.

 3)   Eltima Serial Port Terminal 5.0
Port Terminal lets you connect to serial port device or to remote computer using null-modem cable or LAN, send and receive various types of data (ASCII string, binary, octal and hexadecimal), redirect input/output data streams into a specified file.