There is a number of the equipment controlled through a serial port from a PC or a terminal..

There is a number of the equipment controlled through a serial port from a PC or a terminal.

Look RS232 is a tool for debugging computer connection with peripheral devices using COM port, such as modem, mini-ATS, projector etc. Its easy to use interface guarantees an easy work with Com-port.

Professional serial communication library - DLL for Windows & MSDOS libraries. Supports ZModem, YModem, XModem file transfer protocols, modems, Microsoft Visual C/C++, Borland C/C++, Access, Visual Basic, QuickBasic, & all tools that can call DLLs.

Advanced Port Scanner is a small, fast, easy-to-use and robust port scanner for the Win32 platform. It is multithreaded, so on fast machines you can scan ports in very a few seconds.

Fast 32-bit telnet with SSH1, SSH2, SFTP, TAPI Dialup and direct COM port access. Solid emulation gives AbsoluteTelnet the edge, along with SOCKS Proxy, Color/Font settings, port forwarding, X11 forwarding, and a host of terminal options.

Parallel Port Viever shows you how parallel port works on hardware level. You can see when it is 5 Volts on it's pins.

Free Port Scanner is a small and fast port scanner for the Win32 platform. You can scan ports on fast machines in a few seconds and can perform scan on predefined port ranges.The tool is designed with a user-friendly interface and is easy to use.