Pcomm Terminal Emulator

One of the "pro" features of the PComm suite is the ability to monitor or "spy" on communication between other applications and serial ports. This is a lifesaver when you are trying to debug a proprietary piece of software that isn't behaving correctly with your hardware. 4. Visual Signal Status

PuTTY is lightweight but lacks the advanced serial-specific diagnostic tools (like signal status lights) found in PComm. pcomm terminal emulator