ASYNC Tester Downloads 

The Communications Tester application is capable of running independently of Tester/Device Simulator to diagnose communication issues with the target system.

It has the ability to determine the optimum configuration for Tester and Device Simulator. 

How to find a lightest way to contact your PDA to the USB port on your PC? USB Serial Converter operates as a bridge between one USB port and standard RS-232 Serial port. You just easily hook the cable into PC or Hub's port, and it can connect any RS-232 devices, such as PDA, scanner, printer... etc.