Digital System for Configuration Detection

Abstract

This paper describes a digital system which detects the configuration of any RS-232C cable that has 25 pin connectors at both ends. The system uses a single chip microcomputer as the system controller for flexibility and cost effectiveness. The system controller sends the configuration information to a PC to be displayed on the CRT screen. A software program which controls the overall operation of the system is also described. The system can be further expanded to a universal configuration detector by adding programmability on the number of pins.