Computer's Interfacing Hardware ,Electronic devices and Input Output to Control System.

Hardware Resource

Serial Port or COM port table showing all pin input output of all used serial-port connectors, including the DB9,DB25-pin D-sub and
Corresponding Serial port pins 25 pin to 9 Pin ,COM's Address and Interrupt table,3 wire Loop-Back wring diagram,MODEM wiring diagram"Straight-Through",All these cables work with INTERLINK data transfer.