4
RS-232 Serial Port Connector
System Requirements
a. A host computer with one free legacy or add-on RS-232 port.
b. Windows XP OS or higher to run iPort Utility Pack applications.
2 Interconnects
The iPort/AI 2 includes three (3) interconnections:
RS-232 Serial Port Connector
The RS-232 connector provides connection from the I
2
C adapter to the serial port
on the host computer. For computers with DB-9 connectors, use the DB-9 to DB-25
(#C9F25M1) cable provided with the adapter, or equivalent.
The I
2
C adapter implements the RS-232 interface using the following pins:
DB-25 Serial Port Pinout
DB-25 Pin 2, Transmit Data from the Host Computer to the iPort
DB-25 Pin 3, Receive Data from the iPort to the Host Computer.
DB-25 Pin 4, Request to Send from the Host Computer to iPort.
DB-25 Pin 5, Clear to Send from the iPort to the Host Computer.
DB-25 Pin 7, Ground between Host Computer and iPort
DB-9 Serial Port Pinout
DB-9 Pin 3, Transmit Data from the Host Computer to the iPort
DB-9 Pin 2, Receive Data from the iPort to the Host Computer.
DB-9 Pin 7, Request to Send from the Host Computer to iPort.
DB-9 Pin 8, Clear to Send from the iPort to the Host Computer.
