Copyright © 2010 Future Technology Devices International Limited 14
Document Reference No.: FT_000341
DS_UT232R-200(500) USB TO RS232 ADAPTER CABLE Data Sheet
Version 1.0
Clearance No.: 180
3.2.2 COM Port Assignment
To determine which COM port has been assigned, open the Windows Device Manager from the System
Control Panel.
Figure 3-2 Device Manager
Click on the Plus “+” sign next to the Ports tree to list the available COM port. You will see “FTDI USB
COM Port”, followed by a COMn assignment. In the figure below, the UT232R is assigned to COM3.
Figure 3-3 COM Port Assignment
Use this COM port number with your application software in order to access the UT232R.
If an application requires use of a different COM port number, the assignment may be changed through
the Advanced Driver Options settings.
From the Device Manager listing above, right-click on the FTDI USB COM Port and select Properties.
Figure 3-4 Access COM Port Properties
