Document Reference No.: FT_000151
DS_US232R-10(R-100/500) USB TO RS232 ADAPTER CABLE Data Sheet
Version 1.11
Clearance No.: #99
COM Port Assignment
Next, to determine which COM port has been assigned, open the Windows Device Manager from the
System Control Panel.
Figure 3-7 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 US232R is assigned to COM3.
Figure 3-8 COM Port Assignment
Use this COM port number with your application software in order to access the US232R.
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 3-9 Access COM Port Properties
Next, click on the “Port Settings” tab.
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