DB9-USB-RS232 Datasheet, PDF (13/27 Pages) Future Technology Devices International Ltd. – DB9-USB-RS232 Module Male & Female

Document Reference No.: FT_000204
DB9-USB-RS232 Datasheet
Version 1.2
Clearance No.: FTDI# 130
COM Port Assignment
Next, to determine which COM port has been assigned, open the Windows Device Manager from the
System Control Panel.
Figure 3.6 – Device Manager
Click on the Plus “+” sign next to the Ports tree to list the available COM port. You will see “USB Serial
Port”, followed by a COMn assignment. In the figure below, the DB9-USB-RS232 module is assigned to
COM3.
Figure 3.7 – COM Port Assignment
Use this COM port number with your application software in order to access the DB9-USB-RS232 module.
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 USB Serial Port and select Properties.
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