Copyright © 2010 Future Technology Devices International Limited

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Document Reference No.: FT_000147

USB-COM232-PLUS2 Datasheet

Version 1.1

Clearance No.: FTDI# 96

Figure 2.6 - 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 USB-COM232-PLUS2 is assigned to

COM3 and COM4. Port A is always assigned the lower COM port number (COM3 in this example) and Port

B the higher COM port number (COM4 in this example).

Figure 2.7 - COM Port Assignment

Use these COM port numbers with your application software in order to access the USB-COM232-PLUS2.

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.

Figure 2.8 – Access COM Port Properties

Next, click on the “Port Settings” tab.