Copyright © 2010 Future Technology Devices International Limited

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Document Reference No.: FT_000135

USB-COM422-PLUS2 Datasheet

Version 1.2

Clearance No.: FTDI#103

Figure 2.7 - COM Port and USB Device name Assignment

To determine which COM port has been assigned to Converter A or B, the cursor point to the USB Serial

Port (COM10) or (COM11), then right-click on it and select “Properties”, it shows their relationship to the

Converter A or B.

In the figure below, the Converter A is assigned to COM10, Converter B is assigned to COM11.

Figure 2.8 - COM Port Assignment and Proterties

Use this COM port number with your application software in order to access the USB-COM422-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 above “Properties”, click on the “Port Settings” tab.