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September 2015
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Changing the COM port used by a USB-to-Serial Adapter
When a USB-to-Serial adapter is initially connected, Windows will assign a COM port to it. To find
out what COM port has been assigned, go to Device Manager (type “device” in the Start Menu
search field, then click on Device Manager).
Locate the “Ports” section
and expand it. Find the
USB-to-Serial adapter
If needed, the COM port number may be using the following steps:
Right click on the USB-to-Serial adapter device in Device Manager and select Properties.
Chose the “Port Settings” tab
Click on “Advanced”