Foison C12 User Manual page 40

Select My Computer – (click the right button) – Properties – Hardware – Device Manager,
then you will see the followings:
In the above dialogue , show as the red square , USB SERIAL PORT (COM3) is the USB
port parameter . Please note , when you use USB output , please pay more attention on the
COM port selection in the cutting software should the same as the USB port it used in PC.
In the above figure, the communication port of USB is COM3. But in some software only
has COM1 and COM2 selectable, please follow the following instructions to change the
port parameter.
First we could change COM1 port to any port that not in use, such as COM4. The method
is as following
1. Click the mouse's right button of COM1 and select Properties, shown as followings:
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C SERIES USER'S MANUAL