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2. Find the serial port (COM port) number from your computer:
The first step is to find the COM port number. If your computer has a serial port (9-pin D-shape male
connector on the back, next to the 25 pin printer connector), the default assigned number is COM1.
If you are using a USB to COM converter to convert one USB port to a COM port, you can find the
computer assigned COM port number.
After install the USB2COM driver that comes with the device, click on Start located on the left
bottom corner of your compute screen. Move the mouse to My Computer and right click on it. Move the
mouse down and click on Properties.
Click on Hardware and select Device Manager.