Matrix ETERNITY NE System Manual 35
12. Click Options at the top left of the window. A drop down menu will appear.
13. Click the option COM Port.
14. Select the COM Port to which the communication cable is connected.
If you select the wrong COM port, a dialog box will pop up on your screen with the message: “COMx is 
invalid or busy, please select another COM Port”. Select the right COM Port.