TROUBLESHOOTING
12 USB-Link 2 Technical Guide
Troubleshooting the COM Port Number
4. To assign a port number less than 10, click on
<Advanced>. The Advanced Settings Window
will appear.
5. In the COM Port Number drop box, select which COM
port you wish to use. Make sure you select a COM port
number that is not currently in use (you can see the ports
in use in the Device Manager Window). Select a port
number that is less than 10.
NOTE: Windows
®
will assign a port number to every device
that has ever been installed on your computer. So if
there are no available ports below 10, choose a port
number less than 10 for a device listed that you know
you are not currently using.
6. Once you select the correct COM port number, click
<OK> and close any windows opened in the process of
changing the port number. Make note of this number
because you will need it for your Prism 2 setup.
Changing the USB COM Port Number
When the USB-LINK2 is rst plugged in, it will be assigned a COM
port number to be used for communicating with the Prism 2 software.
If the port number is 10 or greater, it needs to be changed to a value less
than 10 to be recognized by Prism 2. If you have received a replacement
USB-LINK2, change the COM port to match your previous device.
Prism 2 will automatically use the new device.
1. Right-click on the Windows
®
icon and select <Device
Manager> to get to the Device Manager Window.
2. Click on the drop down arrow next to Ports to see all of
the COM ports.
3. Right-click on “USB Serial Port (COM#)” and select
<Properties>. In the Properties Window, select the <Port
Settings> tab.
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