Orion System PT-Link II BACnet3 - Manual (Page 18)

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4. UPDATING THE SOFTWARE
PT-Link II BACnet3 Interface 18
4.1 Updating the PT-Link II Controller
4.1.2 Finding What COM Port Number
the PT-Link II is Using
1. Left-click on , located on the bottom
left of the Windows Tool Bar.
2. Select .
3. Double-click the System Icon.
4. Click the tab.
5. Click the button.
6. Click on the plus sign next to Ports to see all of the
common ports.
7. Locate the USB Serial Port (COM#). The COM# in
parentheses is the port it is located on. Write this COM
port number down. You will need to know this when
setting up the Prism software.
8. If the COM port number is 10 or greater, go to
“Changing the USB COM Port Number” on page 19.