Orion System PT-Link II BACnet2 - Manual (Page 21)

PT-Link II Interface
PT-Link II BACnet ® Technical Guide
21
Updating the PT-Link II Controller
Revised 10/11/12
Finding What COM Port Number the
PT-Link II is Using
1. Left-click on
<Start>
, located on the bottom
left of the Windows Tool Bar.
2. Select
<Control Panel>
.
3. Double-click the System Icon.
4. Click the <Hardware> tab.
5. Click the
<Device Manager>
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 22.