If you have more Phidget boards of the same type and want to distinguish between them in 24U Phidgets Remote, you can label them. The label is displayed at the second row under each board.
Here are the steps for setting the label using MAC computer:
1) If you don't have Phidgets drivers installed, you can download them here: http://www.phidgets.com/docs/OS_-_OS_X
2) Connect your Phidget to your PC.
3) Open “System Preferences” and click on the "Phidgets" icon.
The rest of the steps are in the image:
Note: Setting label for "Remote Phidgets” doesn't work.