Net2 Node flashing inactive

Hi, 

I'm doing work at a high school that has an old Net2 Node and I need it to run all LEDs they rented for their show. I have everything configured the way I want them to but the ports keep flashing "Inactive." I can't find anything in the documentation that addresses what that means (I assume it means that it won't output) or how to change that status. Any help would be much appreciated. Thanks!

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