Nathan,
There is an LED on the analog module that will illuminate when you have it connected and receiving power. At the other end of the circuit board, there is a computer jumper with three pins. Two of these pins must be connected together using the computer jumper in order for the battery voltage to be input to the Crio.
You can see a pictoral here...
http://www.usfirst.org/sites/default...20Breakout.pdf
There is a diagram and explanation on pages 2 and 3 of this doc.