Data Sheet AXN/ICP/402 Data Sheet Download Resource Login to download this resource Username Enter your Curtiss-Wright Defense Solutions username. Password Enter the password that accompanies your username. Forgot password? Don’t have an account? Register here. The AXN/ICP/402 performs a Fast Fourier Transform (FFT) on its 4 ICP channels. Both the original sampled data and the results of the FFT analysis are available as output parameters.