Data Sheet TTC SCD-112D 12-Channel Signal Conditioning Card 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 SCD-112D-2 is a 12-channel plug-in signal conditioning card for use in Curtiss-Wright’s EDAU-20XX, CDAU-20XX and WDAU-20XX products.