User Manual Manual: DBH-672 Digital Beachhead User Manual Download Resource The file you are trying to access requires you to be logged in as a registered user. Registration is free, sign up today. 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. This manual provides functional and technical descriptions of the DBH-672 hardware, instructions on connecting the system to test equipment, connector descriptions and pinouts, and specifications.