The Integrated Air Data Display Unit (IADDU) is a self-sensing RVSM compliant, Digital Air Data Computer (DADC) Altimeter with selectable altitude alerting.  The IADDU inputs static (Ps) and pitot (Pt) pressures, total temperature (Tt), and installation configuration data (from the Installation Configuration Module (ICM).  Air data is output on an ARINC 429, RS422 data and analog formats. The indicator provides a dedicated display of baro and Static Source Error Corrected (SSEC) altitude, altimeter setting number, and selected altitude, in combination with an electromechanical pointer movement.