Display Electronic Computer (DEC)

Display Electronic Computer (DEC)

Display Electronic Computer (DEC) works as a display computer of the Navigation and Attack System (NAS) for aircraft avionics system. DEC performs the functions of a display computer, and adaptation interface of analog input signals to the 1553B bus. DEC receives data from the Line Replaceable Units (LRUs) of the avionics system via the 1553B bus, RS422, discrete and analog signal interfaces. It further processes this data to generate video signals to be displayed on the Head-up Display (HUD) and Multi-Function Displays (MFDs).

Product Details

OVERVIEW

Display of symbology on Head-up Display (HUD)
Display of NAS parameters on Multi-Function Displays (MFDs)
Display of IR video from FLIR on MFD’s and HUD
Generation of video to be recorded in the AVCR
Adaptation interface of analog input signals to the 1553B bus
Control of displays
Pilot action management
Database management
Store management
1553B, analog, discrete interface management with NAS equipment

Block Diagram

SPECIFICATIONS

CPU Module: PowerPC processor, Memory units, VME interface, Power section, 1553B interface, RS-422 interface
Graphics Module: PowerPC processor, Memory units, Graphical Processing Unit, Video Input Unit, VME interface, Power unit
HGM: HUD interface unit, Video interface unit, VCR interface unit, VME interface, Power unit
Adaptation Module: Micro controller, Memory unit, DRY discrete interface, WRP interface, Analog- Digital unit, Synchro/Digital unit, VME interface
Discrete Interface Module (DIM): Processing Unit, Memory Unit, High voltage driver output unit, Discrete input unit, VME interface
Spare Slots: For additional Modules
Permanent operating temperature range: -30°C to +70°C
Transient operating max temperature: +75°C during 20 minutes, air cooling off
Storage temperature range: -40°C to +80°C
Pressure range: corresponding to an altitude up to 50 000 feet
Humidity: Up to 95% Relative Humidity at +30°C