Data Converter Unit (DCU)

BAE Systems has the engineering and production facilities to design and fabricate circuit card assemblies (CCAs) to accommodate any specific aircraft interface. Hardware modules and the associated software drivers currently exist at BAE Systems for virtually every avionic sensor interface.

DCU Features and Input/Output

MC68340 processor

• 1 Mb FLASH memory (16 bits wide)
• 256 Kb SRAM (16 bits wide)
• 16-bit onboard data bus
• 16-bit external data bus

MIL-STD-1553B (BC/RT/M)

• 1 ARINC 429 input
• 1 ARINC 429/561 input (software selectable)
• 1 ARINC 429 output
• 2 RS-422/RS-232 data buses (software selectable)
• 16 software programmable discrete inputs
• O/G to +28 VDC
• 8 software programmable analog inputs
• ± 0.5 VDC to ± 50 VDC
• 3 synchro inputs

DCU CCA includes a 70 pin stacking connector to accommodate graphics capability or special interface needs.

DCU chassis characteristics

• Size: 3.81cm (1.50") H x 17.15cm (6.75") W x 19.84cm (7.81") D
• Weight: less than 0.9 kg. (2 lbs.)
• Power Requirements: +28 Vdc, ~ 1A. (600 V transient protected)
• I/O Availability: Up to 104 pins
• Operating Temperature Range: -40°C to +55°C
• Cooling: This unit is cooled by convection air - no auxiliary cooling required.
• Installed Base: New product originally developed for the INMARSAT System interface.

Software interface routines in place

Operational Flight Program is programmable through external port (can be loaded from a laptop personal computer).

For further information, contact:

Sensor Integration Business Development
Tel: +1-512-929-4371
idsmarketing@baesystems.com