Data Concentrator Unit (DCU) Data Processing System by SCI Technology Inc

Companies & Organizations:

United States of America

SCI Technology Inc
13000 Memorial Parkway SE

SCI Technology’s Data Concentrator Unit (DCU) collects and converts analog flight data into informative digital readouts for aircraft pilots. The DCU provides real-time data such as engine and transmission oil pressure and temperature, allowing pilots to know the exact performance of the aircraft’s systems at any given moment.


Compact, lightweight and low-powered, the DCU provides a single, high-density conversion interface for any Aircraft Management System (AMS). Due to its flexible design, the DCU works seamlessly with an array of inputs and outputs from an aircraft’s equipment and sensors, including discrete, analog and avionics bus data. The DCU is easily configurable to meet any platform’s unique needs.


Fully Qualified, Built to Last

Originally designed for the Army’s Common Aviation Architecture System (CAAS), the DCU is a mature unit that is proven, reliable and widely fielded on a variety of platforms. Viability and currency have been maintained through SCI-supported obsolescence management and refresh efforts.


The DCU is fully qualified to MIL-STD-810, MIL-STD-704 and MIL-STD-461 as modified by ADS-37A-PRF. The DCU also meets the lightning requirements of RTCA/DO-160-22, and is manufactured to MIL-E-4400, Class 1A.


Complete Flexibility

While the dual-redundant 1553 RT interface is the primary means of communication for the DCU, it implements several other buses. The DCU transfers information between the 1553 MUX bus, ARINC-429 and EIA-422 serial interfaces, KY-100 serial bus and KY-58 MUX bus.


The DCU can store up to 32 different configurations in its non-volatile memory. Each configuration is accessible by either the AMS or built-in configuration straps. In a typical setup, two connected DCU units work in parallel to provide a fault-tolerant system for collection and distribution of inputs and outputs.


The SCI Advantage

With more than 55 years of experience in the Defense and Aerospace sector, SCI has developed a unique combination of resources and expertise that enable us to deliver superior products and services.


Backed by the strength of SCI, the DCU provides:


270+ input/output (I/O) channels.

MIL-STD-1553B interface

ARINC-429 interfaces

KY-58 and KY-100 control interfaces

RS-422 and RS-232 interfaces

32-bit RISC processor

136 KB of SRAM

2 MB of flash memory

32 KB of auto-store


115VAC or 28VDC power

MIL-C-38999 connectors

MIL-STD-461 and MIL-STD-810

MIL-E-4400, Class 1A



Voice warning option; IWCA (V)

Support for parallel operation

Field-programmable; stores 32 user configurations

Defense Products & Services: Data Concentrator Unit (DCU) Data Processing System by SCI Technology Inc
Companies & Organizations: 
Defense Products & Services Sectors: Data processing systems, airborne
Description: Data Concentrator Unit (DCU) Data Processing System
Source of Information: SCI Technology Inc