ERIU - EIDEL Remote Interface Unit

Integrating payloads and enabling remote control


Satellites and spacecrafts often have scientific payloads with different functions which needs to be integrated with On-Board computers, Data Storage and Mass memories, Remote Interface Units, Communication protocols and Busses.

A Remote Remote Interface Unit (RIU), usually present on medium-large size spacecraft, offloads the On Board Computer from analogue and discrete digital data acquisition and actuators control tasks.

EIDEL has designed it’s own version, called EIDEL Remote Interface Unit (ERIU), which also handle all interfaces between payloads and the OBC/EPS systems on satellites and sounding rockets, both for data transmission and power distribution. In addition the ERIU holds the possibility for a secure connection between two ERIU’s to enable remote integration testing between instrument and OBC/ EPS before flight thus reducing both cost and time for inteagration.


The ERIU can be integrated through a variety of interfaces, covering all of the most common types used in MicroSatellites and sounding rockets today. Instead of connecting each payload to the On-Board Computer or sounding rocket encoder, the payloads are interfaced directly from the ERIU. Power distribution to each payload, including protection circuitry, is handled by the ERIU.

The ERIU has a flash-based SmartFusion2 SoC FPGA, containing a hard Arm Cortex-M3 processor. FPGA fabric can be used for accelerating specific user tasks when required. In combination with the integrated memory, the users can focus more on the front-end of their payloads, and utilize the existing computing power and centralized memory in the ERIU instead if designing these repetitive building blocks for each payload. Encryption is optional, and can be unlocked if requested by the user.

The ERIU will be designed to facilitate the future CCSDS Unified Space Data Link Protocol (USLP), as a custom IP delivered by EIDEL. As a service built around the ERIU EIDEL also offer full instrumental AIT to a single instrument package to be integated into satelites, sounding rockets or other space installations.


Centralized processing and mass memory
Payload interfacing
Handles payload connectivity to spacecraft OBC and EPS
Power distribution, conditioning and monitoring
Remote access and control of payloads
Encryption (optional)
Hardware Acceleration in dedicated FPGA
Supports power and data interfaces of up to four payloads (depending on resource sharing)

Related markets

  • Space


  • Space Instruments & Systems

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