Remote interface units

RIU Mk 2
ADHA RIU

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RIU Mk 2

The evolution of the renowned Airbus Crisa's RIU family, merges former developments in a single more flexible and compact product. This evolution is based on the strong heritage accumulated with its predecessors, with 19 flight models already launched and having totalled flawlessly more than 700 kh in orbit

Its fully redundant concept, its radiation hardened design and its compliance with the ECSS standards make the RIU Mk 2 the perfect choice for missions where failure is not an option, such as optical and radar Earth Observation or Governmental satellites.

RIU MK2

Features

Main functions:

  • Data concentrator, from the OBC to the platform’s subsystems
  • General-purpose interfaces, as per ECSS-E-ST-50-14C
  • Interface with the chemical propulsion system
  • Interface with the AOCS’ sensors and actuators, such as magnetic torquers, reaction wheels or magnetometers
  • Modular concept, allowing different number of general-purpose interfaces boards

Key parameters:

  • Standby power consumption: <30 W (in its most complete configuration
  • Mass: <22 kg
  • Volume: 30.5 dm3
  • 11 years lifetime in LEO // TID: 50 krad(Si)

 

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  • <30 W
    Power Consumption
  • 11 kg
    Mass
  • 30 dm3
    Volume

ADHA RIU

The benefits that can be potentially achieved by standardizing the architecture of data-handling systems for satellites have moved to the European Space Agency (ESA), and to the main European players in the space sector, to conceive and promote the Advanced Data Handling Architecture (ADHA) standard. ADHA is targeting ESA’s Earth Observation, Science and Exploration missions as main users.

Airbus Crisa offers the three classical specific modules for the RIUs / RTUs, with full compliance with the ADHA standard.

Advanced Data Handling Architecture (ADHA) standard

Features

Main functions:

  • STDIM, general-purpose interfaces, as per ECSS-E-ST-50-14C 
  • PIM, interface with the Propulsion system: drivers for the actuators (electrovalves) and conditioning and acquisition of the subsystem’s sensors
  • AIM, interface with the AOCS’ elements, such as reaction wheels or magnetic torquers

Key parameters:

  • Extended 6U modules: 233 x 220 mm
  • STDIM: fully redundant, at module level (two fault containment groups[OMJ1] )
  • Specific power inputs for Propulsion and AOCS interface modules
  • TM/TC communications bus (backplane): CAN
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Our datasheets

Technical info.