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Objectives
The objective of this project is the development and qualification of a new version of Remote Data and Interface Units (RDIU) enabling to respond to a larger range of telecommunication payloads in a cost effective manner.
The main activity consists of the design, development, manufacture, test and qualification of the BUSTM module, which generates two redundant OBDH buses outside the RDIU interfacing to other payload units.
The achieved improvements are (1) significant reduction of analog telemetries to be acquired by the RDIU, (2) reuse of payload units with RUBI (OBDH) interface qualified and used on SB4000 satellites, (3) simplification of the payload harness, and (4) simplification of payload assembling and integration tests.
In addition the new hardware includes the firmware evolution in order to manage two external OBDH buses and to generate a generic firmware compatible with various RDIU versions.
Challenges
Key issues of this project are:
- DDR documentation including RDIU equipment documentation (for topics related to the BUSTM module, BUSTM module documentation and firmware documentation,
- BUSTM EM module,
- Test report of the BUSTM module,
- RDIU qualification test reports.
Plan
The development activities are:
- Design, development and documentation of the BUSTM board,
- Manufacturing and validation tests of the EM,
- Development of the test equipment for the BUSTM board,
- Development of a new standard and flexible firmware embedded in the equipment,
- Qualification of the new RDIU on the PFM model.
Current Status
Finished (November 2007).