Constellation Remote Terminal Unit (cRTU)
Beyond Gravity (ex-RUAG Space)
Customizable remote terminal unit bridging the on-board computer and platform electronic interfaces, based on the same COTS I/O boards as the cOBC.
Typed specifications17 values
Discloses 5 of 11 fields engineers filter by in this category (category median 4).
- Supply voltage
- 28 V nom. · unregulated bus power input · datasheet p.2 28 V | 22–38 V bus power input, unregulated 28V (22V - 38V) | 5 V | 28 V +1
- Operating temperature
- -20–60 °C datasheet p.2
- Radiation tolerance (TID)
- 30 krad datasheet p.3 30 krad min · component Total Ionising Dose > 30 kRad
- Radiation and fault mitigation
- other latch-up free · datasheet p.2
- Random vibration
- 15 g RMS random vibration · datasheet p.2
- Shock qualification
- 2 000 g 2000Hz · datasheet p.2
- Redundancy
- single string support for both redundant and single string solutions · datasheet p.2 other support for both redundant and single string solutions
- Analog inputs
- 64 analogue acquisitions, differential · datasheet p.2 128 analogue acquisitions, single ended
- Switched power outputs
- 2 secondary voltage output channels, 5V, individually switchabl… · datasheet p.2
Each value is typed with its unit and measurement condition and cites the datasheet page it was taken from. Nothing is guessed: a field that is absent here has not been published by the manufacturer. machine-extracted ✓ checked by NewSpace Market ✓ manufacturer confirmed by the manufacturer.
As published by the supplier20 lines, in the manufacturer's own wording
- Function
- Bridge between On-Board Computer and platform electronic interfaces
- Board commonality
- Same commercial I/O boards as the cOBC
- Customization
- Additional modifications and new board types available on request
- Supply voltage
- 28 V (22 V – 38 V)
- Pulse commands number of pulses
- 81
- Pulse commands pulse voltage
- 28 V
- Pulse commands pulse current
- < 0.6 A
- Secondary voltages output voltage
- 5 V
- Stepper motors number of motors
- 4
- Stepper motors drive voltage
- 28 V
- Stepper motors drive current
- < 0.5 A
- Stepper motors end stop inputs
- 8
- Magnetorquers number of bar drives
- 3
- Magnetorquers drive voltage
- 28 V
- Magnetorquers supply channels
- 4
- Magnetorquers end stop inputs
- 8
- Analogue acquisitions input channels
- 128 / 64
- Operating temperature
- -20 to +60°C
- Random vibration
- 15 g RMS
- Shock
- 2000 g @ 2000 Hz
About
The Constellation Remote Terminal Unit (cRTU) is a new space product that provides a highly reliable and customizable unit for bridging between the On-Board Computer (OBC) and platform electronic interfaces. It is based on the same commercial I/O boards that are used in the constellation On Board Computer (cOBC), making it a reliable and cost-effective choice for a wide range of New Space missions.
The cRTU is highly customizable, with additional modifications and new board types available upon request. This makes it easy to tailor the cRTU to meet the specific needs of any new space mission, from small satellites to large spacecraft.
Available boards include the PDIO board, a commercial off-the-shelf solution offering common analogue interfaces to support magnetorquers, analogue acquisitions, thermistors, secondary power supplies, and stepper motors including SADE, and the PROPE board, which provides the capabilities to interact with a chemical propulsion system.
Documentation
- cOBC-PDIO.PDF PDF source: www.beyondgravity.com ↗
- cOBC-PROPE.PDF PDF source: www.beyondgravity.com ↗
Need the full ICD, test reports or a specific revision? Ask the supplier directly.