Watchdog

The Terran Orbital Watchdog is a secondary, ‘sidekick’ processor which allows a single spacecraft to carry multiple flight computers, and moderates between them, ensuring that only one computer is actively controlling the spacecraft at one time, and the second module is available as a hot or cold spare. The watchdog also manages some anomaly resolution features, such as long duration timers.

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Specifications

Features

Hard reset control of FC and TT&C modules Contingency direct connection to TT&C modules Cold or Hot swap arbitration

Communication

RS422, RS485

Supply Voltage

9 V to 13 V

Power Consumption

0.25 W- 0.32W

Processor

Vorago VA10820 Cortex-M0

Dimensions (mm)

110.5 x 58 x 27

Total Mass (kg)

0.14