Sirius OBC

The Sirius OBC is an onboard computer featuring a 32-bit OpenRISC processor operating at 50 MHz and running RTEMS real-time operating system (RTOS).

It also includes two SpaceWire interfaces that can be used for connection to other Sirius products, creating a distributed network.

Functions such as triple modular redundancy (TMR) on FPGA gates and error detection and correction (EDAC) on all memory make the Sirius OBC tolerant to single event effects.

It is equipped with many peripheral interfaces, allowing it to act as a remote terminal unit (RTU) that can interface to various sensors and sub-systems in parallel.

The unit has analog inputs with 24-bit resolution (approximately 17-bits effective at highest sample rate) and comes with six RS422 serial ports for custom use.

How to fit our products in your systems

The extensive manual includes information on all interfaces as well as guides for setup and operation of the Sirius OBC. The Sirius OBC is supplied with drivers, as well as sample software, for all interfaces.

The Sirius OBC can be delivered with or without the mechanical enclosure, both options giving you a very small footprint. Standard nano-D (MIL-DTL-32139) connectors are used for all interfaces, giving many options on suppliers.

If preferred, all software, harnesses and mechanical interfaces for your design can be designed and supplied by ÅAC Microtec, using our experienced staff and supply chains.