Sirius TCM

The Sirius TCM, a combined mass memory (solid-state recorder) and TM/TC interface module that implements the CCSDS standards for satellite link services, is designed to directly interface CCSDS compliant transceivers.

It comes with standard software but can be delivered without this to enable customer-specific implementations. The software architecture accommodates input modules that enable the TCM to record from many different sources. A 16 GB NAND flash storage capacity makes it possible to store a large amount of mission data before downloading it.

The Sirius TCM also includes two SpaceWire interfaces that can be used for connection to other Sirius products, creating a distributed network. In smaller spacecraft the TCM, running the RTEMS real-time operating system (RTOS) on a 32-bit OpenRISC processor, can act as the main onboard computer, which results in a slimmed data handling sub-system.

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


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 TCM. Since it is normally delivered with an application handing all the interfaces, it requires no software development in itself. If the Sirius TCM is to be delivered without the standard applications, drivers are supplied for all interfaces.

The Sirius TCM 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 you 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.