System for the Scientific Payload Information Support (SIOK)SIOK has been designed for controlling scientific payload of the “Phobos-Grunt” spacecraft. SIOK is a backup computer with an extended nonvolatile memory.
SIOK provides for the solution of the following tasks:
- - reception of digital commands and onboard time code from the s/c housekeeping systems via data backbone between SIOK and s/c;
- - transferring of the digital control commands and onboard time code via internal data backbone between SIOK and scientific instrumentation;
- - collection and storage in permanent memory of data acquired by the s/c scientific instrumentation; and
- - translation of scientific instrumentation data from memory to the s/c radio system during communications sessions.
|Power supply voltage range, V||23-32|
|Power consumption, W||less than 4,0 for 27 V|
|Nonvolatile data memory, MB||32|
|Program memory, kB||128|
|Program RAM , MB||2|
|Data exchange interfaces||MIL STD-1553B|
|Failure-free operation probability||0,97|