S940
3U cPCI Radiation Tolerant Digital I/O Card

  • Designed for LEO, Mars Terrestrial with an Option for GEO Environments
  • Single-Slot Conduction-Cooled 3U CompactPCI (cPCI) card
  • Twelve RS422 Outputs and Four RS422 Inputs: Space Integrated GPS/INS (SIGI) Interface - Sync Timer and Telemetry Serial Input, Star Tracker: Telemetry Serial Input and Command Serial Output
  • Two RS232 UART ports
  • Reaction Wheel Tachometer Interface
  • Separation Switch Closure Interface
  • Three 2A Rated H-Bridge: Torque Rod Interface
  • Logic Discrete Output Drivers: SADE Pulse Generator and Registered Output
  • Two Opto-Isolated Discrete Output Drivers
  • Triple-Voted Buffered Memory for Serial Interface
  • 33 MHz, 32-bit PCI 2.1 compliant cPCI Interface
  • Nominal power consumption is less than 14 Watts
  • Level-2 Components per NASA GSFC 311-INST-001A specification are available



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