Digital guide

You are here:

GE VME7740-841 High-Performance VMEbus Single-Board Computer

VMEbus Single-Board Computer (SBC)

Technical Specifications

  • Form Factor: 6U VMEbus (233 mm × 160 mm)
  • Processor: PowerPC G4 (MPC7448) running at 1.0 GHz or higher variants
  • Memory:
    • Up to 1 GB of DDR SDRAM (ECC support available)
    • Boot flash memory for firmware and system software

Detailed content

  • Operating Systems Supported:
    • VxWorks
    • Linux (including real-time variants)
    • LynxOS
    • Integrity
  • VMEbus Interface:
    • Conforms to VME64x (ANSI/VITA 1-1994, R2002) standards
    • 64-bit data path support
    • Supports A32/D64, A24/D32, A16/D16 addressing
    • Slave and master capabilities with DMA support
    • P0/J0 and P1/J1 connectors fully populated
  • I/O Interfaces:
    • Two Gigabit Ethernet ports (1000BASE-T)
    • Multiple RS-232/RS-422 serial ports
    • USB 1.1 or 2.0 (depending on configuration)
    • Two PMC sites (one on front, one on rear via P2) for expansion
  • Graphics and Display:
    • Optional graphics support via PMC module
    • Video output for local console monitoring
  • Timing and Synchronization:
    • Onboard real-time clock (RTC)
    • Support for VME system controller functions
    • IEEE 1588 Precision Time Protocol (PTP) support in some configurations
  • Environmental Specifications:
    • Operating Temperature:
      • Commercial: 0°C to +55°C
      • Extended: -40°C to +85°C (conduction-cooled variants)
    • Humidity: 5% to 95% non-condensing
    • Shock and Vibration: Designed to meet MIL-STD-810 for rugged applications
  • Cooling Options:
    • Air-cooled (standard)
    • Conduction-cooled (for military and aerospace use)
  • Power Requirements:
    • +5 VDC, +3.3 VDC, and ±12 VDC via VME backplane
    • Typical power consumption: 15–25 W depending on load
  • MTBF: Typically exceeds 100,000 hours under normal operating conditions

Functional Features

  • High-Performance Processing: Leverages PowerPC G4 architecture with AltiVec technology for signal processing and computational tasks
  • Rugged Design: Engineered for reliability in extreme temperatures, high vibration, and electromagnetic interference environments
  • Modular Expandability: Utilizes PMC (PCI Mezzanine Card) sites for adding specialized I/O, communications, or graphics capabilities
  • Real-Time Operation: Fully compatible with real-time operating systems for deterministic control and data processing
  • Secure and Reliable Boot: Protected flash memory ensures firmware integrity and fast boot times
  • VME System Controller Capability: Can act as the system controller (VMEcrate master) managing bus arbitration and timing
  • Diagnostic Support: Comprehensive onboard diagnostics for system health monitoring and fault detection
  • Long-Term Availability: Designed for extended lifecycle support in industrial and defense programs

Application Scenarios

  • Military and Defense: Used in radar signal processing, electronic warfare systems, command and control units, and avionics platforms
  • Aerospace: Integrated into flight test instrumentation, satellite ground stations, and onboard processing systems
  • Industrial Automation: Applied in high-speed control systems, real-time simulation, and process monitoring
  • Transportation: Deployed in locomotive control systems, rail signaling, and intelligent transportation infrastructure
  • Energy and Power: Utilized in substation automation, turbine control, and grid monitoring systems
  • Test and Measurement: Serves as the core processor in data acquisition systems, hardware-in-the-loop (HIL) simulators, and laboratory equipment
  • Telecommunications: Found in base station controllers and network switching equipment requiring ruggedized computing

You may also like