GE ACC-5595-208 Reflective Memory Hub – Comprehensive Datasheet

Technical Specifications

• Hardware Architecture:
  • Ports: 8 × Small Form-factor Pluggable (SFP) transceiver ports supporting single-mode (SM) or multi-mode (MM) fiber optic cables .
  • Data Rate: 2 Gb/s full-duplex operation with low latency (<10 μs) for real-time data exchange .
  • Cabling: Configurable for distances up to 10 km using SM fiber or 550 m using MM fiber .
  • Power Supply:
    • Input Voltage: 90–264 VAC (47–440 Hz) with reverse polarity protection .
    • Power Consumption: ≤25 W at full load with universal internal power supply .
  • Physical Dimensions:
    • Form Factor: 19-inch 1U rack mountable (483 × 44 × 254 mm) or desktop enclosure .
    • Weight: 1.2 kg (2.65 lb) with compact steel housing .
  • Environmental Ratings:
    • Operating Temperature: 0°C to +65°C (+32°F to +149°F) with 20–80% non-condensing humidity .
    • Shock/Vibration: Compliant with IEC 60068-2-27 (100 m/s²) and IEC 60068-2-6 (5–500 Hz, 0.5 g) .
    • Certifications: CE, FCC Class A, UL 60950, and RoHS compliance .
• Networking & Interfaces:
  • Protocols:
    • Reflective Memory Protocol: Proprietary GE protocol for zero-copy data sharing across distributed systems .
    • Ethernet Management: 10BaseT TCP/IP port for remote configuration via SNMPv1/v2c/v3 .
    • Serial Console: RS232 port for local access and CLI-based control .
  • Redundancy:
    • Automatic Bypass: Port-level bypass mechanism for faulty nodes with <1 ms recovery time .
    • Cascading: Supports up to 256 nodes in a hierarchical network topology .

Functional Features

1. High-Speed Data Synchronization:
   • 2 Gb/s Throughput: Enables real-time data sharing between multiple nodes (e.g., PLCs, RTUs, and simulation systems) with sub-microsecond precision .
   • Reflective Memory Technology: Maintains identical memory images across all networked devices, eliminating the need for explicit data transfers .
2. Industrial-Grade Reliability:
   • Rugged Design: IP30-rated steel enclosure with conformal coating for protection against dust, moisture, and EMI .
   • Redundancy:
     • Dual Power Inputs: Automatic failover between redundant AC supplies .
     • Hot-Swap Capability: SFP transceivers can be replaced without powering down the system .
   • Self-Diagnostics: Continuous monitoring of power, temperature, and port status with LED indicators .
3. Advanced Network Management:
   • Security:
     • MAC Filtering: Configurable access lists to block unauthorized devices .
     • Password Protection: Restricts unauthorized access to configuration settings .
   • Status Monitoring:
     • LED Indicators: Port status (signal, sync, speed) and system health (power, bypass) .
     • SNMP Traps: Alerts for critical events (e.g., port failure, temperature threshold) .
   • Firmware Flexibility:
     • Dark on Dark Mode: Automatically disables transmitter when no signal is detected (firmware v02.00+).
     • Remote Firmware Updates: via Ethernet for feature enhancements .
4. Scalability & Flexibility:
   • Topology Options:
     • Star: Central hub with point-to-point connections .
     • Ring: Redundant ring configuration with <20 ms recovery time .
   • Transceiver Support:
     • Multi-Mode: 50/125 μm or 62.5/125 μm for short-distance links .
     • Single-Mode: 9/125 μm for long-haul applications up to 10 km .
   • Protocol Agnostic: Compatible with GE’s VMEbus, CompactPCI, and PMC/XMC-based systems .

Application Scenarios

1. Aerospace & Defense:
   • Flight Simulation: Synchronizes motion platforms, visual systems, and avionics for high-fidelity training .
   • Missile Guidance: Enables real-time data fusion between radar, inertial navigation, and control systems .
2. Power Generation:
   • Nuclear Reactors: Monitors distributed control systems (DCS) and safety interlocks with sub-millisecond latency .
   • Wind Farms: Coordinates turbine pitch control and SCADA data across geographically dispersed sites .
3. Industrial Automation:
   • Smart Factories: Connects robotics, vision systems, and PLCs in production lines for zero-delay coordination .
   • Process Control: Synchronizes distributed I/O modules in oil refineries and chemical plants .
4. Transportation:
   • Rail Systems: Ensures real-time communication between train control systems and wayside equipment .
   • Autonomous Vehicles: Supports sensor fusion and path planning in driverless shuttles .
5. Medical Devices:
   • MRI Systems: Synchronizes gradient amplifiers and RF coils for high-resolution imaging .
   • Surgical Robotics: Enables precise control of robotic arms in minimally invasive procedures .

Typical System Integration

• Hardware:
  • Nodes: GE VMEbus-based controllers (e.g., VME-5565), FPGA modules, or third-party systems with reflective memory cards .
  • Cabling: Duplex LC fiber optic cables for point-to-point links or simplex cables for cascading hubs .
• Software:
  • GE Reflective Memory API: Drivers for Windows, Linux, and real-time operating systems (RTOS) .
  • Simulation Tools: MATLAB/Simulink integration for model-in-the-loop (MIL) testing .
• Network Design:
  • Redundant Ring: Two hubs forming a dual-ring topology with automatic bypass .
  • Hierarchical Star: Multiple hubs connected to a central core for large-scale deployments .

Safety & Compliance

• Functional Safety:
  • IEC 61508: Optional SIL 2-rated firmware for safety-critical applications .
  • Fail-Safe Mechanisms: Automatically reverts to pre-fault state in case of communication failure .
• Environmental Sustainability:
  • RoHS-Compliant: Lead-free design reduces ecological impact .
  • Energy Efficiency: <1 W standby power consumption during low-activity periods .