The Curtiss-Wright / Systran SCRAMNet A-H-PR-BCPCI PCI Module is a high-performance shared-memory interface for real-time distributed computing, simulations, data acquisition, and industrial control systems. Built on PCI Local Bus Specification Rev. 2.1, it enables ultra-low-latency, deterministic data synchronization across up to 256 networked nodes using replicated shared-memory architecture. The module eliminates traditional networking protocol overhead, allowing simultaneous access to shared data across all nodes with sub-microsecond system latency.
## Technical Specifications
• **Bus Interface:** PCI Local Bus Specification, Rev. 2.1, single-slot configuration
• **Shared Memory:** 4 KB or 128 KB on-board; upgradeable via SIMM/expansion cards to 512 KB, 1 MB, 2 MB, 4 MB, or 8 MB
• **Data Throughput:** 16.7 MB/sec
• **Node Latency:** 250 ns/node base; 250 ns to 800 ns (4-byte packet), 250 ns to 1.5 µs (16-byte packet), 250 ns to 4.2 µs (64-byte packet), 250 ns to 16 µs (256-byte packet), 250 ns to 61.8 µs (1 KB packet)
• **Maximum Nodes:** 256
• **Power Supply:** +5 VDC, 3 A
• **Operating Temperature:** 0°C to 40°C
• **Operating Humidity:** 10% to 90% non-condensing
## Key Features
• Replicated shared-memory architecture minimizes collisions and protocol overhead
• Flexible transmission media: coax (SMA connectors, 30 m max separation) or fiber optic (standard 62.5 µm multimode, ST connectors, 300 m max separation; 1300 nm extended-range option to 3500 m)
• Versatile media interface card supporting both coax and fiber-optic configurations
• Two external trigger outputs (26.64 ns pulse width, TTL-compatible): host-access triggered and network-write triggered
• Form factors: standard PCI, PMC (2.913″ × 5.866″), SBus (3.299″ × 5.760″), rehostable configurations
## Typical Applications
Real-time simulation and testing, high-speed data distribution in distributed control networks, low-latency telemetry systems, deterministic industrial automation.
## Compatibility & Integration
Compatible with standard PCI-based computer systems. Single-slot installation. Supports both short-distance coax and long-distance fiber-optic node interconnection.
