The Abaco Systems / VMIC VMIPCI-5588-101 is a high-speed fiber-optic reflective memory interface card for real-time distributed data sharing across networked systems. Operating at 1.2 Gbaud over single-mode fiber links, it delivers 29.5 Mbyte/s throughput without redundancy and 14.8 Mbyte/s with error suppression enabled. The card implements transparent reflective memory architecture—data written to local memory automatically mirrors across up to 256 nodes over distances to 10 km, with no processor overhead. Multi-level interrupt support enables event-driven synchronization: any node can trigger interrupts on any peer or all network nodes using a single command, with four user-definable interrupt levels available.
Technical Specifications
• Serial Communication Link Speed: 1.2 Gbaud
• Data Transfer Rate (non-redundant): 29.5 Mbyte/s
• Data Transfer Rate (with redundancy): 14.8 Mbyte/s
• Maximum PCI Target Transfer Rate: 44 Mbyte/s
• Maximum DMA Initiator Transfer Rate: 132 Mbyte/s
• Sustained DMA Initiator Transfer Rate: 33 Mbyte/s
• Reflective Memory Capacity: 256 Kbyte to 16 Mbyte configurable SDRAM
• Memory Access Width: D32:D16:D8
• Network Nodes (maximum): 256
• Max Distance (Single-Mode Fiber): 10,000 meters
• Max Distance (Multimode Fiber): 1,000 feet (304.30 m)
• Max Distance (Twinax Cable): 30 meters
• User-Definable Interrupt Levels: 4
– Key Features
• Fiber-optic serial operation at 1.2 Gbaud
• Hardware-transparent reflective memory with automatic node synchronization
• Error detection with optional redundant transmission mode
• Interrupt generation independent of source node—any node can signal any or all peers
• Interrupt ordering tied to data delivery for deterministic synchronization
• Zero processor involvement in memory coherency operations
– Typical Applications
Real-time distributed control systems, multi-node data acquisition networks, synchronized instrumentation clusters, and low-latency event-driven architectures requiring transparent memory sharing across geographically separated installations.
– Compatibility & Integration
PCI interface. Compatible with VME-5588DMA family product variants. Supports single-mode and multimode fiber as well as twinax cable media for flexible network topologies.
