Abaco Systems / VMIC VMIPCI-5588-101 High-Speed Fiber-Optic 1.2 Gbaud Reflective Memory with Interrupts

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.