Abaco Systems / VMIC VMIVME-5588-210 High-Speed Fiber-Optic 1.2 Gbaud Reflective Memory with Interrupts

The Abaco Systems / VMIC VMIVME-5588-210 is a high-speed fiber-optic reflective memory board for VMEbus systems that enables deterministic, real-time data sharing across distributed processing nodes. Data written to the board's memory is automatically reflected to all connected nodes, creating a software-transparent shared memory environment with minimal CPU overhead. Operating at 1.2 Gbaud serial link speed, the board delivers sustained data transfer rates up to 29.5 Mbyte/s (non-redundant) or 14.8 Mbyte/s (redundant mode with error detection).

It supports up to 256 nodes across extended distances: 10 km via single-mode fiber, 1,000 ft via multimode fiber, or 30 m via twinax cable.

Technical Specifications

• Serial link speed: 1.2 Gbaud


• Data transfer rate (non-redundant): Up to 29.5 Mbyte/s


• Data transfer rate (redundant): Up to 14.8 Mbyte/s


• Maximum nodes: 256


• On-board SDRAM: 256 Kbyte to 16 Mbyte (configurable)


• Fiber connectivity: Single-mode up to 10 km; multimode up to 1,000 ft


• Twinax connectivity: Up to 30 m


• Operating temperature: 0 to +55 °C (0 to 65 °C with forced air cooling)


• Storage temperature: -20 to +85 °C


• Form factor: Single-slot VMEbus, Dual Eurocard (9.2 in height × 6.3 in depth × 0.8 in thickness)

Key Features

• Interrupt generation between nodes - any node can trigger interrupts to single or all nodes


• Redundant transfer mode with error probability of 1.64 × 10⁻²⁰ across dual transmissions


• Transmit and receive FIFOs optimize peak-rate buffering and CPU utilization


• Local SDRAM enables fast read access to stored data

Compatibility & Integration Designed for VMEbus-based systems, the VMIVME-5588-210 integrates with other VMIC/Abaco Systems products and supports multiple operating systems including VxWorks, Solaris, IRIX, Windows NT, and MS-DOS through appropriate driver support.