Abaco Systems / VMIC VMIVME-5588-110 High-Speed Fiber-Optic 1.2 Gbaud Reflective Memory with Interrupts

The Abaco Systems / VMIC VMIVME-5588-110 is a high-speed fiber-optic reflective memory board for VMEbus systems delivering 1.2 Gbaud serial performance in real-time data sharing applications. The two-slot 6U board supports up to 256 independent nodes in a daisy-chained, fiber-optic ring topology, with data transfer rates of 29.5 Mbyte/s (standard) or 14.8 Mbyte/s (redundant transfer mode). On-board SRAM/SDRAM ranges from 256 Kbyte to 16 Mbyte with configurable addressing via A24:A32:D32:D16:D8 memory access.

Technical Specifications

• Serial Data Rate: 1.2 Gbaud


• Throughput: Up to 29.5 Mbyte/s without redundancy; 14.8 Mbyte/s with redundant transfer


• Maximum Nodes: 256 independent systems


• On-board Memory: Configurable 256 Kbyte to 16 Mbyte (SRAM/SDRAM)


• Node Addressing: Unique ID 0–255 (jumper-selectable)


• Operating Temperature: 0 to 65 °C with forced air cooling


• Storage Temperature: -40 to 85 °C


• Relative Humidity: 20 to 80% non-condensing


• MTBF: 88,005 hours at 217 °F

Key Features

• Reflective Memory Architecture: Data written to one node automatically broadcasts to all network nodes; software-transparent operation with zero processor overhead.


• Interrupt Support: Three user-definable interrupt levels. Any node can generate interrupts to individual nodes or multicast to all nodes. Interrupts follow data transmission to ensure reception before acknowledgment.


• Fiber-Optic Options: Multimode fiber (up to 1,000 ft between nodes), single-mode fiber with SC connectors (up to 10 km), or twinax cable with 9-pin D-type connectors (up to 30 m).


• FIFO Buffering: Transmit and Receive FIFOs optimize CPU and bus performance during peak data rates.


• Error Suppression: Redundant transmission mode available for error detection.

Typical Applications High-speed distributed real-time systems requiring deterministic, low-latency data sharing across multiple processors in industrial, aerospace, and defense environments.

Compatibility & Integration VMEbus-compatible, two-slot 6U form factor. Software-compatible with VMIVME-5578.