Abaco Systems / VMIC VMIPMC-5565-010 Ultrahigh Speed Fiber-Optic Reflective Memory with Interrupts Module

The Abaco Systems / VMIC VMIPMC-5565-010 is an ultrahigh-speed fiber-optic reflective memory module that enables deterministic, real-time data sharing across distributed systems with up to 256 nodes. Operating independently of host processor involvement, the module facilitates transparent data transfers via a high-speed fiber-optic network while minimizing I/O overhead and optimizing system performance. It supports configurable packet sizes from 4 to 64 bytes, achieving network transfer rates between 43 Mbyte/s and 174 Mbyte/s, with a serial connection speed of 2.12 Gbaud.

Technical Specifications

Network Performance
• Maximum network transfer rate: 43 Mbyte/s (4-byte packets) to 174 Mbyte/s (64-byte packets)
• Serial connection speed: 2.12 Gbaud
• Dynamic packet size: Configurable 4 to 64 bytes
• Maximum nodes supported: 256
• Multimode fiber distance: Up to 300 meters
• Single-mode fiber distance: Up to 10 km

On-Board Memory
• SDRAM configurations: 64 Mbyte, 128 Mbyte, or 256 Mbyte
• 64 Mbyte SDRAM reflective memory with parity
• Local reads provide fast access; writes stored locally and broadcast across network

Interrupts and Control
• Four user-definable interrupt levels
• Interrupt transfers to one or more nodes via byte register writes
• Interrupts follow data to guarantee reception before acknowledgement
• Node identification: 0–255 via jumper configuration, readable through onboard register

Interface and Architecture
• Form factor: PCI Mezzanine Card (PMC)
• PCI bus: 33 MHz/32-bit compatible
• Logic level: 3.3 V or 5.5 V
• Two independent DMA channels
• Transmit and Receive FIFOs for peak-rate buffering
• Configurable endian conversion for multiple CPU architectures
• Error management and detection capabilities

– Key Features

• Software-transparent data transfers eliminate host processor bottlenecks
• Fiber-optic isolation provides electromagnetic immunity in harsh environments
• Deterministic data rates support real-time, mission-critical applications
• Supports redundant mode operation

– Typical Applications

Distributed avionics systems, multiprocessor military platforms, real-time control networks, and data-intensive defense applications requiring low-latency, fault-tolerant communication.

– Compatibility & Integration

The VMIPMC-5565-010 integrates into PCI-based host systems with automatic address mapping and requires no dedicated host processor resources for network operation.