Product Short Description
The GE VMIVME-5576 (now maintained by Abaco Systems) is a VMEbus-compatible reflective memory board that enables deterministic, real-time data sharing among up to 256 independent nodes over a high-speed fiber-optic ring . Each node instantly rewrites its local SRAM and simultaneously broadcasts the update to every other node, eliminating software overhead and I/O bottlenecks.
Description
Technical Specifications
• Memory Capacity: 256 Kbyte to 1 Mbyte on-board SRAM (user-selectable)
• Fiber Speed: 170 Mbaud serial optical link
• Data Throughput:
– 6.2 Mbyte/s without redundancy
– 3.2 Mbyte/s with redundancy enabled
• Fiber Wavelength: 1310 nm or 1550 nm (model dependent)
• Node Count: 256 nodes max per ring
• Inter-node Distance: up to 2 000 m on multi-mode fiber
• Memory Access: A24, A32, D8, D16, D32 VMEbus addressing
• Interrupt Generation: Any node can trigger an interrupt in any or all other nodes with a single command
• FIFO Buffers: Dual transmit & receive FIFOs smooth peak-rate traffic and sustain throughput under load
• Error Handling: Hardware CRC and optional redundant transmission suppress bit errors without processor intervention
• Power Requirement: 5 VDC ±5 %, typical 1.2 A
• Form Factor: 6U VME single-slot, conforms to ANSI/VITA 1-1994
• Operating Temperature: 0 °C to +70 °C commercial; −40 °C to +85 °C rugged variants available
• MTBF: > 200 000 h at 40 °C per MIL-HDBK-217F
• Memory Capacity: 256 Kbyte to 1 Mbyte on-board SRAM (user-selectable)
• Fiber Speed: 170 Mbaud serial optical link
• Data Throughput:
– 6.2 Mbyte/s without redundancy
– 3.2 Mbyte/s with redundancy enabled
• Fiber Wavelength: 1310 nm or 1550 nm (model dependent)
• Node Count: 256 nodes max per ring
• Inter-node Distance: up to 2 000 m on multi-mode fiber
• Memory Access: A24, A32, D8, D16, D32 VMEbus addressing
• Interrupt Generation: Any node can trigger an interrupt in any or all other nodes with a single command
• FIFO Buffers: Dual transmit & receive FIFOs smooth peak-rate traffic and sustain throughput under load
• Error Handling: Hardware CRC and optional redundant transmission suppress bit errors without processor intervention
• Power Requirement: 5 VDC ±5 %, typical 1.2 A
• Form Factor: 6U VME single-slot, conforms to ANSI/VITA 1-1994
• Operating Temperature: 0 °C to +70 °C commercial; −40 °C to +85 °C rugged variants available
• MTBF: > 200 000 h at 40 °C per MIL-HDBK-217F
Functional Highlights
• Software Transparency: Writes to local SRAM are mirrored network-wide without driver intervention.
• Deterministic Latency: Predictable sub-millisecond update times across all nodes.
• Hot-Redundant Rings: Automatic failover to backup fiber path on link failure.
• Zero CPU Overhead: Network protocol handled entirely in hardware.
• Plug-and-Play Expansion: Additional nodes can be inserted while the ring remains active.
• Software Transparency: Writes to local SRAM are mirrored network-wide without driver intervention.
• Deterministic Latency: Predictable sub-millisecond update times across all nodes.
• Hot-Redundant Rings: Automatic failover to backup fiber path on link failure.
• Zero CPU Overhead: Network protocol handled entirely in hardware.
• Plug-and-Play Expansion: Additional nodes can be inserted while the ring remains active.
Typical Applications
• Defense & Aerospace: Radar signal processing, electronic warfare, mission computers
• Industrial Control: Real-time coordination of multi-axis CNC lines, robotic cells
• Energy Grid: Wide-area phasor measurement units (PMU) and substation automation
• Transportation: High-speed railway interlocking, maglev control systems
• Scientific Instruments: Fusion reactor diagnostics, particle accelerator timing networks
• Defense & Aerospace: Radar signal processing, electronic warfare, mission computers
• Industrial Control: Real-time coordination of multi-axis CNC lines, robotic cells
• Energy Grid: Wide-area phasor measurement units (PMU) and substation automation
• Transportation: High-speed railway interlocking, maglev control systems
• Scientific Instruments: Fusion reactor diagnostics, particle accelerator timing networks
Ordering Information
• Model: VMIVME-5576-000 (standard)
• Variants:
– 1310 nm multi-mode fiber (≤ 500 m)
– 1550 nm single-mode fiber (≤ 2 000 m)
• Kit Contents: Reflective memory board, 2 m duplex ST fiber jumper, driver CD, calibration certificate
• Lifecycle Status: Restricted Production Phase (RPP) since 31 Dec 2009; documentation and long-term support remain available .
• Model: VMIVME-5576-000 (standard)
• Variants:
– 1310 nm multi-mode fiber (≤ 500 m)
– 1550 nm single-mode fiber (≤ 2 000 m)
• Kit Contents: Reflective memory board, 2 m duplex ST fiber jumper, driver CD, calibration certificate
• Lifecycle Status: Restricted Production Phase (RPP) since 31 Dec 2009; documentation and long-term support remain available .
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