The Abaco Systems / VMIC VMIVME-5531S-000 is a slave VMEbus fiber-optic repeater link that extends VME communication across isolated chassis via fiber-optic cable. This two-board set enables VME slave I/O boards in a secondary chassis to be controlled by a VME master in a primary chassis, delivering software-transparent operation with total electrical isolation between systems. The link supports unidirectional link control with bidirectional data transfers and operates plug-and-play with no software overhead.
Technical Specifications
• Maximum Transfer Rate: 1 MB/s
• Maximum Fiber-Optic Cable Length: 6,560 ft (2,000 m)
• Master Board Form Factor: 6U VMEbus
• Slave Board Form Factor: 6U or 3U VMEbus
• VMEbus Addressing Support (6U Slave): 16-, 24-, and 32-bit
• VMEbus Data Transfers (6U Slave): 8-, 16-, and 32-bit
• VMEbus Addressing Support (3U Slave): 16-, 24-bit
• VMEbus Data Transfers (3U Slave): 8-, 16-bit
• Isolation: Total electrical isolation with high-voltage isolation between VME systems
• Cable Configuration: Two fiber-optic cables per link; no EMI generation
• System Reset: Master board link reset switch allows SYSRESET assertion in secondary chassis independent of primary; primary SYSRESET propagates to all secondary chassis
– Key Features
• Software-transparent communication eliminates software overhead
• Star configuration support enables linking multiple VME systems
• Accepts only non-interrupting slave boards in secondary chassis
• Form, fit, and function replacement for VMIVME-5530
• EMI-free fiber-optic cabling
– Typical Applications
• Industrial control systems requiring chassis expansion
• Military applications demanding electrical isolation
• Geographically distributed VME systems
• High-reliability multi-chassis VME architectures
– Compatibility & Integration
Fully compatible with VMEbus standards. Does not support slave interrupts. Operates as a two-board repeater link set with master and slave configurations.
