The Abaco Systems / VMIC VMIVME-2128-000 is a 128-channel high-voltage digital output board for VMEbus systems, delivering software-controlled sink outputs with integrated fault isolation and diagnostics. Each channel supports 5 to 48 VDC operation at 600 mA continuous sink current, with automatic surge protection and thermal shutdown safeguards. Built-in-Test (BIT) logic enables per-channel verification and fault isolation under program control, supported by a front-panel Fail LED that illuminates at power-up and extinguishes upon successful diagnostic completion.
– Technical Specifications
• Output Channels: 128 digital outputs organized as sixteen 8-bit ports
• Output Type: High-voltage, high-current sink with open collector drivers
• Voltage Range: 5 to 48 VDC (absolute maximum 55 V)
• Sink Current: 600 mA per channel
• Surge Protection: Automatic shutdown with inrush tolerance to 990 mA before shutdown
• Thermal Protection: Integrated thermal shutdown
• Flyback Protection: Output clamp diodes
• Power Consumption: 3.0 A typical at 5 VDC (user-supplied load voltage separate)
• Data Polarity: Positive true (logic 1 activates output driver)
• Form Factor: Double Eurocard 6U, 160 mm × 233.35 mm
• Cooling: Forced air convection required
• Operating Altitude: Up to 10,000 ft
– Key Features
• Built-in-Test logic for real-time channel verification
• Software-controlled fault isolation and diagnostics
• Sixteen addressable ports supporting 8/16/32-bit data transfers
• Twenty jumpers for base address selection
• One jumper for standard or short I/O access configuration
• Output sockets for user-supplied warming resistors
• Two 96-pin female connectors (P3, P4)
– Compatibility & Integration
Fully compliant with ANSI/IEEE STD 1014-1987 and IEC 821/297 VMEbus specifications. Supports A24:A16 addressing with D32/D16/D08 data transfer modes. Compatible with Intelligent I/O Controllers. Accepts IDC ribbon connectors (ERNI No. 913 031) or discrete wire termination via Harting mating connectors.
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