The Abaco Systems VMIVME-2127-000 is a 128-bit voltage source digital output board engineered for high-current and high-voltage applications in VMEbus-based test systems. It delivers 350 mA source capability across 128 output channels with voltage outputs spanning 7 to 35 VDC. Integrated Built-in-Test (BIT) logic enables software-controlled verification of individual channel operation, supporting rapid fault isolation and diagnostics. The board incorporates automatic overcurrent shutdown, thermal shutdown protection, and output clamp diodes to safeguard against inductive load transients. Status registers provide real-time output fault indication. External power connections are configurable at the front panel (P3 to P4) or at P2, with user-supplied warming resistor sockets available.
– Technical Specifications
• Output Channels: 128 bits
• Output Type: Voltage source with emitter-follower drivers
• Output Voltage Range: 7 to 35 VDC
• High-Current Capability: 350 mA source per channel
• Breakdown Voltage: 35 V
• Form Factor: 6U VMEbus
• VMEbus Compliance: ANSI/IEEE STD 1014-1987, IEC 821 and 297
• Address/Data Configuration: A24:A16:D32/D16/D08 (EO); slave mode 39/3D:29/2D
– Key Features
• Built-in-Test (BIT) logic for channel-level operational verification
• Automatic overcurrent shutdown protection
• Thermal shutdown protection
• Output clamp diodes for inductive flyback suppression
• Output fault indication via status register
• Fail LED on front panel
• Multiple connector options: 96-pin and 64-pin IDC, or 96-pin discrete wire connectors for P3/P4
– Typical Applications
VMEbus-based test and measurement systems requiring high-current switching, industrial control modules, and systems demanding integrated diagnostics and protection.
– Compatibility & Integration
Fully compatible with VMEbus architecture supporting 32-bit, 16-bit, and 8-bit data transfers. Integrates with intelligent I/O controllers within VMEbus environments.
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