The Interface Technology IO110VXI is a single-slot C-size VXIbus interface module designed for data acquisition and control in industrial automation, test and measurement, and process control environments. It integrates external devices with VXIbus systems through four 50-pin IDC connectors, each delivering 32 I/O channels plus handshake and tri-state control lines. The module supports TTL, CMOS, TTL Open Collector, Differential TTL, and Switched HV outputs with user-configurable termination and RS-422-A compliant differential I/O.
Technical Specifications
• Form Factor: Single-slot C-size VXI module
• I/O Connectors: Four 50-pin IDC connectors per module
• Channels per Connector: 32 I/O channels
• Data Field Width: User-defined from 1 bit to 32 bits
• Maximum Parallel Read: 128-bit wide with single command (64 channels for IO50 series)
• Control Lines per Connector: Byte Available, Byte Request, Data Valid, Data Acknowledge, and 4 Tri-state Control Lines
• Logic Families: TTL, CMOS, TTL Open Collector, Differential TTL, Switched HV Outputs
• Differential Standard: RS-422-A compliant
• I/O Termination: User configurable
– Key Features
• Simultaneous reads or writes on any size and number of data fields
• Double-latched outputs ensure all channels transition simultaneously
• Latching inputs enable full 128-bit parallel reads with single command
• Tristate output control emulates bi-directional data and control buses
• External I/O handshaking support
• Memory-mapped VXIbus registers for high-speed operation
• VME dual-ported RAM and register support
• VXI TTLTRG line integration for module linking
• Autonomous operation via memory emulation and block I/O modes
• SCPI-compatible command set for setup and control
• Direct VME read/write capability for register-based instruments
• Mezzanine board space for custom I/O drivers and logic formats
– Typical Applications
• Process control systems
• Industrial automation
• Test and measurement
• Microprocessor-based instrumentation
– Compatibility & Integration
The IO110VXI operates within the IO50VXI through IO130VXI product family and integrates directly with VXIbus architectures. It supports both high-level SCPI command programming and direct register-level control for flexible instrument integration.
