The NI BNC-2120 is a shielded connector block engineered for 68-pin M Series, S Series, and B Series DAQ devices. It provides signal routing through multiple BNC connectors while maintaining signal integrity in electromagnetically demanding environments. An integrated function generator enables on-board stimulus generation, eliminating the need for external signal sources and streamlining test configurations.
– Technical Specifications
Host Interface
• 68-pin VHDCI male connector for direct connection to NI DAQ devices
Connectivity
• Multiple BNC connectors for analog input, analog output, digital I/O, and timing signals
• Optional screw terminals for custom wiring configurations
• Dedicated BNC output for integrated function generator
Integrated Function Generator
• Waveform types: sine, square, triangle
• Frequency range and amplitude specifications dependent on connected DAQ device capabilities
• Software-controllable amplitude and DC offset via NI-DAQmx
• Synchronization support with DAQ device sampling clocks and digital triggers
Signal Integrity
• Integrated shielding minimizes electromagnetic interference (EMI) and radio frequency interference (RFI)
• Signal-level compatibility with M Series, S Series, and B Series DAQ voltage and logic levels
– Key Features
• Shielded BNC connectivity for secure, low-noise signal routing
• Function generator integrated into connector block eliminates external instrumentation
• Software-configurable waveform generation through NI-DAQmx driver
• Synchronized timing with DAQ device clocks and triggers for deterministic stimulus-response testing
• Flexible terminal options supporting both BNC and screw-terminal connections
– Typical Applications
• Stimulus-response testing with synchronized signal generation
• System calibration and diagnostics
• Analog and digital signal acquisition with reduced external hardware
• Real-time signal conditioning in measurement systems
– Compatibility & Integration
The BNC-2120 interfaces exclusively with NI 68-pin M Series, S Series, and B Series DAQ devices through direct VHDCI connection. Signal routing and function generator configuration are managed through NI-DAQmx driver software.
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