Digital guide
You are here:
NI BNC-2110
Product Name
National Instruments BNC-2110 shielded BNC adapter and connector block for multifunction and analog-output DAQ devices.
Product Overview
The BNC-2110 simplifies signal connection between transducers, sensors and NI DAQ hardware. It converts a 68-pin DAQ interface into BNC coaxial connectors and supplementary screw terminals while maintaining shielded, low-noise measurement paths.
Detailed content
Technical Specifications
Compatibility: 68-pin E Series, M Series, S Series and analog-output devices such as NI 671x, 672x and 673x; 100-pin E Series devices with appropriate cable and configuration.
Connector type: 68-pin SCSI-class DAQ side to front-end BNC and spring terminal.
Analog inputs: BNC connections for differential analog input channels according to the connected DAQ device.
Analog outputs: BNC outputs for supported AO channels.
Digital I/O: selected digital lines on BNC where supported, remaining digital lines on screw terminals.
Wire range: 28 to 16 AWG for screw-terminal sections.
Mounting: DIN rail or desktop use.
Shielding: metalized enclosed housing for electromagnetic noise reduction.
Product code reference: 777643-01.
Functional Features
BNC coaxial front end reduces setup time for laboratory and test benches.
Screw terminals provide flexible access to auxiliary analog and digital signals.
Shielded architecture preserves signal integrity in electrically noisy environments.
DIN-rail or bench placement supports both permanent and temporary test setups.
Application Scenarios
Laboratory signal conditioning and sensor interfacing.
Production test, validation benches and prototype measurement.
Analog output generation, waveform verification and mixed digital I/O testing.
Performance Parameters
Actual voltage ranges, channel counts, sampling rates and resolution are determined by the connected NI DAQ device, not by the BNC-2110 itself.
BNC coaxial paths provide controlled impedance and improved noise rejection for analog measurements.
Material Composition
Enclosure uses shielded metalized material.
BNC connectors use nickel- or gold-plated brass contacts.
Terminal blocks use insulated thermoplastic with tin-plated copper clamp elements.
Structural Characteristics
Desktop or DIN-rail adapter body with labeled front-panel BNC rows.
Rear SCSI or DAQ cable interface for direct connection to the data acquisition board.
Spring-terminal section for auxiliary I/O and user-defined wiring.
Working Principle
The DAQ device generates and acquires electrical signals through its 68-pin or 100-pin interface.
The BNC-2110 maps those signals to coaxial BNC ports and screw terminals.
Shielding and controlled routing preserve signal reference, reduce crosstalk and simplify probe connection.
Installation Requirements
Confirm DAQ device family and use the correct 68-pin or 100-pin cable.
Mount on DIN rail or stable bench with adequate clearance for cables.
Use 28 to 16 AWG wire for screw terminals and a small flathead screwdriver for tightening.
Connect shield drains according to NI grounding recommendations for the measurement type.
Usage Precautions
Do not exceed the voltage and current limits of the connected DAQ device.
Terminate unused analog inputs to avoid floating-channel noise.
Keep high-voltage or high-current wiring separated from low-level signal BNC lines.
Verify cable pinout before applying power to prevent channel damage.
Perform functional checkout with known calibration source before production use.
