The NI TB-2708 PXI Terminal Block serves as a direct connection interface for National Instruments S Series data acquisition devices, providing access to analog input/output, digital I/O, and trigger signals. This terminal block eliminates external cabling by connecting directly to the front panel I/O connector of compatible PXI modules, simplifying system integration while maintaining signal integrity in laboratory and industrial measurement environments.
– Technical Specifications
• Manufacturer Part Number: 778823-01
• Connectors: Nine (9) SMB connectors (analog signals), one (1) 14-pin I/O connector (digital), one (1) 68-position SCSI-II female connector, one (1) 14-pin Molex MicroFit connector
• Analog Channels: Four (4) inputs with simultaneous sampling; two (2) outputs
• Input Configuration: Floating and ground-referenced signals supported; configurable switch for floating source measurement (5 kΩ resistor in parallel with 0.1 μF capacitor)
• Digital I/O: Programmable Function Input (PFI) lines and dedicated trigger signals
• Trigger & Clock Access: AI Start Trigger, AI Sample Clock, Counter 0 Output
• Maximum Input Voltage: 42 Vpeak or 60 VDC
• Dimensions: 4.2 × 3.4 × 0.8 inches
• Weight: 5.1 oz
• Operational Shock: 30 g peak, half-sine, 11 ms pulse (per IEC-60068-2-27)
– Key Features
• Direct front-panel connection eliminates need for external cabling
• Simultaneous four-channel analog acquisition capability
• Mixed-signal access through dedicated digital and analog connectors
• Analog and digital triggering support
• Floating source measurement configuration available
• ESD-sensitive; operator grounding required during signal connections
• Not suitable for explosive atmospheres or environments containing flammable gases or fumes
– Compatibility & Integration
The TB-2708 connects directly to NI PXI-6115 and PXI-6120 S Series DAQ devices. Secure the PXI module in the chassis before aligning and connecting the terminal block to the front panel I/O connector.
