The NI TBX-68 is an unshielded I/O connector block that bridges field signals to National Instruments 68-pin data acquisition devices. It provides 68 screw terminals for direct signal wiring and a 68-pin male SCSI connector for seamless integration with NI DAQ systems. DIN-rail mountable in industrial environments, the TBX-68 operates under NI-DAQmx driver control and supports programming via LabVIEW and LabWindows/CVI.
Technical Specifications
• Screw Terminals: 68 channels
• I/O Connector: 68-pin male SCSI
• Maximum Voltage: 30 Vrms, 42 Vpeak, or 60 VDC per terminal
• Wire Gauge: 12–30 AWG
• Terminal Torque: 0.8 N·m (7 lb·in.)
• Dimensions: 5.02 in. × 4.93 in. × 2.36 in. (127 mm × 125 mm × 60 mm)
• Weight: 8.8 oz (251 g)
• Operating Temperature: 0 to 70 °C
• Storage Temperature: -20 to 70 °C
• Humidity Range: 5 to 90% RH (non-condensing)
• Pollution Degree: 2
• RoHS Compliant: Yes
– Key Features
• Plastic base construction for environmental protection
• 35 mm DIN-rail mounting hardware included
• Electrically and thermally rated for indoor applications
• Supports wire gauges from 12 to 30 AWG
• IEC 61010-1, EN 61010-1, UL 61010-1, and CSA 61010-1 certified
– Compatibility & Integration
Works with all National Instruments 68-pin DAQ devices and the SHC68-68-EPM cable. Configuration and device management handled through Measurement & Automation Explorer (MAX). Requires NI-DAQmx driver software.


















