The NI CB-68LPR is a 68-pin terminal block that connects digital and trigger I/O signals from external field devices to National Instruments 68-pin DAQ systems. It features 68 screw terminals with a right-angle mounted male SCSI connector, enabling direct wiring integration via a single connector interface. The terminal block supports wire gauges from 12 to 30 AWG (0.0509 to 3.31 mm²) with a screw torque specification of 0.5 N·m (4.4 lb·in.). Mounting options include standoff feet for desktop deployment or custom panel integration. As an unshielded accessory, the CB-68LPR must be housed within an appropriate enclosure—such as the NI CA-1000—for optimal performance and signal protection.
Technical Specifications
• Connector: 68-pin male SCSI
• I/O Terminals: 68 screw terminals
• Wire Gauge Range: 12 to 30 AWG (0.0509 to 3.31 mm²)
• Torque Specification: 0.5 N·m (4.4 lb·in.)
• Dimensions: 167.6 mm × 76.2 mm × 29.2 mm (6.60 in. × 3.00 in. × 1.15 in.)
• Weight: 162 g (5.7 oz)
• Operating Temperature: 0 °C to 70 °C
• Storage Temperature: -20 °C to 70 °C
• Operating Humidity: 5% to 90% RH (non-condensing)
– Key Features
• Rated for <60 VDC; voltages exceeding 30 Vrms / 42 Vpk / 60 VDC will damage the terminal block, connected devices, and host computer
• Right-angle connector orientation designed for CA-1000 enclosure integration
• 1-to-1 pin mapping between terminal block (J1, J10, etc.) and DAQ device (pins 1, 2, etc.)
• Configurable via National Instruments Measurement & Automation Explorer (MAX)
– Compatibility & Integration
The CB-68LPR connects directly to 68-pin National Instruments DAQ devices in the M Series and X Series families. Pin mapping follows a direct 1-to-1 correspondence with the target DAQ board; refer to the specific DAQ device manual for pinout details. Installation requires a compatible 68-pin DAQ device, wire insulation strippers, wire cutters, and a 0.125 in. flathead screwdriver.
