The NI SCXI-1300 is a general-purpose terminal block that serves as the interface between field wiring and SCXI signal conditioning modules. It organizes sensor and signal connections through screw terminals, supporting 32 differential input pairs and providing integrated cold-junction compensation for thermocouple measurements. Built for industrial environments and repeated connection cycles, the SCXI-1300 streamlines signal termination and system maintenance across laboratory and production test applications.
Technical Specifications
Signal Connections
• 32 pairs of screw terminals for differential inputs
• Two screw terminals for chassis ground connection to SCXI module
• Solder lug for chassis ground (safety ground)
• Dedicated screw terminals for SCXIbus GUARD, module OUTPUT, and AOREF
• Field wire gauge: 26–16 AWG maximum
• Output connector: 96-pin DIN interface to SCXI module
Cold-Junction Temperature Sensor
• Accuracy: ±1.3 °C (0 to 50 °C range)
• Repeatability: ±0.5 °C
• Output: 10 mV/°C (0 to 0.5 V across 0 to 50 °C)
Physical and Environmental
• Dimensions: 49.3 cm × 4.3 cm × 18.8 cm
• Operating temperature: 0 to 50 °C
• Storage temperature: -20 to 70 °C
• Relative humidity: 10 to 90% non-condensing
• Mounts to front of SCXI modules
Safety Compliance
• IEC 61010-1, EN 61010-1, UL 61010-1, CAN/CSA-C22.2 No. 61010-1
– Key Features
• Screw terminal construction rated for industrial duty cycles
• Integrated CJC sensor eliminates external compensation hardware
• 96-pin DIN connector ensures direct module coupling
• Wide AWG support accommodates field wiring standards
• Field-calibration capable
– Typical Applications
• General-purpose voltage signal acquisition
• Thermocouple termination and cold-junction compensation
• Laboratory and industrial data acquisition systems
• Sensor wiring organization in test environments
• Maintenance and expansion of existing SCXI installations
• Educational and research instrumentation
– Compatibility & Integration
The SCXI-1300 connects to SCXI-1100, SCXI-1102 (including B/C variants), SCXI-1104 (including C variant), and SCXI-1181K modules.
