The National Instruments SCC-68 is a 68-pin signal conditioning carrier that connects directly to M Series and E Series DAQ devices, providing a modular platform for sensor signal conditioning and data acquisition. The unit features four SCC slots for integrating specialized signal conditioning modules, 68 screw terminals for I/O interfacing, a general breadboard area, and bus terminals for external power and grounding. An integrated temperature sensor (terminals 70–71) enables cold-junction compensation for thermocouple measurements. The SCC-68 operates on 5 VDC at 1 mA typical current (no signal conditioning installed) and supports a wide range of conditioning modules including thermocouple, strain gauge, RTD, frequency input, current input, voltage attenuator, lowpass filter, load cell, accelerometer, feedthrough, SPDT relay, isolated digital I/O, and isolated voltage input modules.
Technical Specifications
• Manufacturer Part Number: 779475-01
• Module Slots: Four SCC slots
• Power: 5 VDC input; 1 mA typical (no modules installed)
• Voltage Range: 4.75 VDC to 5.25 VDC
• Channel-to-Earth Maximum Working Voltage: 11 VDC (CAT I)
• Operating Temperature: 0 to 55 °C
• Storage Temperature: –20 to 70 °C
• Vibration (Operating): 0.3 grms (5 to 500 Hz)
• Vibration (Non-Operating): 2.4 grms (5 to 500 Hz)
• Dimensions: 9.63 in. × 7.00 in. × 2.09 in.
• Weight: 6 oz (device); 1 lb 6 oz (shipping)
• Certifications: RoHS compliant
– Key Features
• Screw terminal interface with 68 pins for direct signal routing
• Integrated breadboard area for flexible signal connections
• Cold-junction compensation terminal (CJC+) on terminal 70 for thermocouple applications
• Stackable design (without back rubber feet attached)
• Bus terminals for external power and ground distribution
– Typical Applications
• Thermocouple and RTD temperature measurement
• Strain gauge and load cell signal conditioning
• Frequency and current input measurement
• Isolated digital I/O and voltage measurement
• Multi-channel sensor integration in desktop DAQ systems
– Compatibility & Integration
Designed exclusively for National Instruments M Series and E Series DAQ devices. Supports all standard NI SCC signal conditioning modules. Direct 68-pin connector interface ensures proper signal routing and power delivery.
