The NI SHC68-C68-S is a 0.5-meter shielded cable assembly that connects National Instruments motion controllers to compatible motor drives, universal motion interfaces, and breakout fixtures. Dual 68-pin VHDCI offset male connectors terminate each end, supporting both device-side and accessory-side connections. The cable contains 34 twisted pairs rated at 30 AWG signal wire gauge with carefully controlled electrical parameters for reliable digital and analog signal transmission in motion and switching applications.
Technical Specifications
• Cable Type: Shielded assembly with 34 twisted pairs
• Connectors: 68-pin VHDCI offset male (both ends)
• Length: 0.5 meters
• Outer Diameter: 0.380 in.
• Bend Radius: 4.6 in.
• Signal Wire Gauge: 30 AWG
• Differential Impedance: 132 ohms ±10 ohms @ TDR
• Mutual Capacitance: 12.5 pF/ft maximum
• Time Delay: 1.45 ±0.05 ns/ft
– Key Features
• Basic shielding optimized for motion and switching signal integrity
• Compact VHDCI connectors for space-constrained installations
• Twisted-pair construction minimizes crosstalk and EMI coupling
• Controlled impedance and propagation delay for synchronized multi-channel applications
• Low outer diameter (0.380 in.) facilitates dense cable routing
– Typical Applications
Motion control systems requiring direct controller-to-drive connectivity. Custom breakout fixture integration with VHDCI termination. Multi-axis stepper and servo motor drive configurations. DAQ switching applications where signal isolation and pair balance are critical.
– Compatibility & Integration
Motion Controllers: NI-63xx X Series, NI-62xx M Series, NI-73xx, PXI Motion Controllers, PCI Controllers
Accessory Devices: NI MID-76xx motor drives, SSR cable adapters, MCA-7724, UMI-7774, UMI-7772, UMI-7764, PXIe-6738, PXIe-6739 (when integrated into NI-6723 systems)
