The NI SHC68-68-RDIO is a 1 meter shielded digital cable that connects R Series data acquisition devices to 68-pin accessories. It terminates in a 68-pin SCSI-II Female connector on one end and a 68-pin VHDCI Male connector on the other, delivering signal integrity critical for high-speed digital I/O operations.
Technical Specifications
• Cable Length: 1 Meter
• Connector Type: 68-pin SCSI-II Female to 68-pin VHDCI Male
• Shielding: Yes
• Construction: Individually twisted I/O lines with digital ground and external shielding
• Low-Leakage Rated: No
– Key Features
• Individually twisted I/O lines paired with digital ground minimize cross-talk and maintain signal fidelity across the cable run.
• External shielding provides enhanced noise immunity, protecting against electromagnetic interference in dense instrumentation environments.
• High-speed digital I/O design ensures reliable signal transmission without degradation over the 1 meter length.
– Typical Applications
This cable serves as the primary interconnect between R Series DAQ modules and external digital I/O accessories in PXI, PCI, and PCIe chassis configurations. It is suitable for applications requiring stable digital signal distribution across moderate distances without signal conditioning.
– Compatibility & Integration
The SHC68-68-RDIO integrates with the following R Series devices:
• cRIO-9151 R Series Expansion Chassis
• PXI/PCI 783xR and 781xR families
• NI 7841R / 7842R (PCIe, PXI variants)
• NI 7851R / 7852R (PCIe, PXI variants)
• NI 7853R / 7854R (PXI variants)
• Virtex-II and Virtex-5 FPGA R-Series devices
This cable is not compatible with USB R Series devices or PXIe-782xR, PXIe-784xR, PXIe-785xR, and PXIe-786xR modules. For these PXIe platforms, the SHC68-C68-RDIO2 cable is the recommended alternative.
