The NI R6868 is a 68-pin ribbon cable engineered to connect National Instruments DAQ devices and digital I/O accessories. Available in multiple configurations with D-SUB or VHDCI connectors, this cable delivers reliable signal transmission across a range of cable lengths to accommodate diverse system layouts. The R6868 series—also referenced as R68F-68F, R68-68, or RC68-68—integrates with E Series, M Series, and X Series data acquisition platforms.
Technical Specifications
Connector Architecture
• Device End: 68-pin Female
• Accessory End: 68-pin Female
• Front-end Options: D-SUB or VHDCI connectors; SCSI-II female variants available
Cable Length Options
• 0.15 m (68-pin Female D-SUB to 68-pin Female D-SUB)
• 0.25 m (68-pin Female VHDCI to 68-pin Female D-SUB)
• 0.5 m (68-pin Female VHDCI to 68-pin Female D-SUB)
• 1 m (68-pin Female D-SUB to 68-pin Female D-SUB; 68-pin Female VHDCI to 68-pin Female D-SUB)
Physical Configuration
• Single ribbon connection topology
– Key Features
• Multiple connector type combinations reduce cable management complexity
• Standardized 68-pin interface ensures compatibility across device families
• Length variants from 0.15 m to 1 m support compact and distributed system configurations
– Typical Applications
DAQ signal routing in laboratory instrumentation, industrial control systems, and automated test environments requiring direct point-to-point connectivity between NI devices and peripheral accessories.
– Compatibility & Integration
Supported across National Instruments E Series, M Series, and X Series DAQ and digital I/O device portfolios. EU and UK Declarations of Conformity available for applicable part numbers.
