NI 68M-50F Step/Servo Bulkhead Cable Adapter

The NI 68M-50F Step/Servo Bulkhead Cable Adapter interfaces 68-pin National Instruments motion control devices with 50-pin servo drives and stepper motor controllers. This bulkhead-mountable adapter bridges NI motion control hardware to third-party accessories and legacy drive systems, delivering a secure panel-mounted connection point for distributed control architectures.

– Technical Specifications

• Connector Configuration: 68-pin male to 50-pin female
• Pin Spacing: 0.1 by 0.1 inch (50-pin connector)
• Form Factor: Bulkhead cable adapter

– Key Features

Configuration switches enable dual operational modes. Step/Servo selection switches allow independent per-axis configuration between STEP and SERVO modes. Breakpoint/Trigger switches configure each axis as either a trigger input (TRIG) or breakpoint output (BP), supporting both interrupt-driven and output-gated motion sequences.

The adapter supports signal mapping from 68-pin NI cables to the 50-pin connector, with documentation detailing application-specific pinouts for M Series DAQ devices and motion control configurations.

– Typical Applications

Step/servo adapter applications include closed-loop servo control, open-loop stepper motion, and mixed-mode multi-axis systems. The bulkhead mounting design accommodates panel integration in distributed motion systems, industrial control enclosures, and OEM test platforms requiring standardized connector interfaces.

– Compatibility & Integration

The adapter is designed for National Instruments motion control systems and latches to SH1006868 64-channel devices and PCMCIA platforms via SHC68-68-EP or SHC68U-68-EP connectors. It maintains compatibility with NI cables including SH68-68-EP, SHC68-68-EP, SHC68U-68-EP, and the MIO leg of the SHC1006868 multi-function I/O cable adapter.

The 68M-50F connects NI motion devices to 50-pin servo and stepper drives, including legacy nudrives series. A separate MIO-configured variant (P/N 184670-01) addresses multifunction DAQ applications requiring 68-to-50-pin bridging.