This guide addresses many common questions for the NI Digital InfiniBand cables: the SHB12X-B12X and SHB12X-H3X24. National Instruments InfiniBand cables are primarily used on the NI Digital hardware 656X series. The cables feature InfiniBand connections, with the option of a flying lead cable for custom test fixtures. Whether you are purchasing new, using a replacement cable, or creating a custom fixture, this guide provides pinouts, wire mappings, color codes, wire gauge, connector part info, and grounding or shielding information as a short summary.
Using the Digital Instrument Cable and Accessory Guides
This guide is intended to cover the most popular Infiniband cables which are designed for use with NI Digital Instruments including Digital Waveform Instruments (previous High-Speed Digital I/O), Digital Pattern Instruments and High-Speed Serial devices. It does not cover similar cables for other NI product lines, even if they share the same connectors.
Differences and Similarities between NI InfiniBand Cables
NI offers a wide range of cables to work with different Digital products, serving a variety of needs. While the wire pinout may be the same on most cables, each offers different connectors, shielding, and twisted pairs.
This section contains a summary of information frequently sought when installing or customizing Infiniband cables. More detailed information can be found in the linked additional resources below. Dimensional drawings can be downloaded for free and are available in 2D and 3D formats; they contain size measurements, part numbers, wire mappings and other helpful information. They are available in several popular formats, such as PDF, AutoCAD (.dxf, and .igs (IGES)), STEP (.stp), and .prt (Pro/E).
SHB12X-B12X Quick Specifications and Documentation
High Performance, Noise Reducing Cable. For most InfiniBand connections, NI recommends that you use the SHB12X-B12X cable. The SHB12X-B12X cable features additional shielding and specific cable pairings to improve noise performance.
Shielding: Individually shielded pairs, shielding on full cable assembly
Note to Users: The NI SHB12X-B12X cable internally reverses the pinout of the device to which it is connected. This must be accounted for when designing custom test fixtures. For more information see the Note to Users.
SHB12X-H3X24 Quick Specifications and Documentation
High Performance, Noise Reducing Cable for Custom Fixtures and Breakouts.This special InfiniBand to flying lead cable is intended for use with a custom breakout fixture, rather than the InfiniBand connection used on some NI Digital Instrument accessories.
Device or Module Side Cable Pinout
InifiniBand Cable Connector (Male)1
Accessory Side Cable Pinout
Pinout can be found on the cable as seen with the Reserved line above
Signal Wires: 28 AWG
Cable Outer Diameter: 0.375 inches
Bend Radius: 2.63 inches
Note: Cable assembly is made up of 3 sleeves of wires, this may cause the cross-section of the cable to be oval instead of circular.