InfiniBand Cables: Digital Instrument Cable Guide
Overview
This guide addresses many common questions for the NI Digital InfiniBand cables: the SHB12X-B12X and SHB12X-H3X24. NI 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.
Contents
- Using the Digital Instrument Cable and Accessory Guides
- Differences and Similarities between NI InfiniBand Cables
- Quick Specifications and Documentation
- Compatible Devices, Modules, and Cabling for InfiniBand Digital Instrument Cables
- Additional Resources
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.
- To find more information about other NI Digital Instrument cables and general information that applies to all Digital Instrument cables, visit Digital Instrument Cable Guide Main Page.
- To determine compatibility of your 68-pin cable with your NI Digital device or module, your NI Digital connector black or terminal block, visit Digital Instrument Cable and Accessory Compatibility or review the general compatibility information below.
- To learn more about NI Digital Instrument connector and terminal block accessories to which you can connect your cable, review Digital Instrument Accessory Guide.
- To create your own cable or test fixture, or to repair an existing NI Digital Instrument cable or accessory, visit NI Digital Instrument Device Custom Cables, Replacement Connectors, and Screws.
Anatomy of a Model Name
Use this section to better understand your NI accessory's model name and numbering.
Model Prefixes
- SH - Shielded cables. Shielding can include individually shielded pairs and/or shielding for the entire cable assembly.
- B - Cables with an InfiniBand connector.
- H - Cables with a flying lead connector.
Shielding and Twisted Pairs
Cable shielding utilizes a thin conductive metallic layer to protect against electromagnetic interference. Twisted pairs provide another level of noise reduction by twisting pairs of differential signals. Click here to learn more about cable shielding and twisted pairs.
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.
- Check out other popular Digital cables.
- Review which cables are compatible with your device, module or accessory.
| Model | Device Connector | Accessory Connector | Shielded? | Application Notes |
|---|---|---|---|---|
| SHB12X-B12X | InfiniBand | InfiniBand | Yes | High performance noise reduction |
| SHB12X-H3X24 | InfiniBand | - | Yes | Shielded flying lead cable for connecting to custom test fixtures |
Quick Specifications and Documentation
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).
| Wire Gauge |
Signal Wires: 28 AWG |
| See Dimensional Drawing for more information |
| Bend Radius |
Cable Outer Diameter: 0.44 Inches |
Bend Radius: 3.1 inches |
| See Dimensional Drawing for more information |
| Resources |
| Detailed Information | |
| 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. | |
Cable Part Numbers: | |
1 This cable connector is not sold separately. The mating Right-Angle InfiniBand connector (Female) can be found on the Digital Instrument custom connectors page.
| 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 |
| Wire Gauge |
Signal Wires: 28 AWG |
| Bend Radius |
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. |
| Resources |
| Detailed Information | |
| Wire mapping or pinout with wire colors: Printed on Lead Pairs | |
| Shielding: Full Cable Assembly | |
| Cable Part Number: P/N 196236-1R5 | |
1 This cable connector is not sold separately. The mating Right-Angle InfiniBand connector (Female) can be found on the Digital Instrument custom connectors page.
Compatible Devices, Modules, and Cabling for InfiniBand Digital Instrument Cables
This section is a summary of the most common use cases. Refer to the compatibility guide for complete coverage for your device or module with your cable and connector block or terminal block.
| Cable | Product | Device or Module |
|---|---|---|
| SHB12X-B12X | Digital I/O Adapter Modules for FlexRIO | NI 6583, NI 6587, NI 6589 |
| Digital Waveform Instruments (Previously HSDIO) | NI 6561, NI 6562 | |
| SHB12X-H3X24 | Any device recommended for SHB12X-B12X and needing custom connection solutions. | |
Additional Resources
- Learn about terminology, specifications and other common questions for other Digital Cables.
- Learn about specifications, model differences and other common questions for other Digital accessories.
- Learn about the compatibility of NI Digital devices and modules with NI Digital cables and accessories.
- Find the parts needed to make a custom cable, breakout fixture, or replace connectors and screws on NI Digital hardware.
- Browse dimensional drawings for NI Digital cables and accessories.