This guide is intended to cover the SCB-68 HSDIO 68-pin terminal block (PN 782914-01) that is designed for use with NI Digital and some R Series devices. It does not cover the similar SCB-68 and SCB-68A terminal blocks.
1The terminal names printed on the breadboard are only for the 654x devices. To ensure that you are wiring your device correctly, please reference the pin numbers printed on the breadboard.
This section contains a summary of information frequently sought when installing, wiring up or configuring the SCB-68 HSDIO. 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 and other helpful information, and are available in several popular formats, such as PDF, AutoCAD (.dxf, and .igs (IGES)), STEP (.stp), and .prt (Pro/E).
|Connector and Pinout Information|
|Screw Terminal Wiring Specifications|
|Minimum wire gauge||30 AWG|
|Maximum wire gauge||14 AWG|
|Screw terminal torque||0.5 to 0.6 N-m (4 to 5 in.⋅lb)|
|For more information, refer to the User Manual and Specifications|
|Width||14.7 cm (5.8 in.)|
|Depth||14.7 cm (5.8 in.)|
|Height||3.0 cm (1.2 in.)|
|Weight||650 g (1 lb 7 oz)|
|For more information, refer to the User Manual and Specifications or Dimensional Drawing|
|SCB-68 HSDIO Connection Guide and Specifications|
|SCB-68A Dimensional Drawing|
To easily wire sensors and signals to your terminal block, leverage the published documentation and information in this guide. Here are the basic steps to designing your measurement circuit diagram, understanding pin mapping, connecting your wiring, and configuring your terminal block. Failure to set up your terminal block properly may lead to no readings, unexpected readings, noisy readings, or possible damage to your terminal block, device, or module.
Some devices and modules listed in the table have extended compatibility information, which is linked to in their Compatibility Guide. Refer to your device or module's user manual or user guide for more information.
|Device or Module||Shielded Cable||Unshielded Cable|
|NI High-Speed Digital I/O (HSDIO) or Digital Waveform Instruments|
|NI 653x Models1||See Compatibility Guide|
|NI 654x Models||See Compatibility Guide|
|NI 655x Models||See Compatibility Guide|
|NI Digital Pattern Instruments|
|PXie-6570||See Compatibility Guide|
|NI High-Speed Serial Instruments|
|PXIe-6591||See Compatibility Guide|
|NI R Series Models (NI 78xxR)|
|NI 782x Models||SHC68-68-RDIO2||N/A|
1NI 6533/6534 Legacy High-Speed Digital I/O (HSDIO) are not supported. For compatible accessories see the Digital Instrument Cable and Accessory Guide