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This document provides pinout labels for National Instruments (NI) 78xxR and NI 78xx series reconfigurable I/O devices and modules, specifically designed for use with the SCB-68A 68-pin shielded connector block. These labels are intended to simplify wiring and connection referencing by being attached directly to the cover of the connector block. The supported models include a wide range of PCI, PXI, PCIe, and USB series devices, covering various configurations such as NI PCI-7811R, NI PXI-7851R, NI PCIe-7846, and NI USB-7845R, among others.
The core function of these labels is to provide a clear, device-specific pinout reference for the SCB-68A connector block. This is particularly useful given the versatility and reconfigurable nature of the NI R Series modules, which often involve complex wiring for analog input/output (AIO), digital input/output (DIO), and mixed-signal (MIO) operations. By offering pre-designed labels, NI aims to reduce the potential for wiring errors and streamline the setup process for users.
The document presents several distinct pinout labels, each tailored to a specific connector type (MIO, AIO, AO, DIO) and device model or series. This modular approach ensures that users can select the exact label that matches their hardware configuration, preventing confusion that might arise from generic pinout diagrams.
For instance, Figure 1 details the MIO Connector 0 for NI PXIe-7861/7862 models. This label clearly delineates pins for analog inputs (AI 0+ to AI 7+), analog input grounds (AI GND 0 to AI GND 7), analog outputs (AO 0 to AO 7), analog output grounds (AO GND 0 to AO GND 7), digital I/O (DIO 0 to DIO 15), digital grounds (D GND), and power (+5V). The inclusion of "AI SENSE 0" indicates specific sensing capabilities for analog inputs. The layout is organized into four distinct sections, each representing a logical grouping of pins, making it easy to locate specific connections.
Figure 2, on the other hand, provides the MIO Connector 1 label for the same NI PXIe-7861/7862 models. This label extends the analog input range (AI 8+ to AI 15+) and their corresponding grounds (AI GND 8 to AI GND 15). Notably, many of the analog output pins and some digital I/O pins are marked as "NC*" (No Connect), indicating that these pins are not utilized for this specific connector configuration. This highlights the importance of using the correct, model-specific label to avoid attempting to connect to non-functional pins. The digital I/O section (DIO 8 to DIO 15) remains consistent with the MIO Connector 0, suggesting shared digital resources across connectors.
For NI PXIe-7865/7866 models, Figure 3 presents the AIO Connector label. This label focuses on analog input and output functionalities, with pins designated for AI 0+ to AI 1+ and their grounds, as well as AO 0 to AO 7 and their grounds. Many other pins are marked "NC*" or "GND," indicating a more specialized analog-centric pinout compared to the MIO connectors. The presence of "AI SENSE 0" again points to specific analog sensing features.
Figure 4 details the AO Connector for NI PXIe-7865/7866 models, emphasizing analog output capabilities. This label shows an extended range of analog outputs (AO 8 to AO 23) and their corresponding grounds. Most analog input and digital I/O pins are marked as "NC*," reinforcing its dedicated analog output function.
Figures 5 and 6 provide MIO and AO connector labels, respectively, for NI PXIe-7867R/7868R models. The MIO connector for these models (Figure 5) largely mirrors the MIO Connector 0 for NI PXIe-7861/7862, offering AI 0+ to AI 5+, AO 0 to AO 7, and DIO 0 to DIO 15. The AO connector (Figure 6) for these models is similar to the AO connector for NI PXIe-7865/7866, focusing on analog outputs (AO 8 to AO 17) with many "NC*" pins.
Figure 7 offers the MIO Connector label for NI 7830R models. This label is distinct in that many analog input and output pins are marked as "NC," indicating a potentially different allocation of resources or a more limited set of analog capabilities compared to the PXIe series. However, it still provides a full range of digital I/O (DIO 0 to DIO 15).
Finally, Figure 8 provides a general MIO Connector label for NI 783xR/784x/784xR/785x/785xR models. This label is comprehensive, featuring AI 0+ to AI 7+, AO 0 to AO 7, and DIO 0 to DIO 15, along with their respective grounds and power. This label is noted as an alternative for NI 7830R models if the specific label in Figure 7 is not used, suggesting some degree of compatibility or overlap in pin assignments across these series.
Each label also includes a "Direct Feedthrough" diagram, which visually represents the internal wiring of the SCB-68A connector block for the S1 and S2 switches. This diagram shows how certain pins are directly connected or routed, which can be crucial for understanding signal paths and troubleshooting. The "NC: No Connect" annotation is consistently used across all labels to clearly indicate unused pins, preventing accidental or incorrect wiring.
The primary maintenance feature provided by these labels is the ease of identification and replacement. Should a label become damaged or unreadable, a fresh copy can be printed from this document and attached to the SCB-68A cover. This ensures that the pinout information remains readily accessible and accurate, which is vital for ongoing system maintenance, modifications, or troubleshooting. The clear, organized format of each label minimizes the time and effort required to verify connections, contributing to more efficient maintenance routines.
The document also includes a note directing users to ni.com/info with the Info Code "scb68acables" to find appropriate cables for their devices. This external reference is a practical maintenance aid, ensuring that users can easily source compatible cabling, which is a critical aspect of maintaining system integrity and performance. By providing a direct link to cable information, NI supports users in selecting the correct accessories, thereby preventing potential issues that could arise from using incompatible or incorrect cables.
In summary, these pinout labels are an essential tool for anyone working with NI 78xxR and NI 78xx series reconfigurable I/O devices and the SCB-68A connector block. They offer clear, model-specific pinout information, simplify wiring, and support efficient maintenance by providing readily available and accurate connection references.
General| Form Factor | PCI |
|---|---|
| Product Name | National Instruments R Series |
| Bus Interface | PCI |
| Resolution | 16-bit |
| Sampling Rate | Up to 1 MS/s |
| Maximum Analog Input Rate | 1 MS/s |
| Maximum Analog Output Rate | 1 MS/s |
