Description
The National Instruments SCXI-1333 Terminal Block, with part number 777687-33, is a versatile and general-purpose terminal block designed to provide full access to all row and column connections. It features spring terminals that allow for interaction with a 4 × 16 matrix, making it highly adaptable for various network configurations. In addition to its core functionalities, the SCXI-1333 includes terminals for scanner advanced output and external input trigger signals, enhancing its utility in a wide range of applications.
For robust interconnectivity, the terminal block is equipped with two 128-pin DIN connectors, enabling the seamless linking of columns between modules. This product falls under Measurement Category I and is capable of handling signal voltages up to 150 V, while also being resilient enough to withstand impulse voltages of up to 800 V.
However, users must exercise caution: the SCXI-1333 should not be employed for connections to signals or for taking measurements in higher categories—specifically Categories II, III, or IV. Additionally, it’s important to steer clear of connecting this module to MAINS power circuits that carry 115 or 230 VAC. When it comes to expanding the capabilities of your setup, the terminal block can be used in conjunction with grid expansion plugs, allowing for the extension of the number of rows in a matrix by connecting terminal blocks of the identical model.
| Specification | Detail |
|---|---|
| Product Name | National Instruments SCXI-1333 Terminal Block |
| Part Number | 777687-33 |
| Terminal Block Type | General Purpose |
| Connection Accessibility | All row and column connections |
| Spring Terminals | Access to 4 × 16 matrix |
| Terminals Provided | Scanner advanced output and external input trigger signals |
| Connectors | Two 128-pin DIN connectors for column interconnection |
| Measurement Category | I |
| Maximum Signal Voltage | 150 V |
| Maximum Impulse Voltage | 800 V |
| Usage Caution | Do not use for connections to signals or measurements within Categories II, III, or IV. Avoid connecting to MAINS circuits of 115 or 230 VAC. |
| Grid Expansion Plug Use | To connect terminal blocks of the same type to extend the number of rows in a matrix configuration |
Question 1: What are the operational limitations and safety precautions that must be observed when using the National Instruments SCXI-1333 Terminal Block with part number 777687-33?
Answer 1: The National Instruments SCXI-1333 Terminal Block ensures safe operation within its designated Measurement Category I by being capable of handling signal voltages up to 150 V and withstanding impulse voltages of up to 800 V; however, users should not use it for connections to signals or for measurements in Categories II, III, or IV, and must avoid connecting it to MAINS power circuits that carry 115 or 230 VAC to ensure safety and proper functionality.
Question 2: How does the National Instruments SCXI-1333 Terminal Block ensure safe operation within its designated Measurement Category, and what precautions should users take when using it with higher category signals or MAINS power circuits?
Answer 2: When using the National Instruments SCXI-1333 Terminal Block, part number 777687-33, it is crucial to operate it only within Measurement Category I, handling signal voltages up to 150 V and impulse voltages up to 800 V, and to avoid using it for connections in higher Measurement Categories II, III, or IV, as well as to refrain from connecting it to MAINS power circuits with 115 or 230 VAC to ensure safety and proper functionality.
Question 3: What are the functionalities and limitations of the National Instruments SCXI-1333 Terminal Block, part number 777687-33, in terms of signal voltage capacity and applicable measurement categories?
Answer 3: The National Instruments SCXI-1333 Terminal Block, part number 777687-33, is designed to handle signal voltages up to 150 V and impulse voltages up to 800 V within Measurement Category I, but it should not be used for connections or measurements in higher categories—specifically Categories II, III, or IV, nor should it be connected to MAINS power circuits with 115 or 230 VAC.
Question 4: What precautions should users take when employing the National Instruments SCXI-1333 Terminal Block in applications involving higher Measurement Categories or MAINS power circuits?
Answer 4: Users should avoid using the National Instruments SCXI-1333 Terminal Block for connections to signals or measurements in Measurement Categories II, III, or IV and must not connect it to MAINS power circuits that carry 115 or 230 VAC, as it is only rated for Measurement Category I and lower signal voltages.
Question 5: What are the capabilities and limitations of the National Instruments SCXI-1333 Terminal Block, part number 777687-33, in terms of voltage handling and connectivity options?
Answer 5: The National Instruments SCXI-1333 Terminal Block, part number 777687-33, is capable of handling signal voltages up to 150 V and impulse voltages up to 800 V within Measurement Category I, featuring spring terminals for a 4 × 16 matrix configuration and two 128-pin DIN connectors for robust interconnectivity between modules, but it should not be used for connections in Measurement Categories II, III, or IV, nor connected to MAINS power circuits of 115
