Description
The National Instruments TB-2640 Terminal Block is a versatile accessory designed for the PXI-2532 Matrix Switch Module, offering distinct configuration options through part numbers 779056-01 and 779056-02. The former configures a 4 X 128 Matrix, while the latter equips the matrix with 100 Ohm protection resistors, enhancing its suitability for high-power applications by safeguarding the reed relays against capacitive loads.
Facilitating column expansion, the TB-2640 provides dual row connections and integrates with ribbon cable headers for secure signal connections. It also features two sets of row connections, allowing seamless linking with additional PXI-2532 modules for expanded matrix configurations.
Each channel of the TB-2640 can handle a maximum current of 0.5 A, with a DC path resistance of less than 1.5 Ω. It supports a maximum channel-to-channel switching voltage of 100 V and a channel-to-ground switching voltage of 100 V, CAT I, ensuring reliable performance in various testing environments. Additionally, with a typical bandwidth of 10 MHz or greater, the terminal block meets the needs of high-frequency applications.
To accommodate the TB-2640’s requirements, additional components are necessary, including four 2 mm jumpers, four 34 conductor, 28 AWG, .050 inch pitch ribbon cable assemblies, and one 16 conductor, 28 AWG, .050 inch pitch ribbon cable assembly, making this terminal block a comprehensive solution for matrix switch configuration and expansion.
| Specification | Detail |
|---|---|
| Product | National Instruments TB-2640 Terminal Block |
| Corresponding Part Numbers | 779056-01, 779056-02 |
| Compatible Module | PXI-2532 Matrix Switch Module |
| Configuration Options | 779056-01: 4 X 128 Matrix 779056-02: 4 X 128 Matrix with 100 Ohm protection resistors |
| Protection Resistors | 100 Ohm (for part number 779056-02) |
| Connection Type | Dual row connections for column expansion, ribbon cable headers |
| Row Connections | Two sets of row connections for linking to other PXI-2532 modules |
| Maximum Current per Channel | 0.5 A |
| DC Path Resistance | <1.5 Ω |
| Maximum Channel-to-Channel Voltage | 100 V |
| Channel-to-Ground Voltage | 100 V, CAT I |
| Bandwidth | ≥10 MHz |
| Additional Requirements | Four 2 mm jumpers, four 34 conductor, 28 AWG, .050 in. pitch ribbon cable assemblies, one 16 conductor, 28 AWG, .050 in. |
Question 1: What distinguishes the National Instruments TB-2640 Terminal Block part numbers 779056-01 and 779056-02 in terms of their configuration options for the PXI-2532 Matrix Switch Module?
Answer 1: For a PXI-2532 Matrix Switch Module requiring 100 Ohm protection resistors for high-power applications, part number 779056-02 should be selected.
Question 2: What are the key differences between part numbers 779056-01 and 779056-02 of the National Instruments TB-2640 Terminal Block in terms of matrix configuration and suitability for various applications?
Answer 2: The National Instruments TB-2640 Terminal Block, when used with the PXI-2532 Matrix Switch Module, features 100 Ohm protection resistors in the 779056-02 configuration to protect against capacitive loads, and each channel can handle a maximum current of 0.5 A with a DC path resistance of less than 1.5 Ω, ensuring reliable performance in various testing environments.
Question 3: Which part number should be selected for a PXI-2532 Matrix Switch Module if 100 Ohm protection resistors for high-power applications are required?
Answer 3: Part number 779056-02 differs from part number 779056-01 by equipping the matrix with 100 Ohm protection resistors, which enhance its suitability for high-power applications by protecting the reed relays from capacitive loads, and the TB-2640 is suitable for expanding the PXI-2532 Matrix Switch Module configurations due to its dual row connections for column expansion, two sets of row connections for linking additional PXI-2532 modules, and its ability to support
Question 4: What are the protection features and current handling capabilities of the National Instruments TB-2640 Terminal Block when used with the PXI-2532 Matrix Switch Module?
Answer 4: The National Instruments TB-2640 Terminal Block part number 779056-01 configures a 4 X 128 Matrix, whereas part number 779056-02 equips the matrix with 100 Ohm protection resistors, making it more suitable for high-power applications by protecting the reed relays from capacitive loads.
Question 5: Based on the information provided about the National Instruments TB-2640 Terminal Block, how does part number 779056-02 differ from part number 779056-01, and what features make the TB-2640 suitable for expanding the PXI-2532 Matrix Switch Module configurations?
Answer 5: The key differences between part numbers 779056-01 and 779056-02 of the National Instruments TB-2640 Terminal Block are that 779056-01 configures a 4 X 128 Matrix without additional components, whereas 779056-02 equips the matrix with 100 Ohm protection resistors, making it more suitable for high-power applications by providing protection for the reed relays against capacitive loads.
