Description
The TB-2640 is a PXI Switch with part numbers 779056-01 and 779056-02. This model is designed to be compatible with the PXI-2532 Matrix Switch Module, offering flexibility in setup for various testing scenarios. The configuration for part number 779056-01 is a 4 X 128 Matrix, while the 779056-02 configuration includes 4 X 128 Matrix with 100 Ohm protection resistors, enhancing its durability and reliability in complex systems.
The current rating for these switches is 0.5 A per channel, ensuring that they can handle moderate power requirements for various applications. With a DC path resistance of <1.5 Ω, they provide efficient signal transmission with minimal loss. The maximum switching voltage is rated at 100 V, CAT I for both channel-to-channel and channel-to-ground configurations, making these switches capable of operating safely under high-voltage conditions.
The TB-2640 boasts a bandwidth of ≥10 MHz, allowing for the transmission of high-frequency signals without significant attenuation. To meet additional requirements, the TB-2640 comes with four 2 mm jumpers, four 34 conductor, 28 AWG, .050 in. pitch ribbon cable assemblies, one 16 conductor, 28 AWG, .050 in. pitch ribbon cable assembly, 1/8 in. flathead, and #1 Philips screwdrivers. These accessories ensure that users have everything they need for setup and operation right out of the box.
Despite being announced as obsolete by National Instruments, the TB-2640 remains available for purchase and repairs through Apex Waves. This ensures that existing systems using these switches can continue to operate without the need for immediate replacement or overhaul, providing continuity and stability for critical applications.
| Specification | Detail |
|---|---|
| Part Number | 779056-01, 779056-02 |
| Category | PXI Switches |
| Model | TB-2640 |
| Compatible Module | PXI-2532 Matrix Switch Module |
| Configuration for 779056-01 | 4 X 128 Matrix |
| Configuration for 779056-02 | 4 X 128 Matrix with 100 Ohm protection resistors |
| Current Rating | 0.5 A per channel |
| DC Path Resistance | <1.5 Ω |
| Maximum Switching Voltage (Channel-to-Channel, Channel-to-Ground) | 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. pitch ribbon cable assembly, 1/8 in. flathead and #1 Philips screwdrivers |
| Obsolete Status | Announced by National Instruments, available for purchase and repairs by Apex Waves |
Question 1: What is the part number for the TB-2640 PXI Switch?
Answer 1: 779056-01/02
Question 2: What matrix configuration does the TB-2640 support?
Answer 2: 4 X 128 Matrix
Question 3: What is the current rating per channel for the TB-2640?
Answer 3: 0.5 A
Question 4: What is the maximum switching voltage for the TB-2640?
Answer 4: 100 V, CAT I
Question 5: Is the TB-2640 still available despite being obsolete?
Answer 5: Yes, through Apex Waves



