The NI TB-2621 is a front-mount terminal block for supported 37-pin D-Sub PXI modules, including the PXI-6521.
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Key product information and technical features.
The TB-2621 connects field wiring directly at a compatible PXI module's front connector. NI's accessory guide specifies direct attachment without an intervening cable.
Verified product specifications.
| Manufacturer part number | 779444-01 |
|---|---|
| Voltage rating | 150 V CAT II |
| Maximum current | 2 A |
| Module-side connector | 37-pin female D-Sub |
| Field wiring termination | Screw terminals |
| Mounting | PXI module front mount |
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Manufacturer
Documented host module
Front-mount wiring accessory
NI explicitly lists the TB-2621 as a front-mount accessory for the PXI-6521.
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Product-specific answers based on available technical information.
No. NI specifies that the TB-2621 attaches directly to the PXI module's front connector and does not require a cable.
Yes. NI's 6521 specifications list the TB-2621, part number 779444-01, as a PXI-6521-only front-mount accessory.
NI's TB-2621 dimensional drawings page provides access to 2D drawings and 3D CAD models.