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Product Overview
The PXIe-1073 is a 5-slot PXI Express chassis from National Instruments, designed for automated test, measurement, data acquisition, and laboratory instrumentation systems. It combines three PXI Express hybrid slots with two dedicated PXI Express slots and includes an integrated MXI-Express controller for remote operation from a host computer. The chassis supports both PXI Express and compatible CompactPCI/PXI modules, giving engineers flexibility when maintaining mixed-generation test platforms. Its backplane provides PXI_CLK10, PXIe_CLK100, and PXIe_SYNC100 timing resources for synchronized instrumentation. NI specifies up to 250 MB/s dedicated bandwidth per slot and 38 W of cooling capacity per slot. The compact 3U form factor also makes it suitable for portable or desktop test systems.
Technical Specifications — PXIe-1073
| Parameter | Value |
|---|---|
| Product Model | PXIe-1073 |
| Manufacturer | National Instruments (NI) |
| Product Type | PXI Express Chassis |
| Slot Count | 5 peripheral slots |
| Hybrid Slots | 3 |
| PXI Express Slots | 2 |
| Controller | Integrated MXI-Express |
| Maximum Bandwidth | Up to 250 MB/s per slot |
| AC Input | 100–240 VAC |
| Operating Voltage | 90–264 VAC |
| Input Frequency | 47–63 Hz |
| Maximum Input Current | 4–2 A |
| Total DC Power | 150 W |
| Slot Cooling Capacity | 38.25 W |
| Operating Temperature | 0–50°C |
| Dimensions (HxWxD) | 177 × 257.1 × 212.8 mm |
| Weight | Approx. 5 kg |
| Mounting | Desktop or optional rack mount |
| Compliance | IEC 61010-1, UL 61010-1, CSA 61010-1, IEC 61326 |
The chassis accepts 3U PXI Express and CompactPCI Express modules, while designated slots also support CompactPCI modules.
NI PXIe-1073
Key Features and Benefits — PXIe-1073
- Five-slot PXI Express chassis architecture.
- Three PXI Express hybrid slots for flexible module selection.
- Two dedicated PXI Express slots.
- Integrated MXI-Express remote controller.
- Up to 250 MB/s dedicated slot bandwidth.
- 150 W total DC power capacity.
- 38.25 W cooling capacity per slot.
- 10 MHz and 100 MHz system reference clocks.
- Compact 3U construction for desktop and portable test systems.
- Accepts compatible PXI, PXI Express, CompactPCI, and CompactPCI Express modules.
The integrated MXI-Express controller is particularly useful when the instrumentation chassis must be controlled from a remote desktop or laptop host. For legacy test systems, that combination can be more practical than replacing the entire PXI architecture.
Related Models
PXIe-1071: Compact PXI Express chassis designed for smaller instrumentation configurations.
PXIe-1082: Larger PXI Express chassis offering additional slots for expanded automated test systems.
PXIe-1083: Higher-capacity chassis for applications requiring more instrumentation modules.
PXIe-1085: High-bandwidth PXI Express chassis designed for demanding measurement and test applications.
NI PXIe-1073
Installation and Maintenance — PXIe-1073
Before installation, verify the required PXI/PXI Express slot configuration, module power consumption, cooling requirements, MXI-Express host interface, and available rack space. NI specifies 38.25 W of cooling capacity per slot, so the thermal budget should be checked when multiple high-power modules are installed.
During maintenance, inspect the backplane connectors, slot guides, power connections, fan operation, and ventilation openings. Keep the chassis free from dust buildup and avoid obstructing the airflow path. After servicing, verify module recognition, host communication, fan operation, and system timing before returning the test platform to service.
Personally, I would check the power and cooling budget before adding replacement modules. In a compact PXI chassis, thermal loading can become a practical limitation long before the physical slots are full.
Product Warranty — PXIe-1073
Warranty coverage should be confirmed with the supplier according to the supplied condition, such as new surplus, refurbished, or tested-used. For critical test-system spares, procurement records should include the complete part number, chassis revision where available, inspection status, serial information, and applicable warranty period.
NI currently lists the PXIe-1073 as available for support, repair, and calibration services but no longer available for purchase, with 787026-01 identified as the recommended replacement.
When sourcing the NI PXIe-1073, verify the exact part number, slot requirements, MXI-Express configuration, and installed PXI modules before purchase.
