Installing PXI Slot Blockers
- Updated2025-11-05
- 1 minute(s) read
PXI slot blockers improve system cooling in PXI chassis by rerouting airflow from empty slots to slots containing PXI modules.
NI recommends using PXI slot blockers with standard or EMC filler panels to improve cooling performance for all PXI chassis.
You can order PXI slot blockers (NI part number 199198-01) on ni.com.
To install PXI slot blockers in your PXI chassis, complete the following steps.
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Install a PXI slot blocker in each empty slot of your PXI chassis.
Figure 20. Slot Blocker Installation 
- Install PXI filler panels over each slot containing a PXI slot blocker.
Related Information
- Part Numbers for PXIe-1081 Recommended Cables and Accessories
Use part numbers to purchase the cables and the accessories for optimizing the performance of the PXIe-1081.
- Installing Peripheral Modules into the PXIe-1081
Follow these steps to install a peripheral modules in a PXIe-1081 chassis. For module-specific instructions and safety information, refer to the module’s user manual.
- Installing PXI Filler Panels
To ensure proper cooling, install standard filler panels or EMC filler panels over each empty slot of a PXI chassis.