The National Instruments PXI-1000B is an eight slot PXI chassis designed for modular test and measurement systems. It provides the mechanical structure, power, cooling, and backplane connectivity needed for PXI modules. The PXI-1000B can host a PXI controller and a mix of instrument and data acquisition modules.
In a PXI system, the chassis is the foundation for module communication and physical integration. The PXI-1000B provides eight slots and a backplane that supports PXI timing and triggering. Engineers can build a complete system that combines measurement, switching, signal generation, and control in one mainframe.
Eight Slot PXI Architecture
The PXI-1000B provides eight slots for PXI and compatible modules. One slot is used for a system controller, and the remaining slots accept instrument or DAQ modules. This configuration supports a controller plus several measurement and control functions.
Modules can include digitizers, signal generators, switches, digital I O, and data acquisition cards. Engineers should verify slot compatibility, power requirements, and cooling needs when configuring the system.
Power Cooling and Backplane
The chassis includes integrated power and cooling for installed modules. Proper airflow is important because PXI modules can generate heat during high speed operation. Engineers should keep vents unobstructed and follow installation guidelines.
Power budgeting is part of system planning. Each module has power requirements, and the total load must remain within the chassis capability. Documentation of module power and slot assignment helps prevent issues.
Timing and Triggering
The PXI backplane provides timing and triggering resources for module synchronization. Engineers can use trigger lines and clocks to coordinate measurements across multiple instruments. This is important when acquiring correlated data.
Applications
The PXI-1000B is suitable for automated test, laboratory instrumentation, signal analysis, production validation, and research systems. It supports compact systems that need PXI capability and modular expansion.
Installation and Maintenance
Installation requires mounting the chassis securely, connecting power, and inserting the controller and modules according to the slot configuration. Cable management should allow access to connectors. The chassis should be placed where airflow is not blocked.
Maintenance includes cleaning vents, checking fan operation, inspecting module seating, and verifying power and communication status.
Summary
The National Instruments PXI-1000B PXI Chassis provides an eight slot platform for modular test and measurement systems. It combines PXI backplane connectivity, integrated power and cooling, and a flexible mainframe format. The PXI-1000B is a practical chassis for engineers who need PXI capability in a focused system configuration.
