|Product Family||Digital I/O|
|Form Factor||PXI Platform|
|PXI Bus Type||PXI Hybrid Compatible|
|Operating System/Target||Real-Time , Linux , Windows|
|Power Requirement for +3.3V Rail||100 mA|
|Power Requirement for +5V Rail||400 mA|
|Power Requirement for +12V Rail||0 A|
|Power Requirement for -12V Rail||0 A|
|Slot Two Module||No|
|Isolation Type||Ch-Ch Isolation|
|Logic Levels||24 V|
|Input Current Flow||Sinking , Sourcing|
|Output Current Flow||Relay, Form A , Sinking , Sourcing , Relay, Form C|
|Programmable Input Filters||Yes|
|Supports Programmable Power-Up States?||Yes|
|Current Drive Single||2 A|
|Current Drive All||16 A|
|Supports Handshaking I/O?||No|
|Supports Pattern I/O?||No|
|Maximum Input Range||-30 V - 30 V|
|Maximum Output Range||0 V - 150 V|
|I/O Connector||37-pin D-Sub|
|Synchronization Bus (RTSI)||No|
To use the NI PXI-6521 , you need all items in the diagram below. Select Option 1 if you already own a PXI System, or Option 2 if you do not already own a chassis, controller, or software.
Roll over the icons below to learn why you need each item in the system
1 Connector Block
Choose from hundreds of specialized instruments to create a PXI System that suits your measurement needs and can scale for future applications. Then, we'll help you choose the right hardware and software to complete your configuration.
Use the PXI Advisor to choose from a variety of modules including analog I/O, digital I/O, switching and more. Then, complete and price the PXI System.
View and price a complete PXI configuration including the NI PXI-6521, chassis, and controller. Starting from the default configuration, you can add modules, accessories, and software and customize your system.
Reduce your setup time and total cost of ownership, and get a system you can use out of the box with National Instruments system assurance programs. System assurance programs include:
This service is only available for PXI, NI CompactRIO, and NI Compact FieldPoint systems.
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Return your registered product under warranty at no additional labor and parts cost. NI offers fault location, diagnostics, and repair any time the system fails as well as any adjustments needed to restore the hardware to manufacturing specifications.