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National Instruments PXI-4021 PXI Switch Controller

The National Instruments PXI-4021 (Part Number: 778277-01) switching controllers permit the control of SCXI-based switching frameworks from a PCI or PXI slot. The NI PXI-4021 requires no extra programming other than the NI-SWITCH controller it receives with the National Instruments switches. For a completely plug-and-play solution that does not require a PCI or PXI slot, the user can consider utilizing the USB-1359 communication adapter for USB control of an SCXI switching chassis.

Every single National Instrument PXI and SCXI switch module comes equipped with NI-SWITCH, an IVI-compliant driver offering complete functionality for all switch modules. For extra help with arranging, programming, and overseeing higher-channel-count switching frameworks, NI Switch Executive programming offers a simple-to-use, smart switch management and visual routing environment. 

When the PXI-4021 Switch Controller is arranged with software as independent switch banks, the user can control the environment of any relay on the module. This mode can be used for custom applications, where the banks of 16x1 multiplexers can be consolidated to form other multiplexer sizes or work autonomously.

The PXI-4021 can augment throughput in automated test applications by the utilization of scanning. Filtering enhances throughput by downloading a list of up to 32,000 connections to the switch modules and cycling through the list with an event (trigger) with no intrusion from the host processor. This model also incorporates terminal blocks that provide screw terminals, spring terminals, or ribbon cable terminals for simple associations. The user can interface the lines and segments of numerous modules to extend a NI framework and address the issues of high-channel-count frameworks.