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NI ExpressCard-8421/2

2-Port, ExpressCard/34, RS485/RS422 Serial Interface

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  • Hyperthreading and multiprocessor compatibility
  • 128 B transmit and receive FIFOs; 2-port, RS485/RS422 serial interface
  • 460.8 kb/s maximum transfer rate
  • Included converter cable (ExpressCard to two DB-9 male connectors)
  • 4 transceiver-control modes, including automatic mode for 2-wire RS485 devices
  • Certified Windows-quality driver for quick installation
  • Specifications (3) popup

Step 1: Verify Device and Quantity Selection
Part
Number		 Description Est Ship Days Glossary Definition US Dollars
(change) 		Qty
779458-02 NI ExpressCard-8421/2 -- For price, select country  
Step 2: Select Optional Accessories
Part
Number		 Description Est Ship Days Glossary Definition US Dollars
(change) 		Qty
Shielded Cables
183283-01 RS485/RS422 Null Modem Cable (1m) -- For price, select country  
183283-02 RS485/RS422 Null Modem Cable (2m) -- For price, select country  
183283-04 RS485/RS422 Null Modem Cable (4m) -- For price, select country  
Step 3: Add to Cart or Get a Quote

Please select the country where you will use the product(s) so that we can provide you with accurate pricing, availability, and purchasing information

NI ExpressCard serial interfaces are the optimal solution for providing additional RS232, RS422, and RS485 serial ports to laptop computers. NI ExpressCard/34 serial interfaces are available in 2-port versions for both RS232 and RS485/RS422. You can install and use these interfaces as standard serial ports for your existing applications or with applications written with NI-VISA universal I/O interface software

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Additional Product Information


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Specifications Documents


Specifications Summary


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Extended Warranties

National Instruments designs and manufactures all products to minimize failures, however unexpected failures can still occur. Extended warranties provide a fixed economical price at the time of system purchase, covering any repair costs for up to three years. In addition, they offer the following benefits:

  • Significant cost savings compared to individual repair incidents
  • Fault location, diagnostics, and repair by NI any time the system product fails
  • All parts and labor costs covered as well as any adjustments needed to restore the hardware to manufacturing specifications

For more information about your warranty options:

Calibration

NI recognizes the need to maintain properly calibrated devices for high-accuracy measurements. NI provides manual calibration procedures, services to recalibrate your products, and automated calibration software to calibrate many NI measurement products.

Training

NI training is the fastest, most certain route to productivity with NI tools and successful application development.

Repair Services

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.

Technical Support

ni.com/support

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