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NI USB-485

Single-Port RS485 Interface for USB

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  • 460.8 kb/s maximum transfer rate
  • NI-Serial device driver works with NI-VISA for easy development in Windows 2000/XP
  • Compatible with standard PC serial ports
  • Automatic transceiver-control mode for 2-wire RS485 devices
  • Communicates with up to 31 devices
  • RS422 as well as RS485 interfaces
Data Sheet

A National Instruments USB-485 interface transforms your Universal Serial Bus (USB) port into a single asynchronous port for communication with RS485 or RS422 devices. The NI USB-485 interface is shipped with NI-Serial driver software for Windows 2000/XP. You can use the USB-485 port as standard serial port from your existing applications or with applications written with NI-VISA.

Data Sheet | View Pricing and Purchasing Information »

Step 1: Verify Device and Quantity Selection
Part
Number		 Description Est Ship Days Glossary Definition US Dollars
(change) 		Qty
778475-01 NI USB-485 1 - 2 $ 149.00
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) 5 - 10 $ 25.00
183283-02 RS485/RS422 Null Modem Cable (2m) 5 - 10 $ 30.00
183283-04 RS485/RS422 Null Modem Cable (4m) 5 - 10 $ 35.00
Step 3: Add to Cart or Get a Quote

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Specifications Documents


Specifications Summary

General 
Form FactorUSB
Operating System / TargetWindows
Serial Standard CompatibilityRS-422
RS-485
LabVIEW RT SupportNo
Port Information 
Number of Ports1
Maximum Transfer Rate460.8 kbits/s
I/O FIFO Buffer Size128 B
Maximum Device Connections / Port31
Maximum Cable Length1.2 km
Handles RTS/CTS Handshake LinesYes
Direct Memory Access (DMA)No
Power Requirements 
Voltage5 VDC
Current175 mA
SourceInternally Powered
Physical Specifications 
Length3.81 cm
Width3.56 cm
Height1.52 cm
I/O Connector9-pin D-Sub (DB-9)
Operating Temperature0..70 °C

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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

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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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Select from the following compatible software for the NI USB-485.

Graphical Programming Text-Based Programming
Option 1: Select one of the following NI Developer Suite packages or Configure Your NI Developer Suite >>
Part
Number		 Description Est Ship Days Glossary Definition US Dollars
(change)		 Qty
Pre-configured NI Developer Suite Packages
DS410836 NI Developer Suite Core (English)
NI Recommended		   $ 4,699.00

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You have selected United States as the country where you will use the product(s) (change).

Option 2: Select any of the following software products
Part
Number		 Description Est Ship Days Glossary Definition US Dollars
(change) 		Qty
LabVIEW Software
776670-09 NI LabVIEW Full Development System for Windows (English) 1 - 2 $ 2,599.00

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You have selected United States as the country where you will use the product(s) (change).

Option 1: Select one of the following NI Developer Suite packages or Configure Your NI Developer Suite >>
Part
Number		 Description Est Ship Days Glossary Definition US Dollars
(change)		 Qty
Pre-configured NI Developer Suite Packages
DS410836 NI Developer Suite Core (English)
NI Recommended		   $ 4,699.00

Guarantee your price for 30 days with an NI Instant Quote (learn more)

You have selected United States as the country where you will use the product(s) (change).

Option 2: Select any of the following software products
Part
Number		 Description Est Ship Days Glossary Definition US Dollars
(change) 		Qty
Application Software
776800-09 LabWindows/CVI Full Development System for Windows 5 - 10 $ 2,599.00

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You have selected United States as the country where you will use the product(s) (change).


Driver Software

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