Introduction

The National Instruments USB-6501 is a Full Speed USB 2.0 device that provides 24 DIO channels and a 32-bit counter. This user guide describes how to use the device.

For specifications, refer to the NI USB-6501 Device Specifications document available at ni.com/manuals.

The following figure shows key functional components of the NI USB-6501.

Figure 1. NI USB-6501 Top and Back Views

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  1. USB Cable Strain Relief
  2. Screw Terminal Connector Plug
  3. LED Indicator
  4. USB Connector

The following figure shows key functional components of the NI USB-6501.

Figure 2. NI USB-6501 Device Block Diagram

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