National Instruments 622x, 625x, 628x

I/O Connector Pinouts

Figures 4 through 9 show the connector pinouts for the USB-6221 OEM,

USB-6225 OEM, USB-6229 OEM, USB-6251 OEM, USB-6255 OEM,

USB-6259 OEM, USB-6281 OEM, and USB-6289 OEM devices.

Refer to the M Series User Manual at ni.com/manuals for more

information about USB-622x/625x/628x signals and how to connect them.

Contents

Main USER GUIDE NI USB-622x/625x/628x OEM M Series USB-6221/6225/6229/6251/6255/6259/6281/6289 OEM Devices Dimensions Figure 2. USB-6221/6251/6281 OEM Dimensions in Inches (Millimeters) Figure 3 shows the dimensions of the USB-6225/6229/6255/6259/6289 OEM device. Figure 3. USB-6225/6229/6255/6259/6289 OEM Dimensions in Inches (Millimeters) Page Figure 4. USB-6221 OEM Connector Pinout NI USB-622x/625x/628x OEM User Guide 6 ni.com 50-Pin Digital Connector 34-Pin Analog Connector NC = No Connect Figure 5. USB-6225 OEM Connector Pinout 50-Pin Analog/Digital Connectors NC = No Connect Figure 6. USB-6229 OEM Connector Pinout NI USB-622x/625x/628x OEM User Guide 8 ni.com 50-Pin Digital Connectors NC = No Connect NC = No Connect Figure 7. USB-6251/6281 OEM Connector Pinout 50-Pin Digital Connector 34-Pin Analog Connector Figure 8. USB-6255 OEM Connector Pinout NI USB-622x/625x/628x OEM User Guide 10 ni.com 50-Pin Analog/Digital Connectors Figure 9. USB-6259/6289 OEM Connector Pinout 50-Pin Digital Connectors Default Counter/Timer Pinouts Attaching External LEDs Power Switch Connecting the USB-622x/625x/628x OEM Device to Your Chassis Replacing Fuses Device Components Modifying the USB Device Name in Microsoft Windows Windows Vista/XP Users Page Page Windows 2000 Users