National Instruments USB device 628x - Manual (Page 5)

© National Instruments Corporation 5 NI USB-622x/625x/628x OEM User Guide
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.