National Instruments NI USB-621x - Manual (Page 138)

Appendix A Device-Specific Information
NI USB-621x User Manual A-4 ni.com
USB-6211/6215
USB-6211/6215 Pinout
Figure A-2 shows the pinout of the NI 6211/6215.
For a detailed description of each signal, refer to the I/O Connector Signal
Descriptions section of Chapter 3, Connector Information .
Single-blink Operating normally. Connected to
USB Hi-Speed port. Refer to the
NI 621x Specifications for more
information.
Double-blink Connected to USB full speed port.
Device performance might be
affected. Refer to the NI 621x
Specifications for more
information.
Table A-2. PWR/ACT LED Status (Continued)
LED State Device Status