A-12 | ni.com
Appendix A Module/Device-Specific Information
Note For a detailed description of each signal, refer to the I/O Connector Signal
Descriptions section of Chapter 3, Connector and LED Information.
Note For more information about default NI-DAQmx counter inputs, refer to
Connecting Counter Signals in the NI-DAQmx Help or the LabVIEW Help.
PCI-6221 (37-Pin) Important Links
The following list contains links specific to your DAQ device:
• Specifications—Refer to the NI 6221 (37-Pin) Specifications for more detailed
information about the PCI-6221 (37-pin) device.
• Accessory and Cabling Options—Refer to the 37-Pin M Series Cables and Accessories
section of Chapter 2, DAQ System Overview, for more information.
CTR 1 GATE 34 (PFI 4)
CTR 1 AUX 35 (PFI 5)
CTR 1 OUT 36 (PFI 7)
CTR 1 A 15 (PFI 3)
CTR 1 Z 34 (PFI 4)
CTR 1 B 35 (PFI 5)
FREQ OUT 35 (PFI 5)
Table A-5. Default NI-DAQmx Counter/Timer Pins (Continued)
Counter/Timer Signal Default Pin Number (Name)
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