National Instruments USB-6001 User Manual page 10

Signal
Name Reference
AO GND
AO <0, 1> AO GND
P0.<0..7> D GND
P1.<0..3> D GND
P2.0 D GND
PFI 0, 1 D GND
D GND
+5 V D GND
10 | ni.com | NI USB-6001/6002/6003 User Guide
Table 5. Signal Descriptions (Continued)
Direction
— —
Output
Input or
Output
Input or
Output
Input or
Output
Input
— —
Output
Description
Analog Output Ground—The reference point
for analog output.
Analog Output Channels 0 and 1—Supplies
the voltage output of the AO channels. Refer to
the Analog Output section for more information.
Port 0 Digital I/O Channels 0 to 7—You can
configure each signal individually as an input or
output. Refer to the Digital I/O
information.
Port 1 Digital I/O Channels 0 to 3—You can
configure each signal individually as an input or
output. Refer to the
information.
Port 2 Digital I/O Channel 0—You can
configure each signal individually as an input or
output. Refer to the Digital I/O
information.
Programmable Function Interface or Digital
I/O Channels—An edge counter input or digital
trigger input. Refer to the
section for more information.
Digital Ground—The reference point for digital
signals.
+5 V Power Source—Provides +5 V power up
to 150 mA. Refer to the
section for more information.
section for more
Digital I/O section for more
section for more
PFI 0 and PFI 1
+5 V Power Source