BNC-2120 Installation Guide
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© National Instruments
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11
PFI 8/P2.0
Programmable Function Interface channel 8 or Port 2 Digital
Input/Output channel 0
CTR 0 SOURCE (Counter 0 Source Signal)—As an output, this pin is
the Ctr0Source signal. This signal reflects the actual source connected to
the general-purpose counter 0.
PFI 9/P2.1
Programmable Function Interface channel 9 or Port 2 Digital
Input/Output channel 1
CTR 0 GATE (Counter 0 Gate Signal)—As an output, this pin is the
Ctr0Gate signal. This signal reflects the actual gate signal connected to
the general-purpose counter 0.
PFI 12/P2.4
Programmable Function Interface channel 12 or Port 2 Digital
Input/Output channel 4
CTR 0 OUT (Counter 0 Output Signal)—As an input, this pin can be
used to route signals directly to the RTSI bus. As an output, this pin emits
the Ctr0InternalOutput signal.
PFI 13/P2.5
Programmable Function Interface channel 13 or Port 2 Digital
Input/Output channel 5
CTR 1 OUT (Counter 1 Output Signal)—As an input, this pin can be
used to route signals directly to the RTSI bus. As an output, this pin emits
the Ctr1InternalOutput signal.
PFI 14/P2.6
Programmable Function Interface channel 14 or Port 2 Digital
Input/Output channel 6
FREQ OUT (Frequency Output)—This output is from the frequency
generator.
+5 V
+5 V Power—These terminals are fused on the DAQ device and are
self-resetting. The current available depends on the product to which it
is connected.
D GND
Digital Ground—This terminal supplies the reference for the digital
signals at the I/O connector as well as the +5 VDC supply.
Table 2.
BNC-2120 Timing I/O BNC/Terminal Descriptions (Continued)
BNC/Terminal
Description
