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BNC-2120 Installation Guide
PFI 2/P1.2
Programmable Function Interface channel 2 or Port 1 Digital
Input/Output channel 2
AI CONV CLK (AI Convert Clock Signal)—As an output, this pin is the
ai/ConvertClock signal. A high-to-low edge on AI CONV indicates that
an A/D conversion is occurring.
PFI 3/P1.3
Programmable Function Interface channel 3 or Port 1 Digital
Input/Output channel 3
CTR 1 SOURCE (Counter 1 Source Signal)—As an output, this pin is
the Ctr1Source signal. This signal reflects the actual source connected to
the general-purpose counter 1.
PFI 4/P1.4
Programmable Function Interface channel 4 or Port 1 Digital
Input/Output channel 4
CTR 1 GATE (Counter 1 Gate Signal)—As an output, this pin is the
Ctr1Gate signal. This signal reflects the actual gate signal connected to
the general-purpose counter 1.
PFI 5/P1.5
Programmable Function Interface channel 5 or Port 1 Digital
Input/Output channel 5
AO SAMP CLK (AO Sample Clock Signal)—As an output, this pin is
the ao/SampleClock signal. A high-to-low edge on AO SAMP indicates
that the AO primary group is being updated.
PFI 6/P1.6
Programmable Function Interface channel 6 or Port 1 Digital
Input/Output channel 6
AO START TRIG (AO Start Trigger Signal)—As an output, this pin is
the ao/StartTrigger signal. In timed AO sequences, a low-to-high
transition indicates the initiation of the waveform generation.
PFI 7/P1.7
Programmable Function Interface channel 7 or Port 1 Digital
Input/Output channel 7
AI SAMP CLK (AI Sample Clock Signal)—As an output, this pin is the
ai/SampleClock signal. This pin pulses once at the start of each AI
sample in the interval sample. A low-to-high transition indicates the start
of the sample.
Table 2.
BNC-2120 Timing I/O BNC/Terminal Descriptions (Continued)
BNC/Terminal
Description
