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National Instruments Corporation
7
TB-2705 PXI Terminal Block
PFI8/GPCTR0_
SOURCE
DGND
Input
PFI8/Counter 0 Source—As an input,
this is one of the PFIs.
Output
As an output, this is the
GPCTR0_SOURCE signal. This
signal reflects the actual source
connected to the general-purpose
counter 0.
PFI9/GPCTR0_GATE
DGND
Input
PFI9/Counter 0 Gate—As an input,
this is one of the PFIs.
Output
As an output, this is the
GPCTR0_GATE signal. This signal
reflects the actual gate signal
connected to the general-purpose
counter 0.
GPCTR0_OUT
DGND
Output
Counter 0 Output—This is the
general-purpose counter 0 output.
FREQ_OUT
DGND
Output
Frequency Output—This output is
from the frequency generator output.
Table 2.
TB-2705 Terminal Block Waveform Generation Signal Descriptions
Signal Name
Reference
Direction
Description
AOGND
—
—
Analog Output Ground—The analog
output voltages are referenced to this
node.
DAC<0..7>OUT
AOGND
Output
Analog Output Channels 0
through 7—These pins supply the
voltage output of the respective
channel.
DGND
—
—
Digital Ground—This pin supplies the
reference for the digital signals at the
I/O connector as well as the reference
for the +5 VDC supply.
DIO<0..7>
DGND
Input or
Output
Digital I/O Signals—DIO6 and 7 can
control the up/down signal of
general-purpose counters 0 and 1,
respectively.
Table 1.
TB-2705 Terminal Block E Series Signal Descriptions (Continued)
Signal Name
Reference
Direction
Description
