NI DAQPad-6016 OEM User Guide
6
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Pin 1 is connected to VDC through the fuse (reference designator XF1).
The VDC is the voltage provided by the power supply through the power
connector (reference designator J10) and must be 9–25 V.
Pin 2 provides power to the circuitry on the DAQPad-6016 OEM. When
the switch is in the On position, the VDC power supply from pin 1 is routed
to pin 2.
Pin 3 connects pin 2 to ground when the switch is in the Off position.
This allows the charge on the DAQPad-6016 OEM to leak to ground when
it is powered off.
Figure 5 shows a schematic of the switch.
Figure 5.
Schematic of the DAQPad-6016 OEM Switch
NRSE/RSE Switch (111 mm
×
163 mm Version)
The DAQPad-6016 OEM device can make differential or single-ended
analog input measurements.
In nonreferenced single-ended (NRSE) mode, the ground reference signal
is provided by the user on the AI SENSE pin. In referenced single-ended
(RSE) mode, the ground reference signal is AI GND, the ground of the
DAQPad-6016 OEM device.
SW1
XF1
FUSE
3
Power to
Device
J10
Power
Connector
1
2
