National Instruments SCC-LP04 Manual De Usuario
© National Instruments Corporation
5
SCC-LP Series Lowpass Filter Modules User Guide
The signal source can be floating or ground-referenced. The SCC-LPXX
input circuitry includes high-impedance bias resistors typically required for
floating sources. Therefore, floating signal sources do not require external
bias resistors connected to ground.
input circuitry includes high-impedance bias resistors typically required for
floating sources. Therefore, floating signal sources do not require external
bias resistors connected to ground.
Note
For floating signal sources in high-noise environments, connect the negative
terminal of the signal source to the AI GND terminal on the SC-2345 screw-terminal block
to reduce common-mode noise.
to reduce common-mode noise.
Figure 1. SCC-LPXX Signal Connections
For information about configuring the SCC-LPXX module using
NI-DAQmx, refer to the SCC Quick Start Guide.
NI-DAQmx, refer to the SCC Quick Start Guide.
AI (X )
AI (X+8)
SCC-LP
+
–
–
E Series DAQ Device
+
–
–
+
–
–
+
–
–
Signal source may be floating or ground-referenced.
10 M
Ω
10 M
Ω
AI SENSE
1
3
4
2
AI GND
Fourth-Order
Butterworth
Lowpass
Filter
1 k
Ω
1 k
Ω
1 k
Ω
1 k
Ω
Fourth-Order
Butterworth
Lowpass
Filter
Signal
Sources