Table of Contents
Advertisement
Specifications
Electrical
1
The excitation output channels must be configured for DC coupling.
2
In instrumentation terminology, DC coupling means that both DC and AC signals are passed. AC coupling means that DC
signals are blocked and AC signals are passed.
3
Does not apply to the SCXI-1120/D, SCXI-1121, SCXI-1125, or SCXI-1126.
SCXI-1305 Installation Guide
All specifications are typical at 25 °C unless otherwise specified.
Compatible modules
SCXI-1120/D...................................8 input channels
SCXI-1121.......................................4 input channels and
SCXI-1125.......................................8 input channels
SCXI-1126.......................................8 input channels
SCXI-1140.......................................8 input channels and
SCXI-1141.......................................8 input channels and
SCXI-1142.......................................8 input channels and
SCXI-1143.......................................8 input channels and
Coupling .................................................DC or AC (selectable on
AC coupling circuitry
Corner frequency (–3 dB)................0.16 Hz
DC-rejection capacity......................±42 VDC
Input impedance (minimum)
Between CH+ and
CH– terminals ..........................2 MΩ
Between CH+ or CH–
terminal and ground .................1 MΩ
4 excitation output channels
one external clock signal
two clock signals
two clock signals
two clock signals
a per-channel basis using
slide switches)
10
2
3
1
ni.com
Advertisement
Table of Contents
