©
National Instruments Corporation
9
SCC-CI20 Current Input Module User Guide
SCC-CI20 Module Pin Assignments
Figure 3 shows the I/O connector pins on the bottom of the module.
Figure 3.
SCC Module Bottom View
Table 1 lists the signal connection corresponding to each pin. AI (
X
) and
AI (
X
+
8) are the analog input signal channels of the E Series DAQ device.
AI GND is the analog input ground signal and is the reference for AI (
X
)
and AI (
X
+
8). A GND is the reference for the
±
15V supplies. AI GND and
A GND connect to the SC-2345 at the SCC-PWR connector. Pins 17 to 20
accept signals from a first-stage module if you are cascading two modules.
1 Pin 1
2
Pin 2
3
PWB Key
4
Pin 19
5 Pin 20
Table 1.
SCC-CI20 Pin Signal Assignments
Pin Number
Signal
1
E Series AI (
X
)
2
E Series AI GND
3
—
4
E Series AI (
X
+
8)
5
—
6
E Series AI GND
7
—
8
E Series AI GND
5
4
2
1
3
