Hardware Manual - RTD Embedded Technologies, Inc.
Hardware Manual - RTD Embedded Technologies, Inc.
Hardware Manual - RTD Embedded Technologies, Inc.
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Connecting the Analog Input Pins<br />
The analog inputs on the DM6425HR can be set for single-ended or differential operation. It is good practice to<br />
connect all unused channels to ground.<br />
Single-Ended Mode<br />
When operating in single-ended mode, connect the high side of the analog input to one of the analog input<br />
channels, AIN1 through AIN32, and connect the low side to an ANALOG GND (pins 18 and 20–22 on CN3 and<br />
CN4). Figure 15 shows how these connections are made.<br />
I/O CONNECTOR<br />
(CN3)<br />
SIGNAL<br />
SOURCE<br />
1 OUT<br />
+<br />
PIN 1<br />
AIN 1<br />
GND<br />
SIGNAL<br />
SOURCE<br />
15 OUT<br />
+<br />
PIN 14<br />
AIN 15<br />
GND<br />
SIGNAL<br />
SOURCE<br />
16 OUT<br />
+<br />
PIN 16<br />
AIN 16<br />
GND<br />
PIN 22<br />
OUT +<br />
+<br />
I/O CONNECTOR<br />
(CN4)<br />
MUX<br />
OUT –<br />
–<br />
SIGNAL<br />
SOURCE<br />
17 OUT<br />
+<br />
PIN 1<br />
AIN 17<br />
GND<br />
SIGNAL<br />
SOURCE<br />
31 OUT<br />
+<br />
PIN 14<br />
AIN 31<br />
GND<br />
SIGNAL<br />
SOURCE<br />
32 OUT<br />
+<br />
PIN 16<br />
AIN 32<br />
GND<br />
PIN 22<br />
Figure 15<br />
Single-Ended Input Connections<br />
BDM-610010034 Rev C Chapter 3: Installing the dataModule 25
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