User's Manual

TM70Pi V3.2 (11/03) 120021.pdf. 66
IKUSI reserves the right to change this information without prior notice.
If there is no external voltage range available, the card provides through pin number 1 (+VI), a voltage
between 12 and 20 volts, to activate the inputs as shown in the figure 2.
Block diagram of the signals (see figure 3):
+VI
IN1
IN2
IN3
IN4
GND
IN4D
1
2
3
4
5
6
I3
1
2
3
4
5
6
I1
Figure 2
+VI
IN1
IN2
IN3
IN4
GND
LR70
GND
+VI
3.3V
GND
GND
IN
IN4D
1
2
3
4
5
6
I3
1
2
3
4
5
6
I1
1
2
3
4
5
6
P16
Figure 3