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iXC4e/XC4e
3.2. Digital Inputs [-EB1]
Input bits are arranged in groups of 4 and each group shares a common pin. This lets a group be
connected to current sourcing or current sinking devices, based on the connection of the common
pin in that group.
To be able to connect an input group to current sourcing devices, connect the input group's
common pin to the power supply return (-). Refer to
To be able to connect an input group to current sinking devices, connect the input group's
common pin to the power supply source (+). Refer to
The digital inputs are not designed for high-voltage isolation applications. They should only be used
with ground-referenced circuits.
Table 3-5:
Digital Input Specifications [-EB1]
Input Voltage
+5 V to +24 V
Table 3-6:
Digital Input 1 Connector Pinout [-EB1]
Pin# Description
1
Input Common for Inputs 4-7
2
Input 4 (Optically-Isolated)
3
Input 5 (Optically-Isolated)
4
Input 6 (Optically-Isolated)
5
Input 7 (Optically-Isolated)
6
Input Common for Inputs 8-11
7
Input 8 (Optically-Isolated)
8
Input 9 (Optically-Isolated)
9
Input 10 (Optically-Isolated)
10
Input 11 (Optically-Isolated)
94
Approximate Input Current
6 mA
Figure
3-6.
Figure
3-7.
Turn On Time
10 µs
In/Out/Bi
Output
Input
Input
Input
Input
Output
Input
Input
Input
Input
Hardware Manual
Turn Off Time
43 µs
Connector
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