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8 digital inputs 100 ... 240 V AC (I0 ... I7) in 8 groups
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Module-wise galvanically isolated

1
I/O bus
2
8 yellow LEDs to display the signal states of the inputs I0 ... I7
3
Terminal number
4
Allocation of signal name
5
Terminal block for input signals (9-pin)
6
Terminal block for input signals (11-pin)
7
2 holes for wall-mounting with screws
8
DIN rail