Adtech ADT-RC400 User Manual page 76

Note:
OUT terminal for the output signal, the general proximity switch selected working power
10-30V, and the NPN output, photoelectric switches is similar.
Common input interface, based on the level of public input conditions corresponding to
the input active level is different.
INPUT
Input
Terminal
INPUTCOM
（a）Public grounded, input active high
INPUT
Input
Terminal
INPUTCOM
（b）Public termination high, input active low
Input terminal INPUTCOM side wiring
Figure 5-4
EXT_24V
EXT_24V
EXT_24V