
3. External Connection
38
SMC-4DF-PCI, SMC-8DF-PCI
Control signal/general-purpose signal output circuit(OUT1 -
OUT3, ERC, CP1, CP2)
Output circuit of each output signal on this product is illustrated below. The signal output is an
open-collector output. A ground wire must therefore be connected for driving.
-
+
+12 - +24VDC
GND
OUT1 - OUT3
Board Driver Unit
Figure 3.10. Output circuit
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