dS1242
dS1242 User Manual v4.10
Connection Examples
Example input - connecting a
switch
Connecting a simple switch could not
be easier, just wire the switch be-
tween a pin (P) and ground (G).
When the switch closes the input will
become active.
Example output - connect a relay
You can connect your own 12V relays,
the first coil pin of the relay is wired
to the 12V supply terminals on the
board, the other is wired to the out-
put pin (P). When the output pin be-
comes active it is driven down to 0V
ground, the relay will have 12V
across the terminals and switch so
COM is connected to NO.
Representative Digital I/O
Schematic
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