Orion 185LEDA User Manual page 17

TRIGGER OPTION
N/C(Normally Closed):
The Trigger function is activated when
the trigger cable is opened.
N/O(Normally Opened):
The Trigger function is activated when
the trigger cable is closed.
High:
The Trigger function is activated when
the trigger signal is DC 2~5[V].
Low:
The Trigger function is activated when
the trigger signal is DC 0~0.6[V].
Note: In this case, trigger port has high
status electrically, so the trigger cable
has to have ground(or earth) status to
be activated.
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