
D3 Series
User Manual
P a g e
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Door Sensor Type
There are three Sensor types:
None
,
Normal Open
, and
Normal Closed
.
None:
It means the door sensor is not in use.
Normally Open:
It means the door is always left open when electric power is
on.
Normally Closed:
It means the door is always left closed when electric power is
on.