Samsung SCC-C7478 - Manual (Page 14)

14 – 36x SMART DOME CAMERA
Installation
Video Connection
Connect with BNC coaxial cable.
Alarm Input Connection
Sensor Input
a It is noted that short circuit between GND and
Input pin means alarm activation.
If you want to use Alarm Input, the types of sensor
must be selected in OSD menu. The sensor types
are Normal Open and Normal Close If sensor type
is not selected properly, the alarm can be activated
reversely.
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Alarm Output
There are 4 Alarm Outputs and all of them are
Relay contact type. Therefore, you do not have
to care about polarity, AC/DC, and isolations
between channels. Care must be taken for the
power capacity of relay contact written above.
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GND
IN 5
IN 1
IN 2
IN 3
IN 4
IN 6
IN 7
IN 8
INTERNAL