Samsung SNC-570 User Manual page 40

Network Camera SNC-570
Connecting Alarm Input
This is the input terminal for external alarm signal, use it by
connecting as following.
CMOS
CMOS 입력
Input
In case of selecting Normal Open at setup menu:
In case of contact type, it is short and in case of active type,
sensor input acts at "LOW" level.
In case of selecting Normal Close at setup menu:
In case of contact type, it is open and in case of active type,
sensor input acts at high impedance status(open collector).
36
DC+3.3V
47KΩ
220Ω
0.1
카메라 내부
Camera Inside
Alarm In
GND
Sensor