Samsung SNB-8000 User Manual page 42

installation & connection
to connect the external sensor
Connect one strand of each signal line (2-strand) of the sensors to the [aLarm in] port,
and connect the other strand to the [GnD] port.
alarm in wiring Diagram
External
connection
Sensor
to connect the alarm out
If devices (e.g., flashing light and siren) that exceed the voltage and current specifications
are connected by using the open collector method, it may cause malfunction.
Refer to the alarm out connection diagram below when connecting devices that exceed the
voltage and current specifications.
alarm out wiring Diagram
External connection
Warning
lamp / Siren
Warning lamp / Siren power
42_ installation & connection
Inside of the camera
RESISTOR
ALARM IN (5mA SINK) RESISTOR
GND
DC 5V or 3.3V
DIODE RESISTOR
10K ohm
2 1
NO TRANSISTOR
COM
NC
NO
COM
NC
RELAY
GND
VCC_3.3V
RESISTOR
DIODE
MLCC TRANSISTOR
GND
Inside of the camera
RESISTOR
ALARM OUT(12VDC 20mA MAX)
RESISTOR
1
TRANSISTOR
GND