Samsung SNB-7004 - Page 50

installation & connection
50_ 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
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 (SNB-7004/SNV-7084)
Sensor
GND
RESISTORALARM IN (5mA SINK)
RESISTOR RESISTOR
VCC_3.3V
DIODE
GND
MLCC
TRANSISTOR
External
connection
Inside of the camera
1
2
1
2
3
3
2
1
DC 5V or 3.3V
DIODE
COM
RESISTOR
COM
NC
NO
NC
NO
RELAY
Warning
lamp / Siren
Warning lamp / Siren power GND
TRANSISTOR
ALARM OUT(12VDC 20mA MAX)
TRANSISTOR
GND
RESISTOR RESISTOR
10K ohm
External connection Inside of the camera