Samsung QND-6010R User Manual page 22

installation & connection
<QNV-6010R/6020R/6030R>
• ALARM-IN : Used to connect the alarm input sensor or external day/night sensor.
• ALARM-OUT : Used to connect the alarm output signal.
• GND : Common port for alarm in/output signal.
If devices (e.g., flashing light and siren) that exceed the voltage and current specifications are connected by using the open
`
J
collector method, it may cause malfunction.
Refer to the "Alarm Out Wiring Diagram" when connecting devices that exceed the voltage and current specifications. (page
22)
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.
22_ installation & connection
Sensor Alarm
(Warning lamp)
alarm in wiring Diagram
External Inside of the camera
VCC_3.3V
connection
RESISTOR
Sensor
ALARM IN (5mA SINK) RESISTOR
MLCC TRANSISTOR
GND
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 /
DC 5V or 3.3V
Siren power
(-) (+)
DIODE
RESISTOR 10K ohm
TRANSISTOR
Warning lamp /
RELAY
Siren
GND
RESISTOR
DIODE
GND
Inside of the camera
ALARM OUT (12VDC 20mA MAX)
RESISTOR
TRANSISTOR
GND
GND