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installation & connection
connecting an external rS-485 device (SnB-6003/SnB-6004)
Connect the camera with an external device using the [rS-485 +, -] ports.
You can control the pan/tilt operations of the camera via RS-485 communications.
The GND connection is recommended for RS-485 communications. If you encounter a communication
`
failure, connect the GND pin as appropriate to correct the GND level between camera and external device.
connecting to the i/o port box (SnD-6083/SnD-6084)
Connect the Alarm I/O cable to the corresponding port of the inner port box.
• ALARM OUT : Used to connect the alarm output signal.
• ALARM IN : Used to connect the alarm input sensor or external day/night sensor.
• GND : Used for earth-grounding.
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
38_ installation & connection
Inside of the camera
RESISTOR
ALARM IN (5mA SINK)
RESISTOR
GND
Alarm
Sensor
VCC_3.3V
RESISTOR
DIODE
MLCC
TRANSISTOR
GND
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