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C
IN2
A
B
RX
TX
G
NA
RESET
ABF
Alarm input port 2
RS485 port
RS232 port
GND
IR light port
RESET button
Auto back focus
adjustment
-
output alarm signal to
the alarm device.
NO: Normal open
alarm output end.
C: Alarm output
public end.
Alarm input port. To
receive the signal from
the external alarm
device.
RS485_A port, control
external PTZ
RS485_B port, control
external PTZ
RS232_RX，RS232
receive end.
RS232_TX，RS232
COM send out end.
RS232 ground end
External IR light signal
control port.
Restore factory default
setup.
When system is
running normally,
press the RESET
button for at least 5
seconds, system can
restore factory default
setup.
Auto back focus
adjustment, by
adjusting Sensor
position to achieve
precise focus.
12
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