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Dahua IP DVR NVR4216-I Manual

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34
No.
Port Name
Function
6
RS232 port
It is for general COM debugging to configure IP address and
transfer transparent COM data.
7
Alarm input port
(1-16)
There are four groups: 1-4, 5-8, 9-12 and 13-16.
They receive signals from external alarm source. Alarm
input includes two types; NO (normal open) and NC
(normal close).
When your alarm input device is using external power,
make sure the device and the NVR have the same
GND.
Alarm output port
(NO1-NO5, C1-C5,
NC5)
Five groups of alarm output ports (Group 1: NO1-C1,
Group 2: NO2-C2, Group 3: NO3-C3, Group 4:
NO4-C4, Group 5: NO5, C5, NC5).Output alarm signal
to the external alarm device. Make sure power supply is
available for the external alarm device.
NO: Normal open alarm output port.
C: Alarm output public end.
NC: Normal close alarm output port.
GND. Alarm input ground port.
RS485 port (A, B)
RS485_A port. Control cable A of the 485 device. It
connects external devices such as speed dome and
PTZ.
RS485_B port. Control cable B of the 485 device. It
connects external devices such as speed dome and
PTZ.
CTRL
Controllable 12V power output. It is to control the on-off
alarm relay output. It can be used to control the device
alarm output. At the same time, it can also be used as the
power input source of some devices such as alarm detector.
+12V power output port. It can provide power to some
peripheral devices such as camera and alarm device. Make
sure the power supply of peripheral device shall be below
1A.
8
MIC IN
Bidirectional talk input port. It is to receive analog audio
signal from devices such as microphone, sound pickup.
MIC OUT
Audio output port. It is to output analog audio signal to
devices such as sound box.
Bidirectional talk output.
Audio output on 1-window video monitor.
Audio output on 1-window video playback.
9
USB port
USB3.0 port. Connect to devices such as mouse, USB
storage device and USB burner.
10
Network port
10M/100M/1000Mbps self-adaptive Ethernet port. Connect
to the network cable.
11
Power input port
Input power of 100V-240V and 50Hz-60Hz.
12
GND.
… 45 …


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