Dahua NVR4104HS-P-EI 4CH Compact 1U 4PoE 1HDD WizSense Network Video Recorder

Dahua Network Video Recorder User's Manual V2.3.4 - Page 65

For NVR4104HS-P-EI.

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Port Name Connection Function
MIC IN Audio input port
Bidirectional talk input port. It is to receive the analog audio
signal output from the devices such as microphone, pickup.
MIC OUT Audio output port
Audio output port. It is to output the analog audio signal to
the devices such as the sound box.
Bidirectional talk output.
Audio output on 1-window video monitor.
Audio output on 1-window video playback.
RS-232
RS-232 debug
COM
It is for general COM debug to congure IP address or
transfer transparent COM data.
Network port
10/100 Mbps self-adaptive Ethernet port. Connect to the
network cable.
USB port USB port. Connect to mouse, USB storage device and more.
VGA
VGA video output
port
VGA video output port. Output analog video signal. It can
connect to the monitor to view analog video.
HDMI
High Denition
Media Page
High denition audio and video signal output port. It
transmits uncompressed high denition video and
multiple-channel data to the HDMI port of the display
device. HDMI version is 1.4.
NO1
Alarm output port
1 group of alarm output ports (port NO1–C1). Output
alarm signal to the alarm device. Please make sure there
is power to the external alarm device.
NO: Normal open alarm output port.
C: Alarm output public end.
C1
CTRL
Controllable power supply output.
Control the output of the on-o button
alarm relay. It controls the alarm device
with the presence or absence of voltage.
It can also be used as power input for
some alarm devices such as alarm
detectors.
The two ports
serve as another
group of alarm
output ports.
P
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 1 A.
PoE PORTS PoE port
Built-in switch. Support PoE function.
For PoE series product, you can use this port to provide
power to the network camera.
Power switch Power on/o button.
User's Manual
51
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