Nvr72-8P Series - Dahua NVR4108-P User Manual

Name
HDMI
VGA
MIC IN
MIC OUT
1～8
NO1～NO3
C1～C3
A
B
Power
switch

2.2.9 NVR72-8P Series

The NVR72-8P series rear panel is shown as below. See Figure 2-30.
Function
High definition audio and video signal output port. It
High Definition transmits uncompressed high definition video and
Media Interface multiple-channel data to the HDMI port of the display
device. HDMI version is 1.4.
VGA video VGA video output port. Output analog video signal. It
output port can connect to the monitor to view analog video.
Audio input port Bidirectional talk input port. It is to receive the analog
audio signal output from the devices such as mike
phone, pickup.
Audio output port. It is to output the analog audio signal
Audio output port
to the devices such as the sound box.




Alarm input port
1～8

GND Alarm input ground port.

Alarm output port
1～3


RS485_A port. It is the cable A. You can connect to the
RS-485
control devices such as speed dome PTZ.
communication
RS485_B.It is the cable B. You can connect to the
port
control devices such as speed dome PTZ.
Power input port Input DC 12V/5A.
/ Power on/off button.
Bidirectional talk output.
Audio output on 1-window video monitor.
Audio output on 1-window video playback.
There are two groups. The first group is from port
1 to port 4, the second group is from port 5 to port
8. They are to receive the signal from the external
alarm source. There are two types; NO (normal
open)/NC (normal close).
When your alarm input device is using external
power, please make sure the device and the NVR
have the same ground.
3 groups of alarm output ports. (Group 1：port
NO1 ～ C1,Group 2:port NO2 ～ C2,Group 3:port
NO3 ～ C3） ).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.
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