Nvr44/44-8P/44-16P Series - Dahua NVR100 series User Manual

Icon
VGA
MIC IN
MIC OUT
1 ～ 4
N1,N2
C1 ～ C 2
A
B

2.2.8 NVR44/44-8P/44-16P Series

The NVR44 series rear panel is shown as below. See Figure 2-29.
The NVR44-8P series rear panel is shown as below. See Figure 2-30.
Port Name Function
VGA video output VGA video output port. Output analog video signal. It
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
microphone, pickup.
Audio output port. It is to output the analog audio
Audio output port
signal to the devices such as the sound box.
Alarm input port
1 ～ 4
GND Alarm input ground port.
Alarm output port
1 2
～
RS485_A port. It is the cable A. You can connect to
RS-485
the 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.
Figure 2-29
Bidirectional talk output.
Audio output on 1-window video monitor.
Audio output on 1-window video playback.
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.
2 groups of alarm output ports.
NO1 C 1, group 2 p ort NO2
～ ：
alarm signal to the alarm device. Please make
sure there is power to the external alarm device.
NO N ormal open alarm output port.
：
C A larm output public end.
：
（ g roup 1 ： p ort
C 2 . Output
～ ）
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