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

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MIC OUT
1～4
N1,N2
C1～C2
A
B

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

The NVR44 series rear panel is shown as below. See Figure 2-49.
The NVR44-8P series rear panel is shown as below. See Figure 2-50.
The NVR44-16P series rear panel is shown as below. See Figure 2-51.
Port Name
Audio output port
Alarm input port
1～4
GND
Alarm output port
1～2
RS-485
communication
port
Figure 2-49
Figure 2-50
Function
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.

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.
Alarm input ground port.

2 groups of alarm output ports.（group 1：port
NO1～C1, group 2：port NO2～C2）. 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.
RS485_A port. It is the cable A. You can connect to
the control devices such as speed dome PTZ.
RS485_B.It is the cable B. You can connect to the
control devices such as speed dome PTZ.
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