Nvr42-4K Series - Dahua NVR100 series User Manual

Name
MIC OUT Audio output port
Alarm input port
1 ～ 4
1
～
GND
N1, N2 Alarm output port
1 ～
C1, C2
A
RS-485
communication
port
B
Network port
RS-232
RS-232
COM.
High
HDMI
Media Interface
VGA
VGA
output port
PoE
/
PORTS

2.2.6 NVR42-4K Series

The NVR42-4K series rear panel is shown as below. See Figure 2-27.
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.
There are two types; NO (normal open)/NC
(normal close).
When your alarm input device is using external
4
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
NO1
2
signal to the alarm device. Please make sure there
is power to the external alarm device.
NO
C
：
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.
10M/100M/1000Mbps self-adaptive Ethernet port.
Connect to the network cable.
USB2.0 USB2.0 port. Connect to mouse, USB storage device,
port USB burner and etc.
debug It is for general COM debug to configure IP address or
transfer transparent COM data.
High definition audio and video signal output port. It
Definition transmits uncompressed high definition video and
multiple-channel data to the HDMI port of the display
device. HDMI version is 1.4.
video VGA video output port. Output analog video signal. It
can connect to the monitor to view analog video.
Bult-in Switch. Support PoE.
The 4 PoE series product supports total 48V 50W.
The 8 PoE series product supports total 48V 120W.
One PoE port max supports 15W.
C 1,Group 2:port NO2
～
N ormal open alarm output port.
：
A larm output public end.
p ort
：
C 2).Output alarm
～
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