Dahua NVR100 series User Manual page 75

Name
USB2.0 port
Network port
RS-232
RS-232
COM.
High Definition
HDMI
Media Interface
VGA
VGA
output port
MIC IN Audio input port
MIC OUT Audio output port
Alarm input port
1 8
～
1 ～ 8
GND
NO1 N O3
～
Alarm output port
1 ～ 3
C1 C 3
～
A
RS-485
communication
port
B
Power input port
Function
USB2.0 port. Connect to mouse, USB storage device,
USB burner and etc.
10M/100M/1000Mbps self-adaptive Ethernet port.
Connect to the network cable.
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
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.
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 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 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.
Alarm input ground port.
3 groups of alarm output ports. (Group 1
NO1 C 1,Group 2:port NO2
～
NO3 ～ C 3 ）
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.
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.
Input DC 12V/5A.
C 2,Group 3:port
～
) .Output alarm signal to the alarm
p ort
：
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