Dahua HDCVI series, User Manual

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44
SN Icon Name Note
1 Power switch Power on/off button.
2 1
～
8(16) Alarm input
port 1
～
8(16)

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 DVR
have the same ground.
NO1
～
NO3 Alarm output
port 1
～
3

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.
C1
～
C3
3 VGA VGA video
output
port
VGA video output port. Output analog video signal.
Can connect to the monitor to view ananlog video
output.
4 AUDIO IN Audio input
port
Connect to audio input device such as speaker.
5 VIDEO IN Video input
port
Connect to analog camera, video input signal.
6 GND Alarm input ground port.
7 Power input
port
Input 12V DC.
8 USB2.0 port Connect to USB storage device, mouse, burning
DVD-ROM and etc.
9 A RS485
（
RS-485
）
communicati
on port
RS485_A port. It is the cable A. You can connect to
the control devices such as speed dome PTZ.
B RS485_B.It is the cable B. You can connect to the
control devices such as speed dome PTZ.
10 HDMI High
Definition
Media
Interface
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.
11 Network port
100M Ethernet port
12 AUDIO
OUT
Audio output
port
Connect to video output device such as sound box.