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No. Port Name Function
Alarm output port 1–3
(NO1–NO3;C1–C3)
●
Three groups of alarm output ports. (Group 1: port
NO1–C1, Group 2: port NO2–C2, Group 3: port NO3–
C3). These ports output alarm signal to the alarm
device. Please make sure power supply to the
external alarm device.
●
NO: Normally open alarm output port.
●
C: Alarm output public end.
Ground.
3 Video input port Connects to analog camera to input video signal.
4 Audio input port
Receives audio signal output from the devices such as
microphone.
5 Audio output port
Outputs audio signal to the devices such as the sound
box.
6 HDMI port
High denition audio and video signal output port.
The port outputs the uncompressed high denition
video and multi-channel audio data to the connected
display with HDMI port.
7 USB port
Connects to the external devices such as keyboard,
mouse, and USB storage device.
8 Network port Connects to Ethernet port.
9 RS-485 communication port
Connects to the control devices such as speed dome
PTZ. RS-485_A port is connected by the cable A and
RS-485_B is connected to the cable B.
10 Power input port Inputs 12 VDC power.
11 VGA port
Outputs analog video data to the connected display
with VGA port.
12 Power button Turns on/o the DVR.
13 Power cable fastener
Use clamp to secure the power cable on the DVR in case
there is any loss.
3.2.4 DH-XVR82xxA-4K-I/DH-XVR82xxA-4KL-I
Figure 3-15 Rear panel
User's Manual
29
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