User's Manual
27
No. Port Name Function
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 definition audio and video signal output port.
The port outputs the uncompressed high definition
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/off 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
Table 3-14 Rear panel description
No. Port Name Function
1 Video input port Connects to analog camera to input video signal.
2 Audio output port
Outputs audio signal to the devices such as the
sound box.
3 MIC IN
Two-way talk input port which receives analog
audio signal output from the devices such as
microphone and pickup.
4 Audio input port
Receives audio signal output from the devices such
as microphone.
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