Dahua Technology DH-XVR7208A-4KL-I, Manual

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User’s Manual
30
No. Port Name Function
Four-wire full-
duplex RS-485 port
(T+, T-, R+, R-)
Four-wire full-duplex 485 port. T+ and T- is the output wire; R+ and
R- is the input wire.
Control power
output (CTRL 12V)
Controls the 6
th
channel power output for alarm.
Turns off power output when there is alarm output.
Turns on power output when the alarm is cleared.
12V power output
port Provides power to external devices such as camera and alarm device.
Note the supplying power shall be below 1A.
G Ground.
7
RS-232 debug
COM. It is for general COM debug to configure IP address or transfer
transparent COM data.
8 VGA video output
Outputs analog video signal. It can connect to the monitor to view
analog video.
9 Power button Turns on/off the Device.
10 Power input port Inputs power.
11 Loop out Outputs the video signal of the corresponding video input port.
12 Video input port Connect to analog camera to input video signal.
13 Network port Connects to Ethernet port.
14 USB port
Connects to the external devices such as keyboard, mouse, and USB
storage device.
15 eSATA port
External SATA port which connects to the device with SATA port.
Perform the jumper configuration when connecting HDD.
16 HDMI port
High definition audio and video signal output port. It outputs the
same video source as VGA. It supports 4K resolution output and
supports mouse operation and control.
Note when the HDMI output resolution is 4K, the VGA output stops.
17 GND Ground.