Dahua DH-XVR5104HS-4KL-I3 User Manual page 41

No. Port Name
RS-485
communication
port
Four-wire full-
duplex RS-485 port
(T+, T-, R+, R-)
Control power
output (CTRL 12V)
12V power output
port
8 Network port
RS-232 debug
9
COM.
10 USB port
11 VGA video output
10 Video input port
11 Network port
12 eSATA port
13 HDMI port
14 Power button
15 Power input port
16 GND
Function
You can connect 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.
Four-wire full-duplex 485 port. T+ and T- is the output wire; R+ and
R- is the input wire.
Controls 12 VDC power output. It is to control the on-off alarm relay
output.
Provides power to external devices such as camera and alarm device.
Note the supplying power shall be below 1A.
Ground.
Connects to Ethernet port.
It is for general COM debug to configure IP address or transfer
transparent COM data.
Connects to the external devices such as keyboard, mouse, and USB
storage device.
Outputs analog video signal. It can connect to the monitor to view
analog video.
Connect to analog camera to input video signal.
Connects to Ethernet port.
External SATA port which connects to the device with SATA port.
Perform the jumper configuration when connecting HDD.
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.
Turns on/off the Device.
Inputs power.
Ground.
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User's Manual