User's Manual
32
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 12 VDC power output. It is to control the on-off
alarm relay output.
12V power output port
Provides power to external devices such as camera and
alarm device. Please 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.
3.2.7 DH-XVR54xxL-I2/DH-XVR54xxL-4KL-I2/DH-XVR54xxL-I3/DH-
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