Dahua DH-XVR4108C-X User Manual

The Grand Tour 29
No.
Port Name
Function
9
Alarm input port
1–16
Four groups of alarm output ports (Group 1: port 1 to port 4;

Group 2: port 5 to port 8; Group 3: port 9 to port 12; Group 4:
port 13 to port 16). These ports receive the signal from the
external alarm source. There are two types; NO (Normally
Open) and NC (Normally Closed).
When your alarm input device is using external power,

please make sure the device and the NVR have the same
ground.
Alarm output port
1–5 (NO1–NO5;
C1–C5; NC5)
Five groups of alarm output ports. (Group 1: port NO1–

C1,Group 2:port NO2–C2,Group 3:port NO3–C3, Group 4：
port NO4–C4, Group 5: port NO5, C5, NC5). 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.

NC: Normally closed alarm output port.

RS-485
communication
port
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
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. Please note the supplying power shall be below 1A.
Ground.
10
Video input port
Connect to analog camera to input video signal.
11
Network port
Connects to Ethernet port.
12
VGA video output
Outputs analog video signal. It can connect to the monitor to view
analog video.
13
RS-232 debug
COM.
It is for general COM debug to configure IP address or transfer
transparent COM data.
14
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.
Please note when the HDMI output resolution is 4K, the VGA
output stops.
15
USB port
Connects to the external devices such as keyboard, mouse, and
USB storage device.
16
eSATA port
External SATA port which connects to the device with SATA port.
Perform the jumper configuration when connecting HDD.

Dahua DH-XVR4108C-X Specifications

General

Brand	Dahua
Model	DH-XVR4108C-X
Category	DVR
Language	English