Dahua DH-XVR4108C-X User Manual

The Grand Tour 30
Table 3-20
3.2.11 DH-XVR7816S-4KL-X-LP
Figure 3-22
No.
Port Name
Function
1
Audio output port
Outputs the analog audio signal to the devices such as the sound
box.
2
Video output port
Connect to video output devices such as TV.
3
Audio input port
(MIC IN)
Tow-way talk input port which receives the analog audio signal
output from the devices such as microphone, pickup.
4
Audio output port
(MIC OUT)
Tow-way talk output port which outputs the analog audio signal to
the devices such as the sound box.
5
Audio input port
Receives the analog audio signal output from the devices such
as microphone.
6
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.

Dahua DH-XVR4108C-X Specifications

General

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