Dahua DH-XVR4104C-X, User Manual

Page: 31 / 327

The Grand Tour 19
3.2.4 DH-XVR5108H-X/DH-XVR5116H-X/DH-XVR5104H-4KL-X/D
H-XVR5108H-4KL-X/DH-XVR5116H-4KL-X/DH-XVR5108HE-X/DH-
XVR5116HE-X/DH-XVR7104HE-4KL-X/DH-XVR7108HE-4KL-X/DH
-XVR7116HE-4KL-X/DH-XVR7108HE-4K-X/DH-XVR5104H-X/DH-X
VR5104HE-X/DH-XVR5108H-4KL-X-8P
Figure 3-15
No. Port Name Function
1
Alarm input port
1
–16
4 groups of alarm input 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 (normal open) and NC (normal
close).
When your alarm input device is using external power, please
make sure the alarm input device and the Device have the same
ground.
Alarm output port
1
–3 (NO1–NO3;
C1
–C3)
3 groups of alarm output ports (Group 1: port NO1
–C1,

Group 2: port NO2
–C2, Group 3: port NO3–C3). These ports
output alarm signal to the alarm device. Please make sure
power supply to the external alarm device.
NO: Normal open alarm output port. 
C: Alarm output public end.

Ground.
2 Video input port Connects to analog camera to input video signal.
3 Audio input port
Receives audio signal output from the devices such as
microphone. It corresponds to video input port 1.
4 DB25 port
Connects to the audio splitter taken from the package to convert
to audio input port which receives the audio signal from devices
such as microphone. It corresponds to video input ports 2
–16.
5 Audio output port Outputs audio signal to the devices such as the sound box.