User Manual

User’s Manual
25
3.2.5 DH-XVR8816S-4KL-I/DH-XVR58xxS-I2/DH-XVR58xxS-4KL-
I2/DH-XVR78xxS-4K-I2
No. Port Name Function
1 GND Ground.
2 Power input port Inputs power.
3 Power button Turns on/off the Device.
4
Audio input port
Receives the analog audio signal output from the devices such as
microphone.
5
Audio input port
(MIC IN)
Tow-way talk input port which receives
the analog audio signal
output from the devices such as microphone, pickup.
6
Audio output port
(MIC OUT)
Tow-way talk output port which outputs the analog audio signal to
the devices such as the sound box.
7 Audio output port Outputs the analog audio signal to the devices such as the sound box.
8
Video output port
Connect to video output devices such as TV.
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.