Dahua Technology DH-XVR7208A-4KL-I, Manual

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User’s Manual
27
No. Port Name Function
12
Alarm output port 1–
5 (NO1–NO5;
C1–C5; NC5)
5 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. Make sure power supply to the external
alarm device.
NO: Normal open alarm output port.
C: Alarm output public end.
NC: Normal close alarm output port.
13 Power button Turns on/off the DVR.
14 Ground.
3.2.5 DH-XVR8816S-4KL-I/DH-XVR58xxS-I2/DH-XVR58xxS-4KL-I2/DH-
XVR78xxS-4K-I2
Rear panel
Table 3-15 Rear panel description
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.