No.
Port Name
Function
2
HDD
Glows blue when HDD status is abnormal.
3
NET
Glows blue when network status is abnormal.
4
POWER
Glows blue when the power is connected properly.
5
USB port
Connects to peripheral devices such as USB storage device,
keyboard, and mouse.
3.2
Rear Panel
3.2.1
1U
Figure 3-3
Table 3-3
No.
Port Name
Function
1
Ground terminal.
2
Alarm input port
1–16
Four 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 (Normally Open) and NC
(Normally Closed).
When your alarm input device is using external power, please
make sure the alarm input device and the DVR connect to the
same ground.
Alarm output port
1–3 (NO1–NO3;
C1–C3)
⚫
Three 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
：
Normally open alarm output port.
⚫
C
：
Alarm output public end.
Ground.
3
Video input port
Connects to analog camera to input video signal.
4
Audio input port
Receives audio signal output from the devices such as
microphone.
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