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Port Name
PoE PORTS
1–4
N1, N2
C1, C2
2.2.15 NVR21-P-I/NVR21-P-I2 Series
The figure is for reference only.
Connection
Function
Built-in switch. Support PoE function.
PoE port
For PoE series product, you can use this port to
provide power to the network camera.
●
Alarm input port 1–4
●
GND
Alarm input ground port.
●
Alarm output port 1–2
●
●
10/100 Mbps self-adaptive Ethernet port. Connect
Network port
to the network cable.
Power input port
Power socket.
Power switch
Power on/off button.
Figure 2-81 Rear panel
50
There are two types; NO (normal open)/NC
(normal close).
When your alarm input device is using external
power, please make sure the device and the
NVR have the same ground.
2 groups of alarm output ports. (Group 1: port
NO1–C1,Group 2: port NO2–C2).Output alarm
signal to the alarm device. Please make sure
there is power to the external alarm device.
NO: Normal open alarm output port.
C: Alarm output public end.
User's Manual
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