Port Name Connection Function
and multiple-channel data to the HDMI port of the
display device. HDMI version is 1.4.
MIC IN Audio input port
Bidirectional talk input port. It is to receive the
analog audio signal output from the devices such
as microphone, pickup.
MIC OUT Audio output port
Audio output port. It is to output the analog audio
signal to the devices such as the sound box.
●
Bidirectional talk output.
●
Audio output on 1-window video monitor.
●
Audio output on 1-window video playback.
VGA VGA video output port
VGA video output port. Output analog video
signal. It can connect to the monitor to view
analog video.
PoE PORTS PoE port
Built-in switch. Support PoE function.
For PoE series product, you can use this port to
provide power to the network camera.
1–4 Alarm input port 1–4
●
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.
GND Alarm input ground port.
N1, N2
Alarm output port 1–2
●
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.
C1, C2
Network port
10/100 Mbps self-adaptive Ethernet port. Connect
to the network cable.
Power input port Power socket.
Power switch Power on/o button.
2.2.14 NVR21-P-I/NVR21-P-I2 Series
The gure is for reference only.
User's Manual
42
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