Nvr21Hs-I/Nvr21Hs-I2 Series - Dahua NVR52-4KS2 Series User Manual

Port Name
VGA
HDMI
NO1
C1
CTRL
P
PoE PORTS

2.2.20 NVR21HS-I/NVR21HS-I2 Series

The figure is for reference only.
Connection Function
VGA video output VGA video output port. Output analog video signal. It can
port connect to the monitor to view analog video.
High definition audio and video signal output port. It
High Definition transmits uncompressed high definition video and
Media Page multiple-channel data to the HDMI port of the display
device. HDMI version is 1.4.
1 group of alarm output ports (port NO1–C1). Output
●
alarm signal to the alarm device. Please make sure there
is power to the external alarm device.
Alarm output port
NO: Normal open alarm output port.
●
C: Alarm output public end.
●
Controllable power supply output.
Control the output of the on-off button
alarm relay. It controls the alarm device
— with the presence or absence of voltage.
It can also be used as power input for
some alarm devices such as alarm
detectors.
Power output port. It can provide power
to some peripheral devices such as
— camera and alarm device. Make sure the
power supply of peripheral device shall
be below 1 A.
Built-in switch. Support PoE function.
PoE port
For PoE series product, you can use this port to provide
power to the network camera.
Power switch Power on/off button.
Power input port Power socket.
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User's Manual
The two ports
serve as another
group of alarm
output ports.