User's Manual
52
Port Name Connection Function
P —
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.
The two ports
serve as
another group
of alarm
output ports.
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.
Power switch Power on/off button.
Power input
port
Power socket.
2.2.19 NVR21HS-I/NVR21HS-I2 Series
The figure is for reference only.
Figure 2-88 Rear panel
Table 2-34 Rear panel description
Port Name Connection Function
GND Ground end.
USB port
USB port. Connect to mouse, USB storage device
and more.
HDMI
High Definition
Media Page
High definition audio and video signal output
port. It transmits uncompressed high definition
video 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.
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