User`s manual

41
Port Name
Function
1.2
Alarm input port
1～2
 Alarm input port.
 When your alarm input device is using external
power, please make sure the device and the
NVR have the same ground.
Alarm input port
ground end
Alarm input ground end.
NO
Alarm output
port
 Alarm output port. Output alarm signal to the
peripheral alarm device. Please make sure
there is power to the external alarm device.
 NO: Normal open alarm output port.
 C: Alarm output public end.
C
Power input port
Input DC 12V/2A.
USB port
Connect to peripheral USB storage device, mouse,
DVD-burner and etc.
2.2.3 NVR22 Series
The NVR22 series rear panel is shown as below. See Figure 2-18.
Figure 2-18
Please refer to the following sheet for detailed information.
Port Name
Function
RS232(RS-422)
232 debug
COM.
It is for general COM debug to configure IP
address or transfer transparent COM data.
VGA
VGA video
output port
VGA video output port. Output analog video
signal. It can connect to the monitor to view
analog video.
HDMI
High Definition
Media
Interface
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 1.3.
USB2.0 port.
USB2.0 port. Connect to mouse, USB
storage device, CD-Burner and etc.
Network port
10M/100M/1000Mbps self-adaptive Ethernet
port. Connect to the network cable.
A
RS485
(RS-485)
RS485_A port. It is the cable A. You can
connect to the control devices such as speed
dome PTZ.