Nvr52-4Ks2/52-8P-4Ks2/52-16P-4Ks2/5224-24P-4Ks2/52-16P-4Ks2E Series - Dahua NVR21-S2 Series User Manual

Name
MIC OUT
1～4
N1, N2
C1, C2
A
B
RS-232
HDMI
VGA
PoE
PORTS

2.2.8 NVR52-4KS2/52-8P-4KS2/52-16P-4KS2/5224-24P-4KS2/52-16P-4KS2E Series

Function
Audio output port. It is to output the analog audio signal
Audio output port
to the devices such as the sound box.




Alarm input port
1～4

GND Alarm input ground port.

Alarm output port
1～2


RS-485
RS485_A port. It is the cable A. You can connect to the
control devices such as speed dome PTZ.
communication
port
RS485_B.It is the cable B. You can connect to the
control devices such as speed dome PTZ.
Network port 10M/100M/1000Mbps self-adaptive Ethernet port.
Connect to the network cable.
USB2.0 USB2.0 port. Connect to mouse, USB storage device,
port USB burner and etc.
RS-232 debug It is for general COM debug to configure IP address or
COM. transfer transparent COM data.
High Definition High definition audio and video signal output port. It
Media Interface transmits uncompressed high definition video and
multiple-channel data to the HDMI port of the display
device. HDMI version is 1.4.
VGA video VGA video output port. Output analog video signal. It
output port can connect to the monitor to view analog video.
/ Bult-in Switch. Support PoE.
The 4 PoE series product supports total 48V 50W.
The 8 PoE series product supports total 48V 120W.
The 16 PoE series product supports total 120W. One
PoE port max supports 15W.
Bidirectional talk output.
Audio output on 1-window video monitor.
Audio output on 1-window video playback.
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.
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