Dahua NVR4204-P-4KS2 User Manual page 111

Name
Power switch
Power input port
Network port
eSATA eSATA port
USB3.0 port
High
HDMI
Media Interface
MIC IN
Audio input port
MIC OUT
Audio output port
1～16 Alarm
1～16
Ground
NO1～NO5 Alarm output port
1～5
C1～C5
NC5
Function
Power on-off button
Input AC 100~240V.
10M/100M/1000Mbps self-adaptive Ethernet port.
Connect to the network cable.
External SATA port. It can connect to the device of
the SATA port. Please jump the HDD when there is
peripheral connected HDD.
USB3.0 port. Connect to mouse, USB storage
device, USB burner and etc.
High definition audio and video signal output port. It
Definition transmits uncompressed high definition video and
multiple-channel data to the HDMI port of the display
device. HDMI version is 1.4b.
Bidirectional talk input port. It is to receive the analog
audio signal output from the devices such as
microphone, pickup.
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.

There are four groups. The first group is from
input port
port 1 to port 4, the second group is from port 5
to port 8, the third group is from 9 to 12, and the
fourth group is from 13 to 16. They are to receive
the signal from the external alarm source. 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.
Alarm input ground end.

5 groups of alarm output ports. (Group 1：port
NO1～C1,Group 2:port NO2～C2,Group 3:port
NO3～C3, Group 4：port NO4～C4, Group 5:
port NO5, C5, NC5).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.

NC: Normal close alarm output port.
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