Dahua Lite NVR2104-4KS2 - Alarm Connection

110
The 4K 2U (S2) with sixteen PoE ports series rear panel is shown as below. See Figure 2-64.
Figure 2-64
Please refer to the following sheet for detailed information.
Name
Function
Power switch
/
Power on-off button
Power input
port
/
AC90V~264V-12V12.5A/-53V2.83A
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.
MIC OUT
Audio output port
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.
VIEDEO
OUT
Video output port
CVBS output.
1～16
Alarm input port
1～16
 There are four groups. The first group is from
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.
GND
Alarm input ground port.
NO1～NO5
Alarm output port
1～5
 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.
C1～C5
NC5