Dahua NVR52-4KS2 Series User Manual page 56

Name
Power switch
/
Power input port
MIC IN Audio input port
MIC OUT Audio output port
1–4 Alarm input port 1–4
GND
N1, N2
Alarm output port
C1, C2 1–2
Figure 2-72 Rear panel
Table 2-24 Rear panel description
Function
Power on/off button.
Power socket.
For NVR42-4KS2/NVR42-EI/NVR42-4KS3 series,
●
input 12 VDC/4 A.
For NVR42-P-4KS2 series, input 48 VDC/96 W.
●
For NVR42-P-EI/NVR42-P-4KS3 series, input 53
●
VDC/1.81 A.
Input 90~264-12 VAC 5 A/52 V 2.5 A-190 W.
For NVR42-8P-4KS2/NVR42-16P-4KS2/NVR42-8P-EI/
NVR42-8P-4KS3/NVR42-16P-4KS3 series product
only.
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 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 port.
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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User's Manual