Nvr42-8P-4K Series - Dahua NVR4104-P-4KS2 User Manual

Icon Port Name
RS-232
RS-232
COM.
VGA video output
VGA
port
MIC IN Audio input port
MIC OUT Audio output port
Alarm input port
1～8
1～8
GND
NO1～NO3
Alarm output port
1～3
C1～C3
A
RS-485
communication
port
B
Power input port
Power
/
switch
PoE
/
PORTS

2.2.12 NVR42-8P-4K Series

Function
debug It is for general COM debug to configure IP address or
transfer transparent COM data.
VGA video output port. Output analog video signal. It can
connect to the monitor to view analog video.
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 groups. The first group is from port 1
to port 4; the second group is from port 5 to port 8.
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 port.
 3 groups of alarm output ports. (Group 1 ： port
NO1 ～ C1,Group 2:port NO2 ～ C2,Group 3:port
NO3～C3） ).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.
RS485_A port. It is the cable A. You can connect to the
control devices such as speed dome PTZ.
RS485_B.It is the cable B. You can connect to the
control devices such as speed dome PTZ.
Input DC 12V/4A.
Power on/off button.
Bult-in Switch. Support PoE..
The 8 PoE series product supports total 130W.
The 16 PoE series product supports total 130W.
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