Dahua NVR2104-I2, User Manual

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No. Port Name Function
RS-485 port (A, B)
●
RS485_A port. Control cable A of the 485 device. It connects
external devices such as speed dome and PTZ.
●
RS485_B port. Control cable B of the 485 device. It connects
external devices such as speed dome and PTZ.
CTRL
Controllable 12 V power output. It is to control the on-
off alarm relay output. It can be used to control the
device alarm output. At the same time, it can also be
used as the power input source of some devices such
as alarm detector.
The
two
ports
serve as
another
group
of
alarm
output
ports.
+12 V power output port. It can provide power to some
peripheral devices such as camera and alarm device.
Make sure the power supply of peripheral device shall
be below 1 A.
8
MIC IN
Bidirectional talk input port. It is to receive analog audio signal
from devices such as microphone, sound pickup.
MIC OUT
Audio output port. It is to output analog audio signal to devices
such as sound box.
●
Bidirectional talk output.
●
Audio output on 1-window video monitor.
●
Audio output on 1-window video playback.
9 USB port
USB 3.0 port. Connect to devices such as mouse, USB storage
device and USB burner.
10 Network port
10/100/1000 Mbps self-adaptive Ethernet port. Connect to the
network cable.
11 Power input port Input power of 100-240 V and 50-60 Hz.
12 GND.
2.2.26 NVR52-16P-I/NVR52-16P-I/L/NVR52-8P-I/NVR52-8P-I/L/
NVR42-16P-I Series
These figures are for reference only.
The NVR52-16P-I/NVR52-16P-I/L series rear panel is shown as below.
User's Manual
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