Dahua NVR5208-EI

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-o 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.
2.2.27 NVR52-16P-I/NVR52-16P-I/L/NVR52-8P-I/NVR52-8P-
I/L/NVR42-16P-I Series
These gures 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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