Dahua NVR2104-I2, User Manual

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Icon Name Function
●
When your alarm input device is using
external power, please make sure the device
and the NVR have the same ground.
Ground Alarm input ground end.
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
A
RS-485 communication port
RS485_A port. It is the cable A. You can connect
to the control devices such as speed dome PTZ.
B
RS485_B. It is the cable B. You can connect to
the control devices such as speed dome PTZ.
CTRL (CTRL 12 V) —
Controller 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 the alarm detector.
The two
ports
serve as
another
group of
alarm
output
ports.
P (+12 V) —
+12 V power output port. It can
provide the power to some
peripheral devices such as the
camera or the alarm device. Please
note the supplying power shall be
below 1 A.
RS-232 RS-232 debug COM
It is for general COM debug to configure IP
address or transfer transparent COM data.
VGA VGA video output port
VGA video output port. Output analog video
signal. It can connect to the monitor to view
analog video.
PoE PORTS —
Built-in Switch. Support PoE or ePoE function.
For ePoE series product, port 1 to port 8 are the
ePoE ports. ePoE port supports 300
meters@100Mbps, 800 meters@10Mbps. Port 9
to port 16 are general PoE ports.
The 16 PoE series supports total 150
W.
User's Manual
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