User's Manual
53
No. Port Name Function
Alarm output
port (NO1-
NO2, C1-C2)
●
Two groups of alarm output ports
(Group 1: NO1-C1, Group 2: NO2-C2).
Output alarm signal to the external
alarm device. Make sure power supply
is available for the external alarm
device.
●
NO: Normal open alarm output port.
●
C: Alarm output public end.
GND. Alarm input ground port.
RS485 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.
Alarm input/output
of NVR4216-16P-I
Alarm input
port (1-4)
●
They receive signals from external
alarm source. Alarm input includes two
types; NO (normal open) and NC
(normal close).
●
When your alarm input device is using
external power, make sure the device
and the NVR have the same GND.
Alarm output
port (NO1, C1)
●
One group of alarm output ports
(Group 1: NO1-C1). Output alarm signal
to the external alarm device. Make sure
power supply is available for the
external alarm device.
●
NO: Normal open alarm output port.
●
C: Alarm output public end.
GND. Alarm input ground port.
CTRL
Controllable 12V 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.
P
+12V 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 1A.
5 HDMI port
High definition audio and video signal output port. It
transmits uncompressed high definition video and multiple-
channel audio data to displays with HDMI port.
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