Dahua JRC-27F, User Manual

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User's Manual
32
Name Function
1–16
Alarm input
port 1–16
●
There are four groups. The first group is from port 1 to
port 4, the second group is from port 5 to port 8, the
third group is from 9 to 12, and the fourth group is from
13 to 16. 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.
GND Alarm input ground port.
NO1–NO3
Alarm output
port 1–3
●
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.
C1–C3
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.
Network port
One 10/100/1000 Mbps self-adaptive Ethernet port.
Connect to the network cable.
eSATA eSATA port
External SATA port. It can connect to the device of the SATA
port. Please jump the HDD when there is peripheral
connected HDD.
USB port
USB port. Connect to mouse, USB storage device, USB
burner and more.
RS-232
RS-232 debug
COM
It is for general COM debug to configure IP address or
transfer transparent COM data.
HDMI
High Definition
Media Interface
High definition audio and video signal output port. It
transmits uncompressed high definition video and
multiple-channel data to the HDMI port of the display
device. HDMI version is 1.4.