User's Manual
34
No. Port Name Function
4 Audio output port
Outputs the analog audio signal to the devices such as the
sound box.
5 Audio input port
Receives the analog audio signal output from the devices such
as microphone.
6 Video input port Connect to analog camera to input video signal.
7
Alarm input port
1–16
●
Four groups of alarm output ports (Group 1: port 1 to port 4;
Group 2: port 5 to port 8; Group 3: port 9 to port 12; Group 4:
port 13 to port 16). These ports receive the signal from the
external alarm source. There are two types; NO (Normally
Open) and NC (Normally Closed).
●
When your alarm input device is using external power, make
sure the device and the DVR have the same ground.
Alarm output port
1–5 (NO1–
NO5;C1–C5; NC5)
●
Five 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). These ports
output alarm signal to the alarm device. Make sure power
supply to the external alarm device.
●
NO: Normally open alarm output port.
●
C: Alarm output public end.
●
NC: Normally closed alarm output port.
RS-485
communication
port
You can connect to the control devices such as speed dome PTZ.
RS-485_A port is connected by the cable A and RS-485_B is
connected to the cable B.
Four-wire full-
duplex RS-485
port (T+, T-, R+, R-)
Four-wire full-duplex 485 port. T+ and T- is the output wire; R+
and R- is the input wire.
Control power
output (CTRL 12V)
Controls 12 VDC power output. It is to control the on-off alarm
relay output.
12V power output
port
Provides power to external devices such as camera and alarm
device. Note the supplying power shall be below 1A.
Ground.
8 Network port Connects to Ethernet port.
9
RS-232 debug
COM
It is for general COM debug to configure IP address or transfer
transparent COM data.
10 USB port
Connects to the external devices such as keyboard, mouse, and
USB storage device.
11 VGA video output
Outputs analog video signal. It can connect to the monitor to
view analog video.
12 eSATA port
External SATA port which connects to the device with SATA port.
Perform the jumper configuration when connecting HDD.
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