AGI Security SYS-HC0451S2 - Manual (Page 68)

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2
Alarm input/Alarm
output
Input/output alarm signal.
3 VGA VGA video output
port VGA video output port. Output
analog video signal. Can connect to
the monitor to view ananlog video
output.
4 AUDIO IN Audio input port Connect to audio input device such
as speaker.
5 AUDIO OUT Audio output port Connect to video output device such
as sound box.
6 VIDEO IN Video input port Connect to analog camera, video
input signal.
7 GND Ground end 0
8 Power input port Input 12V DC.
9 A RS485（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.
10 USB2.0 port Connect to USB storage device,
mouse, burning DVD-ROM and etc.
11 Network port
100M Ethernet port
12 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.
2.2.17 General 720P (S2) Mini 1U Series
The 4-channel series rear panel is shown as below. See Figure 2-38.