21 720p (s2) compact 1u series, 720p (s 2) compact 1u series – AGI Security SYS-HC0451S2 User Manual
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Figure 2-47
Please refer to the following sheet for detailed information.
SN
Icon
Name
Note
1
Power on-off button Power on/off button.
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
8
Power input port
Input 12V DC.
9
USB2.0 port
Connect to USB storage device,
mouse, burning DVD-ROM and etc.
10
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.
11
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.
12
Network port
100M Ethernet port
2.2.21 720P (S2) Compact 1U Series
The 4-channel series rear panel is shown as below. See Figure 2-48.