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2 Device Structure
2.1 Device External Cable
Note
The following figure is for reference only, which is only used to know the function of cable ports.
The cable structure may be different according to different devices, please refer to the actual device for
more details.
Please refer to Table 2-1 for more details about the external cable function.
SN
Port
1
AUDIO OUT
2
AUDIO IN
3
LAN
ALARM_NO
ALARM_COM
ALARM_IN1
4
ALARM_IN2
ALARM_GND
5
POWER
RS485
6
Figure 2-1
Port name
Connector
Audio
input
RCA
output
Network port
Ethernet port Connect to standard Ethernet cable.
Various
Alarm output
alarm
apparatuses,
Alarm input
such
smoke
detector and
Alarm GND
siren etc.
Power
input
-
port
RS485 port
-
Function description
3.5mm Jack port, output audio signal to
earphone and other devices.
3.5mm Jack port, input audio signal, receive
analog audio signal from sound pick-up and
so on.
Alarm output port, output alarm signal to
alarm device.
Alarm input port, receive on-off signal from
as
external alarm source.
Alarm common GND.
Power port, input DC 12V.
Note
Actual use shall be in accordance with
device label instruction. Otherwise, it may
cause damage to the device
It is connected to external RS485 device.
3
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