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.
Figure 2-1
Please refer to Table 2-1 for more details about the external cable function.
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.
Connect to standard Ethernet cable.
Various
alarm
apparatuses,
such as
smoke
detector and
siren etc.
Alarm output port, output alarm signal to
alarm device.
Alarm input port, receive on-off signal from
external alarm source.
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.
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