Dahua TPC-BF2120-1F4, Быстрый старт, Страница: 13 / 24

3
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.
SN Port Port name Connector Function description
1 AUDIO OUT
Audio input
output
RCA
3.5mm Jack port, output audio signal to
earphone and other devices.
2 AUDIO IN
3.5mm Jack port, input audio signal, receive
analog audio signal from sound pick-up and
so on.
3 LAN Network port Ethernet port Connect to standard Ethernet cable.
4
ALARM_NO
Alarm output
Various
alarm
apparatuses,
such
as
smoke
detector and
siren etc.
Alarm output port, output alarm signal to
alarm device.
ALARM_COM
ALARM_IN1
Alarm input
Alarm input port, receive on-off signal from
external alarm source.
ALARM_IN2
ALARM_GND Alarm GND Alarm common GND.
5 POWER
Power input
port
-
Power port, input DC 12V.
Note
Actual use shall be in accordance with
device label instruction. Otherwise, it may
cause damage to the device
6
RS485
RS485 port - It is connected to external RS485 device.