Dahua TPC-BF2120-1F4

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.