Dahua IPC-HUM8231-L3 Quick Start Manual page 8

No. Port Port name
Audio output
AUDIO
1
OUT port
Audio input
2 AUDIO IN
port
SD
Micro SD
3
Card
Sensor port
4 SENSOR
Network port
5 LAN
Power input
6 DC12V
port
7 I/O I/O port
Reset
Reset
8
Button
Port name
I/O port
connector Function description
3.5mm
TRS
3.5mm
TRS
Micro SD
Card slot
Sensor
board
Ethernet
port
-
-
-
Table 1-1
Cable port name
G
TX
RX
IN1
IN2
G
Output audio signal to the speakers and other
devices.
Input audio signal, receive analog audio signal
from pickup and other devices.
Micro SD card storage.
Connect front end sensor board, acquire
image data.
Connect to standard Ethernet cable, provide
PoE power supply function.
Input DC12V; please be sure to power the
device according to the instruction of device
label.
Caution
It may cause damage to the device if it fails to
power the device according to the instruction
of device label.
Alarm input and output; refer to Table 1-2 for
more details.
It is used to restore factory default settings for
the device.
Note
Continuously press the button for over 5
seconds in the situation where the device is
working normally, then the system
configuration info can be restored to factory
default settings.
Function description
Ground terminal
connecting to RS232
serial port.
RS232 sending port.
RS232 receiving port.
Alarm input port 1, receive on-off signal from
external alarm source.
Alarm input port 2, receive on-off signal from
external alarm source (reserved).
Alarm GND
Note
Some devices support
RS485 port.
14