User Guide
IoT into the Wild
9
No.
Pin
Description
1
12V
External 12V input voltage. The Data Logger can be
powered by an external 12V DC power supply.
When using 12V power supply, the battery will serve as
backup power supply.
2
5V
5V output voltage, providing 5V voltage to the sensor.
3
3V
3V output voltage, providing 3V voltage to the sensor.
4
IO
Acquisition level or pulse input
5
V1
The voltage input of 0 to 10V is collected
6
V2
The voltage input of 0 to 10V is collected
7
A
RS485 A/+
8
B
RS485 B/-
9
I1
Collect the current input from 4 to 20mA
10
I2
Collect the current input from 4 to 20mA
11
GND
Ground pin
12
GND
Ground pin
4.2.2 Power supply options of sensor
Data Logger supports two power supply modes:
Mode
Description
Built-in Battery
The Data Logger and sensors are powered by batteries. In this
case, the datalogger can be connected to a 5V or 3V sensors.
External 12V DC
Supply power to Data Logger and sensor through external 12V
power supply. When the external 12V is disconnected, the system
switches to battery power.
When using external 12V power supply, use it together with the
junction box to ensure the waterproof performance of the device.