In general, the transmission method is used to read data from the remote serial port. IoT requires the use of wireless transmission modules to achieve the exact same length and content of data transmitted by the sender and receiver, which is equivalent to a data line. 4G industrial DTU is widely used in the IoT industry, such as vending machines, smart grid, intelligent transportation, industrial automation, intelligent building, environmental protection, meteorology, intelligent medical, agriculture, water conservancy, smart home, mobile POS terminal, finance, petroleum and petrochemical, PLC remote control, PLC remote control, PLC remote download.

1. Low power design.
Support multi-stage hibernation and wake-up mode, low power consumption, energy-saving and environmental protection, adapt to different environmental power supply methods, and reduce the user’s additional costs due to power supply.

2. Multiple interfaces.
We provide RS-232.RS-485 standard, provide 5 I/O interfaces, can realize 5 digital input and output; compatible with 2 pulse output. 2 analog input. 2 pulse counting functions.

3. Multiple downline trigger modes.
The system supports a variety of up and down trigger modes, including SMS, phone ringing, serial data trigger online mode, effectively reducing power consumption and avoiding traffic waste.

4. SMS backup.
In case of signal interruption in the online or central network, it can automatically switch to GSM SMS-like for data reception (data and SMS communication are backed up to each other).

5. Support for UDP protocols such as standard TCP/IP and MODBUS.
Embedded TCP/IP protocol and UDP protocol can integrate various networks and provide stable and reliable service for MODBUS protocol.

6. Timer switch on/off.
Built-in real time clock (RTC) with support for timer switching function

7. Support APN/VPDN networking.
Enhance the security and reliability of data transmission.

8. Support remote configuration upgrade.
Online support for remote configuration, online upgrades