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Harsh environments SS304 Explosion-proof 5G DTU data transfer unit

Harsh environments SS304 Explosion-proof 5G DTU data transfer unit

Category: Explosion Proof DTU

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Codexun MX842-1D explosion-proof 5G DTU is a seven-mode full Netcom industrial-grade wireless data transmission terminal, designed to fully meet the needs of industrial-grade standards and industrial users, using high-performance industrial-grade 32- bit communication processors , software multi-level detection And hardware multiple protection mechanisms to improve device stability. Support mobile, China Unicom, China Telecom 4G/3G/2G network, flexible interface, support standard RS232, RS485, TTL level can be customized.

This series of products can help users quickly access high-speed Internet and realize safe and reliable data transmission. It is widely used in oil field monitoring, chemical industry, combustible gas warehouse, explosion-proof workshop, energy coal mine, logistics storage and other industries.


  • With 1 RS232 and 1 RS485 interface, 3 I/O interfaces and 2 ADCs are reserved
  • Support transparent data transmission, embedded standard TCP/IP protocol stack
  • Support multi-center (up to 5) and TCP server functions
  • Support DDNS, you can access the center according to the domain name and IP address
  • Support TCP heartbeat link detection, keep the device always online
  • Support APN/VPDN
  • Support SMS backup function, when TCP/UDP is disconnected, you can send data by SMS
  • Support SMS, phone ringing, serial port data and other online and offline trigger modes
  • Support equipment to run software and hardware self-test technology, and run fault self-repair


Industrial grade design:


Anti-lost data:

▪ Selection of all components, 100% industrial standard

▪ Satisfies industrial applications

▪ Watchdog detection mechanism

▪ TCP heartbeat link detection

▪ Ensure devices are always online

▪ Data reissue mechanism

▪ Disconnected reconnection, data reissue

▪ Ensure data is not lost

Low Power Design:

Multi-center transmission:

Remote management:

▪ Ultra-low power consumption design

▪ Communication state power consumption <1W

▪ Supports up to 5 centers

▪ Multi-center synchronous data transmission

▪ Visual display of multi-level data

▪ Modify configuration remotely

▪ Remote troubleshooting

▪ Reboot device remotely

Remote upgrade:


Simple and easy to use:

▪ Remote management platform

▪ Firmware remote upgrade

▪ Passed various indicators of EMC

▪ Suitable for various industrial occasions

▪ Simple to use and easy to install

▪ Powerful configuration tools

Save manpower and material resources

Suitable for high-power equipment occasions

Integrating upgrade and debugging

Wireless network parameters

product type

wireless parameters



Support TD-LTE 2600/2300MHz

Support FDD-LTE 2600/2100/1800/900/800MHz


Mobile 4G/3G/2G

Unicom 4G/3G/2G

Telecom 4G/3G/2G

Product interface



Power interface:

standard power supply

DC 12V/0.5A

Power supply range

DC 5~35V

Built-in power reverse phase protection and overvoltage protection.


serial port:

The serial port adopts industrial terminal interface, suitable for industrial applications, RS232 or RS485 interface

Built-in 15KV ESD protection, TTL level can be customized


Reserve 2 analog input interfaces (10-bit AD, support 4-20mA current signal input, optional 0-5V voltage signal input)

IO port:

3 channels of GPIO are reserved, which can be configured as input and output, and the communication level is 3.3V

Serial parameters:

serial speed


data bit

5, 6, 7, 8 bits

stop bit

1, 1.5, 2 digits


No parity, even parity, odd parity, SPACE and MARK parity


indicator light

With system, power, communication and online indicators

Antenna interface

External fiberglass antenna

SIM/UIM card interface

Standard drawer user card interface, support 1.8V/3V SIM/UIM card, built-in 15KV ESD protection

Product features



Environmental conditions:

Working temperature range: -30℃~70℃

Storage temperature range: -40~+80ºC

Relative humidity range: 95%

Atmospheric pressure: 86~106KPa

Working power consumption:

communication status


Note: 12V power supply, current <90mA 5V power supply, current <190mA

standby mode


Note: 12V power supply, current <24mA 5V power supply, current <50mA

Anti-interference ability:

Anti-interference type


Voltage/Current Waveform


Power frequency magnetic field


continuous sine wave


damped oscillating magnetic field


continuous sine wave


pulsed magnetic field




radiated electromagnetic field


80MHz~1000MHz continuous wave


Equipment suitable for installation in typical industrial environments: chemical plants, gas warehouses, oil exploration platforms, etc.

Protection class:

Protection class: ExdⅡBT6 Gb/Ex tD A21 IP68 T80℃

In environments with explosive gas or dust or other relatively safe places, typical hazard sources are: propylene (methyl acetylene), cyclopropane, acrylonitrile, ether (alcohol), coke oven gas, wood powder, metal powder, etc.


The mean time between failures (MTBF) is not less than 100000h

Ultra-low power consumption design, including sleep mode, timing online and offline mode

All grades of EMC index up to level 3

Using NTP technology, built-in RTC

SIM/UIM card interface built-in 15KV ESD protection

Physical properties:

Internal size: 300mm*204mm*87mm

Weight: about 10.5KG

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