The D80 Series is a rugged, industrial-grade serial-to-IP cellular modem (also known as 2G DTU), specifically designed for M2M applications. Equipped with RS232/RS-485/RS-422/TTL interfaces and supporting PPP, TCP/IP, and DDP protocols, it seamlessly converts serial data into IP data and transmits it to your data center through a fully transparent channel over 2G GSM GPRS networks for small data application.

This robust modem enables simple, rapid integration of cellular connectivity into M2M systems, making it ideal for industrial automation, remote monitoring, and IoT deployments.

The D80 DTU features a robust, reliable, and compact metal casing designed for long-life operation in demanding environments. Its onboard standard design ensures easy deployment and maintenance, making it a versatile solution for a wide range of applications.

Globally proven, the D80 is widely used in industries such as: Power SCADA systems, Oil fields and coal mines, Weather forecasting and environmental monitoring, Water conservancy, heating, and natural gas operations, Petroleum and energy sectors

Basic Features 

• Optimized EMC design for industrial environments

• Industrial-grade 2G cellular module for small date application

• Supports APN and VPDN wireless private networks

• Transparent data transmission supporting dynamic IP addresses

• Standard protocols: PPP, TCP/IP, and UDP/IP

• Wide-range voltage input with smart power management

• External power on/off control for flexible operation

• LED status indicators for real-time monitoring

• Reliable, flexible, and easy to deploy in diverse environments

Optional Features

• Multiple operation model

  Always Online:

  Automatically connects to 2G GSM GPRS cellular network at startup

  Auto-reconnects when offline to maintain persistent connectivity

  Idle Offline:  Triggers online mode via user data, incoming call, or SMS

  Command Control: Online/offline switching via user equipment commands

  GPRS/SMS Backup:  Mutual backup between GPRS and SMS channels

• Multiple data service centers communications
  

  Supports up to 4 data service centers communications

  Supports main/backup data service centers communications

  Supports customized setting for each data service center

• Flexible and utilitarian data communications

  Supports TCP/IP, UDP/IP, DDPTM, SMS and AT

  Self-defines transparent or protocol communications

  Self-defines customized data frame separator

  Self-defines reconnecting interval

  Self-defines heart-beat data frame

• Parameters configuration and remote management

  Built-in parameters configuration menu

  Configuration tool based on PC

  Remote parameters configuration via data service center

  Remote parameters configuration by SMS

  Parameters configuration via AT+ commands

  
  

  
  

Typical Application