The D80 Series is a rugged, industrial-grade serial-to-IP 3G modem (also known as a 3G 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  3G or 2G mobile networks.

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 3G cellular module

• 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 3G 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

Product Structure