D82 Series is a rugged, dual-serial-port data terminal unit (DTU) designed for serial-to-IP data conversion. Equipped with two RS232/RS-485/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 4G LTE, 3G, or GPRS networks.

This robust and reliable device enables simple, rapid integration of cellular connectivity into M2M (Machine-to-Machine) applications, making it ideal for industrial automation and IoT deployments.

Basic Features

• Optimized EMC design

• Two serial (RS232/RS485) port

• Standard PPP, TCP/IP and UDP/IP protocol

• Industrial pluggable terminal block

• Industrial FDD-LTE / TDD-LTE 4G cellular module

• Support APN and VPDN wireless private network

• Support short message service (SMS)

• Support transparent data transmission

• Support data service center with dynamic IP address

• Support LED status indication

• Wide range voltage input

• Smart power management

• External power on/off control

• Reliable, flexible and easy to deploy

• Managable by WLINK M2M Platform

Optional Features

Multiple operation mode

• Always online: automatically attaches 4G Celullar when powered on

• automatically redials when off line and keep line alive

• Offline when idle and trigged online by user data, ring or SMS

• GPRS channel and SMS mutual backup

• Online/offline control by commands via user equipment

• Data loop test

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