Description

Atom DTU NBIoT2 v1.1 is a programmable NB-IoT wireless Data Transmission Unit (DTU) designed for global Cat-NB frequency bands. Upgraded from the previous generation, it mainly adds an IO expansion chip to enable control of the communication module power enable and software reset, which helps reduce power consumption and ensures that the SIM module can be reset without power cycling when abnormal conditions occur. At the same time, an ADC monitoring circuit has been added, supporting real-time acquisition of the input power voltage from the HT3.96-4P interface to enable power status monitoring. This unit integrates the SIM7028 communication module and uses UART communication (controlled via AT command set). It features an SMA external antenna interface, providing good communication quality and signal stability. The SIM7028 module supports multiple Cat-NB frequency bands and can be used worldwide. Compared with conventional DTUs that only support data transparent transmission, the Atom DTU series adopts a more open architecture design. Multiple interfaces (RS485, I2C / custom Grove interface) are reserved for user expansion, facilitating rapid connection of sensors and actuators. The built-in DIN rail mounting structure allows installation in various industrial control environments, making it suitable for low-latency, low-throughput scenarios such as remote control, asset tracking, remote monitoring, telemedicine, and shared bicycles.

Features

• Global version / multi-band support, suitable for worldwide use
• SIM7028 module, AT command control
• Micro-SIM IoT card
• IO expansion chip for communication module power enable and software reset control
• ADC monitoring circuit supporting power status monitoring
• External SMA antenna interface
• Reserved RS485, I2C / custom Grove interfaces
• Data rate (kbps): 127 (DL) / 159 (UL)
• Supports multiple network protocols such as MQTT and HTTP
• Multiple power supply methods

Includes

• 1 x Atom DTU NBIoT2 v1.1
• 1 x 850 ~ 1900 MHz SMA rubber antenna
• 1 x Hex Key L-Shape 1.5mm (For M2 Screw)
• 1 x M2 * 16mm cap head machine screw
• 1 x HT3.96-4P Terminal
• 1 x I/O Sticker

Applications

• Asset tracking
• Remote monitoring / control
• Shared bicycles

Specifications

Product Comparison

Learn and Documents

DOCUMENTS