In the rapidly evolving landscape of industrial Internet of Things (IoT), efficient and reliable data transmission is paramount. The SeDTU300 series offers a range of industrial-grade wireless data terminal products, including variants for NB-IoT, standard serial ports, and CAT4 connectivity. Today, we'll focus on the NB-IoT version of the DTU300, a cutting-edge NB-IoT modem designed to provide seamless wireless data transmission for remote industrial applications.

4G LTE modem-dtu300

Product Overview

The DTU300 NB-IoT modem is an industrial-grade wireless data terminal that utilizes NB-IoT networks as the bearer network. It creates a reliable TCP/IP-based wireless data channel, enabling efficient communication between remote serial port devices and central control systems. As a versatile NB-IoT modem, the DTU300 is equipped with multiple interfaces and supports various configuration methods, making it an ideal choice for industrial IoT deployments, especially in scenarios where low power consumption and wide coverage are crucial.

Key Features

Advanced NB-IoT Connectivity As a state-of-the-art NB-IoT modem, the DTU300 leverages NB-IoT networks, ensuring wide coverage and reliable connectivity even in challenging industrial environments with deep indoor penetration requirements.
Versatile Interfaces The DTU300 NB-IoT modem comes equipped with 1 RS232 port and 1 RS485 port, allowing direct connection to a variety of serial port devices. This feature makes the NB-IoT modem highly adaptable to different industrial setups.
Data Storage and GPS Functionality With optional local data storage and GPS positioning capabilities, this NB-IoT modem can store critical data locally and provide accurate location information when needed, enhancing its utility in remote monitoring applications.
Flexible I/O Options The DTU300 NB-IoT modem supports 2 IO ports for digital output and 2 analog input channels (optional) for current or voltage input acquisition, enhancing its versatility for various industrial applications.
Multiple Configuration Methods This NB-IoT modem supports local serial port configuration, AT command configuration, and TCP/IP remote configuration, simplifying setup and maintenance processes.

Technical Specifications

4G LTE modem-dtu300

Hardware Performance:
FLASH: 8MB SPI FLASH
SRAM: 256KB
Network Support: Industrial-grade NB-IoT module
RTC: Time synchronization using NTP technology, with built-in RTC
Interfaces:
Serial Ports: 1 x RS232 and 1 x RS485 interface, with built-in 15KV ESD protection
Serial Port Parameters:
Data bits: 5, 6, 7, 8 bits
Stop bits: 1, 1.5, 2 bits
Parity: None, even, odd, SPACE, and MARK parity
Baud rate: 1200~230400bits/s
Indicators: 1 PWR light, 1 ACT light, 1 Online light
SIM Card Interface: 1 drawer-type slot, supports 1.8V/3V SIM/UIM cards
Antenna Interface: 1 for NB-IoT antenna, 1 for GPS antenna (optional), 50 ohms impedance, SMA female inner pin interface

Power Characteristics:

Power Supply: External power adapter (9V 1A)
Operating Voltage: Wide power input DC 5~36V (expandable to 5-60V)
Operating Conditions:
Temperature: -35~+75°C (-31~+167°F)
Storage Temperature: -40~+85°C (-40~+185°F)
Humidity: 5%~95% (non-condensing)
Ventilation: Natural heat dissipation, no noise

4G LTE modem-dtu300

Physical Features:

Chassis: Full metal
Dimensions: 1195926mm (LWH, excluding antenna mounting components)
Weight: Net 0.35KG, Gross 0.68KG (with accessories and packaging)
Device Safety and Reliability:
Protection: Power reverse protection, overvoltage protection, overcurrent protection
Interface Protection: RS232/RS485 (15KV ESD), SIM/UIM card (15KV ESD)
Protection Level: IP30
Certification: Complies with CCC, RoHS
MTBF: ≥ 100,000 hours
Product Advantages
Low Power Consumption As an NB-IoT modem, the DTU300 is designed for ultra-low power consumption, making it ideal for battery-operated devices and remote locations where power is limited.
Wide Coverage The NB-IoT technology used in the DTU300 provides excellent coverage, even in hard-to-reach areas like basements or rural locations.

Robust Connectivity Leveraging NB-IoT networks, the DTU300 ensures reliable data transmission even in challenging industrial environments with high interference or signal obstruction.
Versatile Application With its multiple interfaces and I/O options, this NB-IoT modem can adapt to various industrial scenarios, from simple data collection to complex control systems.
Enhanced Data Management The optional local storage feature allows the DTU300 NB-IoT modem to store critical data locally, ensuring data integrity even during network interruptions.
Easy Configuration and Management Multiple configuration methods, including local and remote options, make the DTU300 NB-IoT modem easy to set up and maintain, reducing operational costs.

Real-World Application Scenario: Smart Agriculture

Let's consider a smart agriculture system deployed across a large rural area. The farm management needs to monitor soil moisture, temperature, and other environmental factors across thousands of acres to optimize irrigation and crop management.
In this scenario, the DTU300 NB-IoT modem proves to be an ideal solution. Each monitoring station in the field is equipped with a DTU300, which collects data from various sensors via its RS485 interface. The NB-IoT modem then transmits this data to the central management system using the NB-IoT network.

The advantages of using the DTU300 NB-IoT modem in this application are numerous:
Wide Coverage: The NB-IoT technology allows for excellent coverage across vast rural areas where traditional cellular signals might be weak.
Low Power Consumption: The NB-IoT modem's ultra-low power consumption enables long-term operation on battery power, reducing the need for frequent maintenance visits to remote locations.
Data Integrity: In case of network issues, the local storage option ensures that no crucial environmental data is lost.
Easy Deployment: The plug-and-play nature of the DTU300 NB-IoT modem simplifies installation, allowing for rapid deployment across large agricultural areas.
Remote Management: The farm management can remotely configure and update the DTU300 units, further reducing maintenance costs and improving system flexibility.
Scalability: The robust design of the DTU300 NB-IoT modem allows for easy scaling of the system as the farm expands or monitoring needs change.
This real-world application demonstrates how the DTU300 NB-IoT modem can revolutionize industrial IoT deployments in agriculture, providing reliable, efficient, and cost-effective data transmission solutions even in challenging rural environments.

The DTU300 NB-IoT modem represents a significant advancement in industrial IoT technology, particularly for applications requiring low power consumption and wide coverage. Its robust design, versatile interfaces, and advanced NB-IoT connectivity make it an ideal choice for a wide range of industrial applications, especially in remote or challenging environments. Whether you're implementing a smart agriculture system, managing utilities in hard-to-reach areas, or monitoring remote industrial equipment, the DTU300 NB-IoT modem provides the connectivity and functionality you need to drive your IoT initiatives forward, all while minimizing power consumption and maximizing coverage.