Gosuncn RichLink LTE 450MHz DTU Obtains CE Certification
In July 2025, Gosuncn RichLink's LTE 450MHz DTU - D500 successfully obtained CE certification. This signifies that the product has acquired a "pass" to enter major 450MHz private network markets worldwide, including Europe, and is set to spark a new wave of applications in the smart meter industry.
The D500 is a powerful 4G communication unit specifically designed for the smart meter industry. It supports LTE Cat.M1/NB-IoT and global mainstream communication frequency bands, as well as the 450MHz private network frequency band, making it highly competitive in the overseas power communication market. The D500's exquisite and compact structural design allows it to be integrated and installed within electricity meters, easily enabling remote meter reading for power utilities and injecting new momentum into the intelligent development of the power industry.
The D500 supports LTE Cat.M1/NB-IoT cellular IoT technology, which can replace traditional power line communication or LoRa, finding widespread applications in smart meters, smart municipal services, and other fields. Currently, the D500 has completed joint debugging with mainstream 450MHz private network base station manufacturers such as ZTE and Nokia, with its compatibility fully verified. The D500 adopts a modular structural design, with independent communication units reserving SIM card and antenna interfaces for easy installation and operation. The D500 supports IoT protocols such as MQTT/SNMP, as well as power protocols like DLMS, allowing it to be easily integrated into industry applications.
The D500 is developed based on Gosuncn RichLink's GM196 4G module, and the GM196 series has shipped over ten million units, with its mature and stable performance fully verified by the market. Based on the Qualcomm MDM9205 platform, the D500 supports industrial-grade wide-temperature operation, capable of adapting to various complex industrial environments.
As global communication network technology continues to upgrade, the 450MHz private network market has transitioned from 2G to 4G, with broad development prospects. With advantages such as deep coverage, high security, standardization, and good network scalability, 450MHz private network communication technology is highly suitable for various M2M/IoT applications and continues to develop globally, with LTE 450MHz being continuously deployed and applied in markets including Europe, the Middle East, Latin America, Africa, and Southeast Asia. LTE in the 450MHz band is part of the 3GPP standard for 4G/LTE, and with its advanced features, flexibility, and seamless migration path to next-generation technologies, it has become the leading wireless technology for delivering voice and broadband data to densely populated urban areas as well as developed and remote regions. Its extensive coverage, excellent penetration, and low network costs also make it ideal for the communication needs of automation and AMI metering applications.
Since the 2G era, Gosuncn RichLink has continuously expanded in the cellular private network industry. Its private network modules and terminal products have been widely applied in smart power applications in high-end markets such as China, the Netherlands, and Germany, providing secure and reliable wireless communication connection services for power distribution network operations.
The D500's acquisition of CE certification is undoubtedly another significant achievement for Gosuncn RichLink in this field, which will further facilitate its expansion in the global 450MHz private network market and bring efficient and stable 4G private network communication solutions to the smart meter industry in more regions.
Gosuncn RichLink will continue to solidify its industry position as an IoT communication expert, continuously investing in product research and development and technological innovation to enhance product security capabilities and contribute to the healthy development of the global IoT.
Rich Link to the Colorful World!
About Gosuncn RichLink(www.rich-link.com):Gosuncn RichLink Technology Co., Ltd., is an IoT subsidiary of GOSUNCN Group (300098), focusing on cellular IoT technology, providing Telematics products and Cellular IoT terminals. Through 10 years of technological accumulation and business expansion, the company continues to provide innovative solutions and applications for global MNOs, TSPs, as well as customers in industries such as transportation, logistics, and smart metering.