NB-IoT Transparent Data Transmission Module

he NB-IoT Transparent Data Transmission Module is an industrial wireless communication module designed for small-data IoT applications that require long-distance transmission, low power consumption, and reliable connectivity. It allows terminal devices to send and receive data through operator NB-IoT base stations without the need for a central gateway.

With a low-power serial interface, direct server communication, parameter configuration, command delivery, and flexible protocol customization, this module is suitable for smart metering devices, remote monitoring terminals, and industrial IoT systems that need stable cellular data transmission in complex environments.

Key Features

• NB-IoT cellular communication for wide-area data transmission
• No central gateway required when NB-IoT base station coverage is available
• Suitable for decentralized, small-data IoT communication scenarios
• Supports multiple low-power operating modes
• Built-in high-performance 32-bit microcontroller
• Low-power serial port communication with 3V TTL level
• Semi-transparent transmission mode for direct server communication
• Supports parameter reading, parameter setting, data reporting, and command delivery through serial port
• Compatible with Nano SIM and eSIM
• Server-side protocol based on CoAP + JSON
• HAC communication protocol supported
• Custom protocol development available according to project requirements
• Designed for long-distance transmission and anti-interference performance

Applications

• Smart meter data transmission
• Water meter and gas meter communication terminals
• Remote utility monitoring devices
• Industrial IoT data collection
• Battery-powered wireless terminals
• NB-IoT AMR / AMI system integration
• Decentralized low-data-volume communication projects
• Sensor data reporting and remote device control

Compatible Device Types

This module can be integrated into IoT terminals and metering devices that require NB-IoT transparent data transmission, including:

• Smart water meters
• Smart gas meters
• Remote reading terminals
• Sensor terminals
• Low-power industrial monitoring devices
• Utility data collection devices
• Other NB-IoT-enabled IoT equipment

Compatibility should be confirmed according to the device interface, power design, protocol requirements, SIM type, server communication method, and deployment environment.