Industrial Grade NB-IoT DTU

Support CoAP Protocol,China Telecom Cloud,NB-IoT,

LPWAN,support external battery power supply

ZSN311 NB-IoT DTU is a external terminal based on the NB-IoT for wireless data transmission, small volume,support multiple interfaces;support the online,IDLE,PSM status, get the lower standby power consumption; Support UDP/CoAP network protocol, providing the fully transparent data transmission mode for users; Support customized heartbeat packet,registration packet,header; Support our self-built IoT Cloud without building server by users; Fully support industrial SCADA, users needn’t care of the complex network protocol, just by full transparent transmission serials you can achieve wireless data sending&recei, making your device connect into Internet without the limitation of time or place.

Using the Quectel Industrial Grade Communication Chip

MDN311-485 uses the Quectel Industrial Grade Communication Chip so that efficiently guarantee uninterrupted NB-IoT network communication. 

MDN311 Support CoAP protocol

NB-IoT DTU can choose Mind IoT Cloud/China Telecom IoT Cloud 

Mechanical Dimensions

Function Introduction

• Support automatic conversion in online, IDLE, and PSM modes to achieve extreme power consumption.
• Automatic analysis and processing of various situations, providing a stable and reliable NB-IoT network transparent transmission channel.
• Support UDP protocol, UDP-ZSD mode based on Mind encapsulation, China Telecom CoAP protocol.
• Using Mind’s SDK, the host computer development is simpler, and you can quickly establish your own center without TCP/IP programming.
• Support local and remote parameter configuration and remote firmware upgrade.
• Support custom registration packet, heartbeat packet, Custom header packet, which is convenient for users to confirm data.
• Full support for industrial configuration applications, OPC Server (customization required), and virtual serial ports.
• Full support for Mind IoT Cloud, users don’t need to build their own servers.
• Support mobile web real-time viewing of equipment operating status.
• Provide RS232, RS485 communication interface, the baud rate is optional from 1200bps to 38400bps, and the start bit/stop bit/parity is optional.
• The power supply and serial port adopt TVS anti-surge protection to ensure the stability and reliability of the equipment.
• Support free configuration of local script collection instructions to realize DTU actively collecting instrument data without host computer intervention.
• Support external battery power supply, long standby in low power consumption mode.

Technical Parameters

The device runs with low power consumption and can’t receive downlink data from the data center.

The DTU must actively upload data and enter the connection mode before the center can send data.

After no data communication, MDN311 automatically enters PSM mode to maintain low power consumption standby.

MDN311 supports script programming function. Users can customize script files through the graphical configuration software of the equipment, so that on-site applications do not require additional controllers, and do not need to rely on the data platform to issue collection instructions to achieve direct connection to the instrument. MDN311 Directly and actively collect data from the instrument and report it to the platform. 

Flexible Data Packet Format Customization

Custom registration packet: Users can freely configure the content of the data packet sent when MDN311 is first connected to the data center.

Custom heartbeat packet: Users can freely configure the content of the heartbeat packet sent by MDN311 to the data center.

Custom header packet: User can configure specific content before the data packet sent by the DTU to the data center in order to distinguish the data type or category.