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SKU: USR-MB706 Category:


USR-MB706 Introduction of LTE Cat M serial modem

USR-MB706 is a LTE Cat M serial modem which supports GNSS. It supports LTE Cat M1, NB-IoT, and EDGE/GPRS compatible, covers global frequency bands. It has perfect software function, supports transparent transmission, HTTPD Client, SMS mode and AT command configuration. Also, it is simple to configure, has high reliability and built-in hardware watchdog, supports FOTA upgrading. USR-MB706 adopts terminal interface design, RS232/RS485 interface easy to connect to serial port sensors, PLC, IPC, and controller, meets the needs of different application scenarios such as meter reading, security monitoring, vehicle positioning, alarms, asset tracking, etc.

Features of USR-MB706

  • 9~36V wide power supply range.
  • LTE Cat M1,Cat NB2,EGPRS.
  • Transparent transmission.
  • SMS, NET, Serial AT command configuration.
  • FTP Upgrade and FOTA self upgrade.

Basic Function

USR-MB706 quickly delivers the bi-directional transparent transmission of data at serial ports and networks.

Modbus RTU to TCP – Modbus RTU/Modbus TCP protocol conversion for industrial SCADA systems and field devices.

Supports GNSS and positioning information reporting – USR-MB706 supports multiple positioning modes, including GPS, beidou, glonass and galileo, which can be configured by AT commands and output the positioning format of international standards.

Registration Package plus Heartbeat Package – The registration packet is sent to the server to identify the device. The heartbeat packet is used to judge the active state of the device when sent to the server, and actively collect data when sent to the serial terminal. The contents of registration package and heartbeat package, heartbeat interval can be modified by AT command.

Parameter Configuration – Support the parameter configuration of serial, network and SMT AT commands, and provide the configuration tool for the PC.

Remote FOTA Upgrade – With the remote management platform, it can realize the automatic firmware upgrade. Have a small upgrade package of differential algorithm, and this can save upgrade traffic and time.


Vehicle Monitoring – MB706 can upload the vehicle information to the cloud, the cloud monitoring personnel can monitor the vehicle status in real time to achieve intelligent process management.

Meter reading – Smart meters are crucial components of the Smart Grid and enable two-way communication by interfacing remotely with the utility and deliver meter readings automatically. By gathering and forwarding data, smart meters allow consumers to make informed decisions to alter usage and
optimize electricity consumption. It also helps utilities to better monitor the electric system and demand response to reduce peak loads, prevention of outages. Through the connection with MB706, all the serial data will be sent to SCADA software via LTE CAT M1 and NB-IoT network.



Product Parameters
Frequency Bands Cat M1 B1/2/3/4/5/8/12/13/18/19/20/25/26/27/28/66/85
Cat NB2 B1/2/3/4/5/8/12/13/18/19/20/25/28/66/71/85
GSM/EDGE 850/900/1800/1900 MHz
Transmission Speed Cat M1 588Kbps DL/1119Kbps UL
Cat NB2 127Kbps DL/158.5Kbps UL
EDGE 296Kbps DL/236.8Kbps UL
GPRS 107Kbps DL/85.6Kbps UL
Software DFOTA/VoLTE(Cat M1 only)/ FTP
SMS: PDU modes
Transparent (TCP Client/Server, UDP
Client/Server), COAP, DNS, modbus RTU/TCP
HTTP/SMS transparent transmission
CMD mode, AT command operation
Cell ID Positioning ,GNSS
Physical Interfaces Serial RS485 (2PIN)/RS232(3PIN)
USB 2.0
Antenna SMA * 2
Reload Button
Installation Panel mounting
Hardware Characteristics Power Supply 9~36V
Power Consumption <1W (43mA@12VDC)
Dimensions 105mm × 94mm × 28mm
Operating temperature -35℃~+75℃
Expansion temperature -40℃~+85℃
Storage temperature -40℃~+85℃
Relative Humidity 5%~95%(non-condensing)
Serial Cache 5 packets, maximum 1000 byte per packet
Connector Terminal block, female socket
Baudrate 2400~230400bps
Data 8
Stop 1/2