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Home / Products / LTE Cat 4 modems / Cellular Modem Routers | Industrial Cellular Modems
Home / Products/ LTE Cat 4 modems / Cellular Modem Routers | Industrial Cellular Modems
Cellular Modem Routers
  • Cellular Modem Routers
  • Cellular Modem Routers
  • Industrial Cellular Modems
  • Industrial Modems

USR-G781

USR-G781

Cellular Modem Routers | Industrial Cellular Modems

Cellular Modem Routers | Industrial Cellular Modems


USR-G781 is an industrial cellular modem router, which provides a serial to cellular networking solution. Provide Serial and Ethernet Connectivity to PLC, RTU, Data Loggers,Wireless SCADA applications and IP Cameras at Remote Sites.
USR-G781-A, American version
USR-G781-E, Europe version
USR-G781-AU, Australia version.

● Supports 2 10/100Base-T(X) self-adaptive Ethernet interface and 1RS485 port
● Hardware watchdog ,rugged metal casing and wall mounting
● 2 RJ45 port, one can be WAN or LAN port and another one can be LAN port
● Support VPN(PPTP) client
● Support static routing

Industrial 4G LTE Router
With Serial Port

Serial Modem

G781 integrates with routing and serial modem, which can easily achieve the
bi-directional data transparent transmission between RS485/RS232 devices
and 4G network, supports connecting to various cloud platforms.
It also supports user-defined register & heartbeat packets to ensure the
device online

Transparent Transmission

Provide data two-way transparent transmission between field serial devices and the
central control server Support 4 Socket connections, support TCP Client and UDP
Support custom heartbeat package and registration package
Private protocols can be customized

HTTPD Client

submit serial data to the designated server by HTTP (GET/POST) method

Modbus RTU to TCP

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

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.

Industrial Design, Fit into Any Harsh Environment

ESD, Surge, EFT protection, wide input voltage.Built-in hardware watchdog,
7*24 hours stable operation in harsh environment or industrial site with strong
electromagnetic interference.
All components are selected according to industrial standards,Thicker and durable
metal shell, ground screw protection.

Data Security, Multiple VPN

Supports mainstream VPN protocols, including PPTP, L2TP, IPSec, OpenVPN,
and GRE. Multiple safe encryption methods make data safe
transmission up to financial grade.

Flexible networking

Video Surveillance

Through 4G networking, it provides high-speed network access for cameras,
and other devices that require large data transmission,
so that staff can remotely monitor the details of the field.

Electric Fire Monitor System

Based on modern IT like the IOT sensor, cloud computing and big data,
the electrical safety supervision service system consists of intelligent
sensor terminal, wireless transmission devices and supervision platform.
The intelligent sensor terminal monitors the electric status(wire temperature,
currency, after-current and fault arc) and transmits the data to the
supervision platform through wireless communication.

Parameter Item Index
SIM card and antenna SIM/USIM card Six pin SIM card interface, 3V/1.8V SIM card
Antenna SMA interface, 5 dBi antenna
Hardware Parameters Wired Internet interface WAN*1 and LAN*1
Data Interface RS232:300bps - 460800bps
RS485:300bps - 460800bps
Indicator LED LINKA, LINKB, TXD, RXD, POWER, NET, WORK, SIM
Working Voltage DC 9V~36V
Working Current
Average current 180mA@12V
Peak Current 300mA@12V
Working Temp. -35°C-75°C
Storage Temp. -40°C-125°C
Working humidity 10%~90%
Storage humidity 5%~90%
Software Parameters Work Mode Transparent Mode, httpsD Client Mode
Setting Command AT+ Command Structure
Network protocol TCP/UDPDNS/https/FTP
Max TCP connections 4
User Configuration Method Setting Software, AT command and Web Server configuration
Software Functions VPN Support PPTP
Static routing management Support 
Firewall Support
Network diagnosis Support
Remote Management Support
Transparent Transmission Support TCP Server/TCP Client/UDP Server/UDP Client
https Protocol
Transmission
Support
Heartbeat Packet Support
Identity Packet Support IMEI/ICCID/self-defined identity packet
Baud Rate Synchronization Support
USR Cloud Support

 

Agricultural Water-saving Irrigation Solution

Agricultural Water-saving Irrigation SolutionJun 10,2021

Adopting measures suiting local conditions, the agricultural water-saving irrigation system uses different irrigation facilities according to the needs of different regions and crops.

Application to Electric Fire Monitor System

Application to Electric Fire Monitor SystemMay 18,2020

The cellular modem can be used in electrical fire monitoring system. In this application, we will introduce how to use industrial modem USR-G781 and industrial modem USR-DR504 in the electrical fire monitoring system.

Wind Turbine Generating Set Remote and Intelligent Management

Wind Turbine Generating Set Remote and Intelligent ManagementMay 18,2020

The remote IOT monitoring system of the USRIOT generator sets consists of cellular modem, cloud platform and application system. The collected data is updated to the cloud platform to do storage, disposal and analysis through modem.

Environmental Monitoring

Environmental MonitoringJul 03,2020

USR IOT uses wireless communication technology, which can not only allow front-end system to collect the deployment and optimization information, but also construct a new online atmospheric monitoring system to detect air quality in real time and grasp exceeding situation dynamically.

Application in Agricultural Water Saving Irrigation

Application in Agricultural Water Saving IrrigationJul 03,2020

The agricultural water-saving irrigation system adopts the principle of adoption to local conditions, which is to monitor and manage farm irrigation according to different regions and crop demands with the technologies of sensor, 4G and big data processing. This can provide quantitative water that the crops require in order to achieve water-saving irrigation.

Application to Intelligent IT Room Monitoring System

Application to Intelligent IT Room Monitoring SystemJul 03,2020

USR IOT has launched intelligent IT room monitoring system. Different sensors can get access to the USR-G781 through serial ports or RJ45 and connect to data center through internal and external networks.

Remote Water Pump Monitoring System based on USR IOT 4G Cellullar Routers

Remote Water Pump Monitoring System based on USR IOT 4G Cellullar RoutersJul 15,2020

Combined with internet technology, USR IOT launched remote water pump monitoring system, which can achieve remote online control of the water pumps.

Elevator Safety Monitoring

Elevator Safety Monitoring Jul 15,2020

It is urgent to track and understand the operating status of elevators in real time to minimize the occurrence of accidents. To this end, USR IOT provides a series of hardware networking equipment to help elevator manufacturers realize the transmission of status data.

  • Agricultural Water-saving Irrigation Solution
    Adopting measures suiting local conditions, the agricultural water-saving irrigation system uses different irrigation facilities according to the needs of different regions and crops.
  • Application to Electric Fire Monitor System
    The cellular modem can be used in electrical fire monitoring system. In this application, we will introduce how to use industrial modem USR-G781 and industrial modem USR-DR504 in the electrical fire monitoring system.
  • Wind Turbine Generating Set Remote and Intelligent Management
    The remote IOT monitoring system of the USRIOT generator sets consists of cellular modem, cloud platform and application system. The collected data is updated to the cloud platform to do storage, disposal and analysis through modem.
  • Environmental Monitoring
    USR IOT uses wireless communication technology, which can not only allow front-end system to collect the deployment and optimization information, but also construct a new online atmospheric monitoring system to detect air quality in real time and grasp exceeding situation dynamically.
  • Application in Agricultural Water Saving Irrigation
    The agricultural water-saving irrigation system adopts the principle of adoption to local conditions, which is to monitor and manage farm irrigation according to different regions and crop demands with the technologies of sensor, 4G and big data processing. This can provide quantitative water that the crops require in order to achieve water-saving irrigation.
  • Application to Intelligent IT Room Monitoring System
    USR IOT has launched intelligent IT room monitoring system. Different sensors can get access to the USR-G781 through serial ports or RJ45 and connect to data center through internal and external networks.
  • Remote Water Pump Monitoring System based on USR IOT 4G Cellullar Routers
    Combined with internet technology, USR IOT launched remote water pump monitoring system, which can achieve remote online control of the water pumps.
  • Elevator Safety Monitoring
    It is urgent to track and understand the operating status of elevators in real time to minimize the occurrence of accidents. To this end, USR IOT provides a series of hardware networking equipment to help elevator manufacturers realize the transmission of status data.

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