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
Specifications
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
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.
Industrial 4G LTE Router with Serial RS232 RS485 Transparent Transmission (G781-43)
