USR-G785 is an industrial wireless data transmission terminal with high stability and anti-interference. It can realize the data transparent transmission function. The two-way data transmission from serial port to network server can be easily realized by setting simple AT commands.

USR-G785-E is a product developed for serial devices and network servers to transmit data to each other. With simple AT instructions, it is easy to use this product to realize two-way data transparent transmission from serial port to network.

Features

Support TCP Client and UDP Client

Support register package and heartbeat package

Support setting parameters by SMS

Support net transparent transmission mode and UDC mode

Support AT commands

Support RFC2217 similar function

Support remote management

Powerful Interface

All-terminal installation, 485 isolated power supply, stronger EMC protection.

The command port and data port are independent of each other

Structure function diagram

The following diagram is a block diagram of the function of the modem.

Interface protection

All-terminal installation, lightning protection

Power/interface high current protection

485 surge proof 1KV

485 power isolation

Over-current Protection of Power Supply

EFT

Electrical fast pulse group EFT

Ensure that the device hardware is not damaged when the instantaneous large current (such as lightning strike, power switch, etc.) occurs in the circuit

Power 2KV

ESD

ESD electrostatic protection

Prevent electrostatic damage to device, such as: dust electrostatic, electric power environment arc

Hardware and software watchdogs

Well- designed external watchdog circuit, 24 hours without downtime, stable operation

Work Mode

Network transparent transmission mode

Serial devices can send data to designated server through modem when work at this mode, modem can also forward server data to serial devices.

4G modem USR-G785 supports two sockets, which are independent of each other.

In this mode, the serial port device can send data to the specified server on the network through this modem. The modem can also accept data from the server and forward the information to the serial port device.

Users do not need to pay attention to the data conversion process between serial port data and network packets, only through simple parameter settings, data transparent communication between serial port devices and network servers can be achieved.

UDC Mode

Mode Description

In this mode, the user's terminal device can send the request data to the specified https server through this modem, then the modem receives the data from the https server, parses the data and sends the results to the serial port device.

Users do not need to pay attention to the data conversion process between serial port data and network packets, only through simple parameter settings, can realize the serial port device to https server data request.

AT commands

Support query and set parameters by serial port AT commands and network AT commands

Register package mechanism

When USR-G785 works at TCP Client mode, it will automatically send register package when connection establish. Registration data can be IMEI codes, ICCID codes and custom registration data.

Heartbeat package

USR-G785 support network heartbeat package and serial port heartbeat package.

Network heartbeat packets keep the server active by sending heartbeat packets continuously to maintain a normal connection with the server.

The serial heartbeat packet keeps the serial device in an active state and actively grabs the sensor data that cannot be pushed actively.

Images of industrial serial to 2G/3G/4G LTE modem USR-G785-E