Industrial serial to 2G/3G/4G LTE Modem

Model: USR-G785-E

USR-G785 is an industrial 2G/3G/4G LTE Modem with high stability and anti-interference. It can realize the data transparent transmission between serial port RS232/RS485 and wireless network. The two-way data transmission from serial port to network server can be easily realized by setting simple AT commands.
  • European version
  • Supports 2G/3G/4G network
  • SMS command or confirmation by SMS

Industrial serial to 2G/3G/4G LTE Modem

General Details

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 apply server-side secondary development information

USR-G785 is an industrial wireless data transmission terminal

 

Powerful Interface

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

The command port and data port are independent of each other

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

 

Structure function diagram

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

Structure function diagram of industrial modem USR-G785-E 

 

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

Interface protection

 

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

Electrical fast pulse group EFT

 

ESD

ESD electrostatic protection

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

ESD electrostatic protection

 

Hardware and software watchdogs

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

Hardware and software watchdogs

 

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.

net transparent transmission mode,work mode

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

UDC Mode-Mode Description

In this mode, the user's terminal device can send the request data to the specified HTTP server through this modem, then the modem receives the data from the HTTP 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 HTTP server data request.

 

AT commands

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

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.

Register package mechanism

 

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.

Heartbeat package

 

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

images of 4g modem USR-G785-E

Specifications

Item

Index

Wireless Parameter

Wireless Standard

TDD-LTE/FDD-LTE/WCDMA/GSM

Standard Frequency Band

TDD-LTE

B38/B40/B41

FDD-LTE

B1/B3/B5/B7/B8/B20

WCDMA

B1/B5/B8

GSM

B3/B8

Transmitting Power

TDD-LTE

Class 3 (23dBm±2dB)

FDD-LTE

Class 3 (23dBm±2dB)

WCDMA

Class 3 (24dBm+1/-3dB)

GSM Band8

Class 4 (33dBm±2dB)

GSM Band3

Class 1 (30dBm±2dB)

Technical specifications

LTE

Maximum support for non-CA CAT 4

Supporting 1.4~20MHz RF bandwidth

Downlink support for multi-user MIMO

TDD: maximum up 35 Mbps, maximum down 130 Mbps

FDD: Maximum upstream 50 Mbps, maximum downstream 150 Mbps

WCDMA

Supports 3GPP R8 dc-hspa +

Supports 16-qam, 64_QAM and QPSK modulation

3GPP R6 CAT6 HSUPA: maximum uplink rate 5.76Mbps

3GPP R8 CAT24 dc-hspa + : the maximum downlink rate is 42Mbps

GSM

 R99: CSD transmission rate: 9.6 KBPS,14.4 KBPS

GPRS: supports GPRS multi-slot class 12(default 12)

Coding formats: cs-1 / cs-1 / cs-3 and cs-4

Maximum 4 RX slots per frame

EDGE:

Support EDGE multi-slot class 12(default 12)

Antenna Option

SMA interface

Hardware Parameter

Data Interface
 

RS232:2400bps - 115200bps

RS485:2400bps - 115200bps

Working Voltage

DC 9V~36V

Working Current

Average 60ma-86ma Max: 175mA 12V

Working Temp.

-40℃- 70℃

Storage Temp.

-45℃- 90℃

Size

96.5×70×25mm

Software Parameters

Working Mode

Transparent transmission mode, UDC mode.

Setting Command

AT+ command

Network Protocol

TCP/UDP/DNS

Max. TCP Connection Number

2

User Configuration

Serial AT command,net AT command,message AT command

Customer application software

Support customized application software

Software Functions

Domain name resolution

DNS

Support

Simple Transparent Transmission mode

Support TCP Client/UDP Client

SMS transparent transmission

Support TCP Client/UDP Client

Heartbeat Package

Support 

RFC2217 similar

Support 

Registration Package Mechanism

Support custom /ICCID/IMEI register package

 

How to Buy

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