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

 

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

 

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

 net transparent transmission 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 of 4G modem USR-G785-E

UDC Mode 

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.

 

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

 

 

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