Low Cost UART TTL GPRS/GSM Modules | GSM Modules

UART TTL GPRS/GSM Module

Model: USR-GPRS232-7S3

USR-GPRS232-7S3 is a Low Cost UART TTL GPRS/GSM Module, based on USR-GM3 gprs module. Clients can use the product to realize bidirectional transparent transmission from serial port to network through simple AT command. Features of Low Cost Gsm Modules
  • PIN Type
  • Operation temperature Range of -25° ~85°
  • Quad-Band GSM/GPRS 850/900/1800/1900MHz

Low Cost UART TTL GPRS/GSM Modules | GSM Modules

General Details

Introduction of Low Cost Gsm Modules

The Low Cost Gsm Modules, used for data transparent transmission. USR-GPRS232-7S3 is highly-integrated UART to GSM/GPRS module. Users can easily make communication with it among serial device, cellphone and network device. USR-GPRS232-7S3 is based on USR-GM3 gprs module. Clients can use the product to realize bidirectional transparent transmission from serial port to network through simple AT command.

 

Features of Low Cost Gsm Modules

Support GSM850/900,DCS1800/1900

Support GSM/GPRS and 2G/3G/4G card, but don’t support 3G/4G network

Support 2 sockets, Support TCP and UDP

4KB cache for each of sockets, user can choose to cache data or not

Support register packet and heartbeat packet

Support setting parameters via SMS message

Support multi work modes: SMS transmission mode, network transmission mode and HTTPD mode

Support basic and extend AT command sets

Support class RFC2217, can dynamically modify serial parameter of module via network

Support flow control: RTS/CTS

 

Function Structure of Low Cost Gsm Modules

Function Structure of Low Cost Gsm Modules

 

Application Field of Low Cost Gsm Modules

Power industry: power remote meter reading, substation monitoring, power line monitoring

Municipal industry: street lamp remote monitoring management, pipe network remote monitoring, urban energy consumption monitoring

Oil industry: remote monitoring of oil-gas well, GPRS remote oilfield automation detection monitoring system, Gas pipe network monitoring system solutions

Environmental protection industry: pollution sources monitoring, atmospheric environment monitoring, noise monitoring, dust monitoring

Agricultural application: greenhouse remote monitoring and management, aquaculture monitoring management, agricultural water pump monitoring management

Application Field of Low Cost Gsm Modules

 

Images of Low Cost Gsm Modules

Images of Low Cost Gsm Modules

Specifications

Network  
Standard GSM / GPRS
Rate 14.4 Kbps ~ 57.6 Kbps
Standard Frequency Range 850/900/1800/1900MHz
GPRS Multi-slot Class GPRS Class 10
GPRS Terminal Device Class Class B
GPRS Coding Schemes CS1 ~ CS4
Max Launch Power GSM900 class4 (2W), DCS1800 class1 (1W)
Application GSM standard AT instruction set / USR extension AT instruction set / data transmission / SMS transmission
Network Protocol TCP, UDP, DNS,Http
Network Link Count 2
Network Buffer Send: 4K bytes, receive: 4K bytes
Serial  
Port Number 1
Interface Standard TTL: 2.54 pin type 2.8 ~ 3.6 V
Data Bits 5, 6, 7, 8
Stop Bit 1, 2
Check Bit None, Even, Odd
Baud Rate 2400 bps ~ 921600 bps
Flow Control CTS/RTS
Buffer Receive and send 4K bytes respectively
Device Interface  
Antenna Interface IPEX
SIM Card 1.8V / 3V
Speech Interface 1 MIC input, 1 SPEAK output
Software  
Virtual Serial(USR-VCOM) Windows 2000 or higher (32 bit/64 bit)
Configuration Serial AT command, SMS AT command, network AT command
Basic Parameter  
Size 44.5 x 32 x 13(mm)
Operating Temp. -25 ~ 85°C
Storage Temp. -40 ~ 125°C, 5 ~ 95% RH(no condensation)
Input Voltage DC 5 ~ 16 V
Working Current Average: 35 ~ 48mA, max: 394mA(12v)
More  
Warranty 2 years
Accessory PCB Antenna

How to Buy

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Models

Model

USR-GM3

USR-GM3P

USR-GPRS232-7S3

GPS Positioning

- -

- -

VCC

3.4 - 4.2 V

- -

VDD

- -

5.0 – 18.0 V

RTS/CTS Flow Control

- -

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