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Home / Products/ Discontinued Items / USR-GM3P
USR-gm3p.jpg
  • USR-gm3p.jpg

USR-GM3P

USR-GM3P

USR-GM3P

USR-GM3P


Introduction of Low Power GPRS Modules

This is a serial uart to GSM / GPRS module with embedded GPS and LBS Positioning function. It is used for data transparent transmission. USR-GM3P is highly-integrated UART to GSM/GPRS and GPS module. Users can easily make communication with it among serial device, cellphone and network device. USR-GM3P is designed for embedded system, and it is so small and convenient that you can integrate it to your system easily.

Introduction of Low Power GPRS Modules, GPRS+GPS Module

 

Features of Low Power GPRS Modules

Transparent transmission between serial and GPRS / GSM
Embedded GPS and LBS Positioning
Support UDC Protocol
Support GSM 850/900,DCS1800/1900 MHz
Support 4 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 3 work modes: SMS transmission mode, network transmission mode and httpsD 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
 
 

Structure of Low Power GPRS Modules

Structure of Low Power GPRS Modules

 

Unique Features of Low Power GPRS Modules

Unique Features of Low Power GPRS Modules

 

GPS Function

GPS Serial port heartbeat package, network heartbeat package, AT query

GPS Function, Unique Features of Low Power GPRS Modules

 

Work Mode

Network Transmission

To achive bidirectional transparent transmission between GPRS module and network.

work mode, Unique Features of Low Power GPRS Modules

 

httpsD Client

Support serial data https(GET/POST)to submit to the specified server

httpsD Client, Unique Features of Low Power GPRS Modules

 

AT Command

Support AT command query and set the parameters via-serial, network, SMS.

Unique Features of Low Power GPRS Modules, support AT command query  

 

Application Field of Low Power GPRS Modules

Application Field of Low Cost Gsm Modules

 

Image of Low Power GPRS Modules

Image of Low Power GPRS Modules

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 / httpsD
Network Protocol TCP,UDP,DNS,https
Network Buffer Send: 4K bytes, receive: 4K bytes
Serial
Port Number 1
Interface Standard TTL: SMT 2.8 ~ 3.6 V
Data Bits 7,8
Stop Bit 1,2
Check Bit None,Even,Odd
Baud Rate 2400 bps ~ 921600 bps
Flow Control CTS/RTS
Buffer Send and receive 4k bytes respectively
Device Interface
SIM Card 1.8V / 3V
Speech Interface 1 channel MIC input, 1 channel 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 27.9 x 24 x 3 mm
Operating Temp. -25 ~ 85°C
Storage Temp. -40 ~ 125°C, 5 ~ 95% RH(no condensation)
Input Voltage DC 3.4 ~ 4.2V, recommend: 3.8V
Working Current Average: 55 ~ 90mA; Max: 750mA
More
Warranty 2 years
Accessory null

 

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