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Serial UART TTL GPRS/GSM Module
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Introduction of Cost-effective UART GSM Modules
Cost-effective UART GSM Modules USR-GPRS232-7S3 are used for data transparent transmission, which are highly-integrated UART to GSM/GPRS modules. 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 Cost-effective UART GSM Modules USR-GPRS232-7S3
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 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
Function Structure of Cost-effective GSM Modules
Support PUSR Cloud
Application Field of Cost-effective 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
| 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 |
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User Manual
[Datasheet] USR-GPRS232-7S3 Datasheet | download
[User Manual] USR-GPRS232-7S3 Hardware Manual V1.0.0 | download
[User Manual] USR-GPRS232-7S3 Hardware Manual V1.2 | download
[User Manual] USR-GPRS232-7S3 User Manual V1.0 | download
[AT Command] USR-GM3-AT-Command-Set_V1.0.2 | download
[SMS AT Command] How-to-send-AT-commands-by-SMS | download
Development File
[Demo Code] TCPIP Demo Code | download
Application Software
[USR-VCOM] USR-VCOM_V3.7.2.527_Setup | download
[USR-TCP-Test] Testing Software | download
[USR-TCP-Test_android] Testing Software | download
[USR-GM3] Setup Software V1.1.3.61 | download
Product Certificate
[CE Certificates] CE-certificates-serial-to-gprs-module-GM3-2017 | download
[Certificate] Certificate for China Compulsory Product Certification | download
[CCC Certificate]CCC-Certificates-Wireless-Data-Terminal-2018 | download
[CE Certificates] USRIOT 2G Wireless Module CE Certificates | download
Company File
