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Product Name：Module GPRS | UART GSM Modules

Model：USR-GPRS232-7S3

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

Function Structure of Low Cost 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

Application Field of Low Cost Gsm 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
Network Protocol	TCP, UDP, DNS,https
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

after-sale guarantee

Working Time：

Monday to Friday 8:30-18:00 in Beijing time. Message us online for a quick response when we are on-work. Or you can leave a message. Our sales will contact you as soon as possible. You can get free technical support & professional support for your project on our technical support h.usriot.com. Get in touch with us via email at sales@usriot.com. We want to help with any questions you have.

Delivery：

We will deliver goods as soon as possible after we received the order. The order generated on weekend and holidays will be handled after back. We ship the goods with the following carriers TNT, DHL, FedEx, UPS, shipping agent.

Warranty：

We provide one year's warranty of modules and two year's warranty of cellular routers, cellular modems, serial device servers for any reason. If you believe the item is defective and under warranty, please submit a Return or Exchange request on the product's support page, or contact us at support@usriot.com.

—Network Infrastructure—

● Cellular Routers

● Industrial Switches

● Industrial Wireless

—Device Networking—

● Serial to Ethernet/WiFi

● Cellular Modems

● LoRa Network

● IoT Modules

—Edge Control—

● IoT Gateways

● Open Source Gateway

Development Kits

Module GPRS | UART GSM Modules

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