USR-GPRS232-7S3

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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

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